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Hydrothermal conversion from hydrogarnet to hydroandradite based on alumina recovery from red mud 认领 引用 被引量：1
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作者 Hong-fei WU Xiao-lin PAN +3 位作者 Ji-long LIU Feng QIU Tun HE Hai-yan YU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第1期309-322,共14页
To synergistically recover alumina and alkali from red mud(RM),the structural stability and conversion mechanism of hydroandradite(HA)from hydrogarnet(HG)were investigated via the First-principles,XRF,XRD,PSD and SEM ... To synergistically recover alumina and alkali from red mud(RM),the structural stability and conversion mechanism of hydroandradite(HA)from hydrogarnet(HG)were investigated via the First-principles,XRF,XRD,PSD and SEM methods,and a novel hydrothermal process based on the conversion principle was finally proposed.The crystal structure simulation shows that the HA with varied silicon saturation coefficients is more stable than HG,and the HA with a high iron substitution coefficient is more difficult to be converted from HG.The(110)plane of Fe2O3 is easier to combine with HG to form HA,and the binding energy is 81.93 kJ/mol.The effects of raw material ratio,solution concentration and hydrothermal parameters on the conversion from HG to HA were revealed,and the optimal conditions for the alumina recovery were obtained.The recovery efficiencies of alumina and Na2O from the RM are 63.06%and 97.34%,respectively,and the Na2O content in the treated RM is only 0.13%. 展开更多
关键词 hydrogarnet hydroandradite structural stability hydrothermal conversion red mud
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Unraveling in-situ electrochemical reconstruction of indium oxide catalysts with oxygen vacancy for enhanced electrocatalytic CO2-to-formate conversion 认领 引用 被引量：1
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作者 Biao Hong Wei Xiao 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第5期1652-1661,I0174-I0197,共10页
Indium-based materials have emerged as promising alternative catalysts for the selective electroreduction of CO2to formate,yet the optimal catalytic configuration remains elusive.Herein,theoretical calculation reve... Indium-based materials have emerged as promising alternative catalysts for the selective electroreduction of CO2to formate,yet the optimal catalytic configuration remains elusive.Herein,theoretical calculation reveals that metallic indium over oxygen vacancycontaining In2O3support(In/In2O3-VO)possesses the lowest energy barriers(0.99 eV)for CO2reduction to formate.A rational air-annealing strategy applied to In3+-adsorbed resin is developed to synthesize indium oxide catalysts containing oxygen vacancy(R-In2O3).In-situ spectroscopy techniques confirm in-situ electrochemical reconstruction of the In/In2O3configuration and the effective stabilization of the key reaction intermediate(HCOO*).Consequently,the catalyst delivers excellent CO2-to-formate conversion performance,maintaining a current efficiency above 92% over 56 h of galvanostatic electrolysis at-250 mA·cm-2.These insights provide an effective strategy for the rational design of high-performance and durable indium-based electrocatalysts for sustainable formate production. 展开更多
关键词 carbon dioxide electroreduction indium oxide formate active sites energy conversion
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Conversion of human glial cells into neurons in ex vivo culture of human brain tissue:Essential roles of the transcription factors NeuroD1 and Ascl1 认领 引用
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作者 Liang Xu Qingsong Wang +8 位作者 Jiancheng Liao Jiajun Zheng Bing Qin Wen Li Jiaxuan Zhang Wei Li Xiangyu Wang Maoying Zhang Gong Chen 《Neural Regeneration Research》 SCIE CAS CSCD 2026年第8期3650-3658,共9页
Transcription factor-mediated cell conversion has been reported in the central nervous system of both rodents and nonhuman primates.In particular,glia-to-neuron conversion has been achieved in the brain and spinal cor... Transcription factor-mediated cell conversion has been reported in the central nervous system of both rodents and nonhuman primates.In particular,glia-to-neuron conversion has been achieved in the brain and spinal cord of animal models for neural regeneration and repair.However,whether glia-to-neuron conversion can be used for brain repair in humans needs to be explored.To investigate the use of glia-to-neuron conversion technology in the human brain,we established a long-term ex vivo culture system using human brain tissue that was surgically removed from epileptic patients to test glia-to-neuron conversion directly.We found that neural transcription factors NeuroD1 and Ascl1 both converted human glial cells into neurons.Immunostaining and electrophysiological recordings showed that the glia-converted neurons demonstrated immature properties during the initial 7-14 days of conversion,and then acquired more mature neuronal properties after 21-27 days of conversion.These ex vivo conversion studies in human brain tissue pave the way toward future clinical trials using a transcription factor-based glia-to-neuron conversion approach to treat neurological disorders. 展开更多
关键词 Ascl1 brain slice cell conversion ex vivo culture glial cell glia-to-neuron conversion human brain in vivo reprogramming neural regeneration NeuroD1
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Characteristics of energy conversion and energy flux densities at the Kelvin-Helmholtz vortex 认领 引用
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作者 ZhiZhong Guo Zhe Wang +5 位作者 HuiShan Fu WenZhe Zhang ChenXi Du WenDing Fu ZhenYu Xu JiQiu Niu 《Earth and Planetary Physics》 EI CSCD 2026年第3期524-533,共10页
The Kelvin-Helmholtz(KH)instability serves as an important process for transporting the solar wind mass and energy into the Earth’s magnetosphere.However,energy conversion and energy transport at the vortices driven ... The Kelvin-Helmholtz(KH)instability serves as an important process for transporting the solar wind mass and energy into the Earth’s magnetosphere.However,energy conversion and energy transport at the vortices driven by the KH instability have not been investigated in detail thus far.Here,using high-resolution data from the Magnetospheric Multiscale(MMS)spacecraft,we compare characteristics of energy conversion and energy flux densities between a linear and a nonlinear KH vortex.We find that the linear KH vortex is acting as a generator region(∫J·E0).The energy flux densities increase significantly at the trailing edge of KH vortices.At the linear KH vortex,energy transfer is equally contributed by enthalpy,ion kinetic,and Poynting fluxes,whereas in the nonlinear case,the energy is mainly transported in the form of the Poynting flux and electron kinetic energy and heat fluxes are negligible.These results help us better understand the role of KH vortices in energy conversion and transport at the Earth’s magnetopause. 展开更多
关键词 magnetopause Kelvin-Helmholtz instability energy conversion
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Real-Time Monitoring of Component Conversion during the Foaming and Curing Process of Self-expanding Polyurethane Grouts 认领 引用
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作者 Xiao-Long Li Xuan-Xuan Zi +3 位作者 Xiao-Feng Liu Ming Guo Yan-Hui Zhong Bei Zhang 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第6期1843-1854,I0016,共12页
Polyurethane polymer grouting materials with rapid expansion and solidification characteristics have been widely applied for infrastructure repair and reinforcement.An accurate characterization of the chemical reactio... Polyurethane polymer grouting materials with rapid expansion and solidification characteristics have been widely applied for infrastructure repair and reinforcement.An accurate characterization of the chemical reaction process of the slurry is essential for investigating its grouting mechanism.However,the high concentration of isocyanate groups in such polymer systems causes a“flat-top phenomenon”in Fourier transform infrared(FTIR)spectroscopy,rendering it difficult to accurately determine the conversion rate.To address this issue,a real-time method for measuring the reaction conversion rates of slurry components was proposed.The polyol conversion rate was obtained by tracking the integral area changes of the C―O bond peak in the carbamate product relative to the internal standard.The total slurry volume was determined at different time intervals using light detection and ranging(LiDAR)-based point cloud scanning,from which the gas volume was estimated.Combined with the solubility curve of the physical blowing agent and ideal gas law,the conversion rate of the chemical blowing agent was calculated.The isocyanate conversion rate was indirectly inferred based on the measured polyol and chemical blowing agent conversions.This method was applied to a polyurethane grouting material used in an engineering project,and the time-resolved conversion curves of all components throughout the reaction were obtained.The results revealed a three-stage evolution:a slow initial increase,a rapid rise in the middle stage,and a gradual deceleration in the later stage.The foaming reaction proceeded consistently faster than the gelation reaction did.These findings provide a foundation for further research on the diffusion mechanisms of polyurethane polymer slurries. 展开更多
关键词 Grouting materials Polymer Chemical reaction Component conversion rate testing
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Bio-inspired amino acid promoted nanofluidic ion transport and energy conversion in free-standing layered vermiculite-based membranes 认领 引用
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作者 Ruohan Feng Chaoran Zhang +1 位作者 Di Zhang Fang Song 《Green Energy & Environment》 SCIE EI CAS CSCD 2026年第1期248-257,共10页
Two-dimensional nanofluidic membranes have garnered considerable interest due to their potential for cost-effective osmotic energy harvesting.One promising approach to enhancing ion conductivity and selectivity is the... Two-dimensional nanofluidic membranes have garnered considerable interest due to their potential for cost-effective osmotic energy harvesting.One promising approach to enhancing ion conductivity and selectivity is the incorporation of guest additives.However,the traditional host-guest configuration can undermine the structural integrity of nanochannels owing to the inconsistent size and shape of these additives.Drawing inspiration from the intricate design of biological protein channels,which utilize small amino acid molecules as guests,we have addressed this issue by incorporating glycine,a common amino acid,into a vermiculite membrane using a simple vacuum-assisted infiltration method.The resulting vermiculite-glycine membrane demonstrates 1.8 times greater ionic conductivity and twice the power density compared to pure vermiculite membranes.Analysis based on glycine content,coupled with spectroscopic examination,reveals that ion conductivity is linked to the distribution of glycine molecules across three specific sites within the membrane.This suggests that glycine molecules—whether confined in voids,adsorbed onto nanochannel surfaces,or intercalated within multilayered vermiculite nanoparticles—enhance nanofluidic ion transport by modulating surface and space charge density,as well as strengthening hydrogen bonding,electrostatic interactions,and steric effects.This work reveals the specific interactions between amino acids and vermiculite,offering a novel path for advancing nanofluidic composite membranes and highlighting critical considerations for the proposed strategy. 展开更多
关键词 Amino acid Nanofluidics Ion transport Osmotic energy conversion Vermiculite-based membrane
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Conversion of subtropical natural forests to plantations reduces ant taxonomic and functional diversity 认领 引用
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作者 WEN Huihui PENG Qingqing +3 位作者 WANG Dingyi YUE Kai NI Xiangyin WU Fuzhong 《Journal of Mountain Science》 SCIE CSCD 2026年第6期2687-2700,共14页
The widespread conversion of natural forests to monoculture plantations poses a major threat to soil biodiversity,yet its impacts on the taxonomic and functional dimensions of keystone species remain poorly understood... The widespread conversion of natural forests to monoculture plantations poses a major threat to soil biodiversity,yet its impacts on the taxonomic and functional dimensions of keystone species remain poorly understood.Focusing on ants,social insects highly sensitive to environmental changes,we investigated their diversity responses to forest conversion in a mountain ecosystem.Using natural forests as a baseline,we quantified shifts in ant community structure in adjacent broadleaved and fir plantations.Forest conversion induced severe biotic homogenization,with a single genus(Pheidole)accounting for 62%–68%of total ant abundance.Conversion to fir plantations,in particular,led to pronounced declines in taxonomic diversity,significantly reducing Shannon–Wiener diversity and Pielou evenness,underscoring the disruptive effects of coniferous monocultures on natural species assemblages.Functional diversity declined even more sharply after conversion.Functional dispersion(FDis)and Rao’s quadratic entropy(RaoQ)decreased by 68%–74%in broadleaved plantations and by 61%–69%in fir plantations,with the strongest reductions observed in summer.Notably,taxonomic and functional diversity declines were decoupled in response to forest conversion.In plantations,ant diversity variation was primarily associated with moisture and substrate quality(lignin and cellulose),whereas in natural forests,it was more closely linked to litter inputs(litter quantity).Our findings demonstrate that forest conversion profoundly compromises both the structural composition and functional organization of ant communities,potentially triggering cascading effects on critical ecosystem processes.To mitigate biodiversity loss in mountain forest ecosystems,management practices should avoid replacing natural forests with monoculture plantations and instead maintain habitat conditions that support both taxonomic and functional diversity of ants. 展开更多
关键词 Subtropical forests Forest conversion Ants Taxonomic diversity Functional diversity
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Numerical investigation of natural gas-enhanced autothermic pyrolysis for optimizing in-situ conversion in oil shale 认领 引用
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作者 Chao-Fan Zhu Tan-En Jiang +3 位作者 Shan-Shan Yao Jia-Zong Li Rui Jia Wei Guo 《Petroleum Science》 SCIE EI CAS CSCD 2026年第2期762-776,共15页
The autothermic pyrolysis in-situ conversion process for oil shale(ATS)offers the advantages of low development costs and the capability to exploit deep oil shale resources.However,oil shale formations with low oil co... The autothermic pyrolysis in-situ conversion process for oil shale(ATS)offers the advantages of low development costs and the capability to exploit deep oil shale resources.However,oil shale formations with low oil content encounter the challenge of insufficient heat-generating donors in the thermal cracking residue,making it difficult to sustain the autogenous thermal reaction through oxidative exotherm.In this study,we propose a natural gas-assisted autogenous thermal in-situ conversion technology(H-ATS)designed to develop low oil content shale,and we analyze its mechanism through numerical simulation across oil shales with varying oil contents.The results show that introducing 2.0%natural gas into the injected air successfully triggers the autogenous thermal reaction in low-oil-conte nt shale,achieving an energy efficiency of 3.70.For medium oil content shale,a 2.0%natural gas addition,and for high oil content shale,a 4.0%addition,significantly reduces the gas compression energy required,enhancing energy efficiency to 8.11 and 13.04,respectively—representing improvements of 29.47%and 19.19%over the ATS process alone.This study evaluates the applicability of H-ATS technology across various oil shale formations,providing a new approach for the commercialization of in-situ conversion technology. 展开更多
关键词 Oil shale Autothermic pyrolysis in-situ conversion process Natural gas-assisted Energy efficiency
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A Stretchable Sandwich Composite Film With Ultra-Broadband Electromagnetic Interference Shielding and High-Performance Photothermal Conversion Capability 认领 引用
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作者 Dan Guo Donglei Li +7 位作者 Bochong Wang Jianyong Xiang Anmin Nie Yingchun Cheng Kun Zhai Tianyu Xue Fusheng Wen Congpu Mu 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期716-728,共13页
With the rapid growth demand for advanced integrated electronic systems,lightweight flexible electromagnetic interference(EMI)shielding films integrated with functional properties,such as excellent mechanical properti... With the rapid growth demand for advanced integrated electronic systems,lightweight flexible electromagnetic interference(EMI)shielding films integrated with functional properties,such as excellent mechanical properties and self-healing capability,are a research focus in high-tech functional materials.Herein,a sandwich-structured aramid nanofibers/silver nanoparticles/waterborne polyurethane(ANF/AgNPs/WPU,AAgW)composite film is fabricated using microwave synthesis combined with spin-coating.AAgW composite film exhibits excellent stretchability,exceptional EMI shielding effectiveness(SE)in the frequency range of 6.0-60.0 GHz,and effcient photothermal conversion.AAgW film exhibits outstanding mechanical properties with a fracture strain of 406.4%.Notably,EMI SE of 40 dB is achieved in an ultra-wide frequency range of 6.0-60.0 GHz when the thickness of AAgW composite film is only 26.0μm.After 100 stretching cycles at 35%strain,the average SE in the X-band remains at 19.6 dB.In addition,the AAgW film possesses an active heating ability through photothermal conversion,and its surface saturation temperature can reach 71℃under a one-sun illumination.The integration of the"shielding-heating"function provides a brand-new solution for simultaneously achieving stretchable ultra-wideband EMI shielding and photothermal conversion.This work shows great promise for applications in advanced wearable devices and high-frequency communication terminals. 展开更多
关键词 electromagnetic interference shielding photothermal conversion silver nanoparticles spin-coating stretch waterborne polyurethane
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Ultra-High-Efficiency On-Chip CO2Conversion by Nanosecond Self-Pulsing Micro-Plasma Devices 认领 引用
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作者 Guangyu Sun Bartu Karakurt +3 位作者 Hongkeng Zhu Onder Soydal Jeremy S.Luterbacher Elison Matioli 《Carbon Energy》 SCIE EI CAS CSCD 2026年第5期159-172,共14页
Conversion of CO2into carbon-neutral fuels and chemicals remains a central challenge in sustainable chemistry and energy sectors,as conventional catalytic processes are critically limited by the thermodynamic equil... Conversion of CO2into carbon-neutral fuels and chemicals remains a central challenge in sustainable chemistry and energy sectors,as conventional catalytic processes are critically limited by the thermodynamic equilibrium and low overall energy efficiency.Here,a micro-plasma chip for CO2-to-CO conversion is introduced that achieves ultra-high energy efficiency and breaks the thermodynamic equilibrium limitation under ambient conditions.These micro-plasma devices(MPDs)with sub-10-μm discharge gaps self-generate nanosecond pulses directly from a DC bias without external pulsed-power sources and drive discharges through field emission at substantially lower voltages than conventional plasma systems,together yielding an ultra-high energy efficiency.An experimentally validated theoretical framework elucidates the device's working principle and is used for performance improvement.The resulting optimized,scaled-up MPD array constructed for benchmark comparison demonstrates 30%single-pass CO2conversion and 50%overall energy efficiency without any catalyst,which is unprecedented among all previously reported micro-plasma systems.Remarkably,its performance exceeds that of many conventional large-scale plasma systems,while consuming orders of magnitude less power.Integration of localized on-chip reactive species generation by MPDs with catalytic,synthetic,or electrochemical processes could spur the development of new CO2reduction pathways. 展开更多
关键词 CO2reduction micro-discharge microelectronics on-chip chemistry plasma conversion
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Recent Advances in Nanomaterial-Based Light Conversion for Agriculture 认领 引用
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作者 Ting Tang Xue-Yan Gong +2 位作者 Ferdinand Ndikuryayo W.M.W.W.Kandegama Wen-Chao Yang 《Aggregate》 EI CAS CSCD 2026年第4期244-260,共17页
Photosynthesis is a key physiological process for plant growth and survival.Adverse environmental conditions(e.g.,drought and extreme temperatures)have significantly reduced photosynthetic efficiency.Therefore,enhanci... Photosynthesis is a key physiological process for plant growth and survival.Adverse environmental conditions(e.g.,drought and extreme temperatures)have significantly reduced photosynthetic efficiency.Therefore,enhancing crop photosynthesis is crucial for increasing crop yield and addressing global food security.Artificial light supplementation has become a common method to improve photosynthetic efficiency in modern agriculture.The problems of high energy consumption,uneven light distribution,and light pollution associated with traditional supplementary lighting systems not only increase economic costs but can also lead to imbalanced plant growth and negative impacts on the environment and ecosystem.However,traditional supplementary lighting systems suffer from high energy consumption and light pollution,whereas nanotechnology has emerged as a promising alternative to enhance photosynthetic efficiency,despite the limited commercial nanomaterials and unclear action mechanisms.This review systematically summarizes the key factors affecting plant photosynthesis and outlines the main types of existing photosynthesis promoting nanomaterials as well as their underlying mechanisms.On the basis of their modes of action,these nanomaterials are classified into three major categories.First,nanomaterials that directly interact with plant photosynthetic components,second,supplementary light sources integrated with nanomaterials,and third,nanocomposite agricultural films.We discuss the research progress in the application of these nanomaterials in crop cultivation,aiming to provide theoretical support and a scientific basis for the development of more efficient and environment-friendly nanomaterials for enhancing plant photosynthesis. 展开更多
关键词 light conversion materials nanomaterials photosynthetic efficiency supplemental lighting sustainable agriculture
Leakage Current Dominated Piezocatalysis by Na(AlSi2O6)H2O Nanobelts:Highly Efficient U(Ⅵ)Solidification and N2 Conversion 认领 引用
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作者 Feixue Gao Ruimin Li +7 位作者 Yusen Han Ming Fang Shuo Zhang Yan Chen Xiaoli Tan Hui Chen Bin Ma Meiyan Ni 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期856-867,共12页
Piezocatalysis has garnered unprecedented research enthusiasm for applications in energy and environmental fields,as it can harvest the tiny vibration energy from the natural environment and convert it into electrical... Piezocatalysis has garnered unprecedented research enthusiasm for applications in energy and environmental fields,as it can harvest the tiny vibration energy from the natural environment and convert it into electrical energy to drive catalytic reactions.However,the fundamental principles underlying this strategy remain a subject of controversy.Herein,a leakage current-based mechanism is first proposed and employed to elucidate piezocatalysis.It is demonstrated that the cyclic ultrasonic vibration induces an asymmetric cyclic internal electric field,which drives the directional migration of free electrons(i.e.,leakage current)and thus facilitates the occurrence of piezocatalysis.As an example,Na(AlSi2O6)H2O(NASO)nanobelts are fabricated from perlite powder and utilized for highly efficient and low-cost piezocatalytic extraction of uranium(U[Ⅵ])from seawater and the direct conversion of air to nitrate.The extraction of U(Ⅵ)is ascribed to the formation of UO4·2H2O by combining UO22+ and H2O2,and the extraction efficiency is up to 96.97%.Moreover,nitrate is successfully produced from air,and the yield reaches 3.85 mg g-1 h-1.This work offers new insights into the catalytic process,holds substantial application potential for addressing energy and environmental challenges,and sheds important light on the rational design and optimization of piezocatalysts. 展开更多
关键词 leakage current N₂conversion nanobelt piezocatalysis U(VI)removal
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Changes in source-specific health risks of PM2.5-bound trace elements after the residential“coal-to-gas”conversion measure in urban Beijing 认领 引用
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作者 Wei Yuan Ru-Jin Huang +6 位作者 Jing Duan Jie Guo Wenjuan Cao Ting Wang Jingye Ren Yanan Zhan Wei Xu 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第8期436-442,共7页
The concentration of atmospheric fine particles(PM2.5)has been considerably lowered in Beijing as a result of the implementation of a number of air pollution control initiatives.Nevertheless,the understanding of th... The concentration of atmospheric fine particles(PM2.5)has been considerably lowered in Beijing as a result of the implementation of a number of air pollution control initiatives.Nevertheless,the understanding of the impact of clean air measures on the health risks of PM2.5-bound trace elements is still limited.In this study,the concentrations and chemical fractionation of 14 trace elements in PM2.5 in Beijing after the"coal-to-gas"conversion measure were measured and compared with our previous study in Beijing before the measure.The major elements changed from Fe,Zn,and Pb before the measure to Fe,Ti,and Cu after the measure.The bioavailability of Pb,Zn,Cu,Sr,Ba,and Cr increased by approximately 5%-44%after the measure,while the bioavailability of Cd,Mn,As,Co,V,Fe,Ni,and Ti decreased by approximately 0.5%-31%,which may be mainly attributed to changes in their emission sources.After the measure,the relative contribution of traffic-related emissions to the total concentration of 14 elements increased by 12.1%,and coal combustion decreased by 17.5%.Trafficrelated emissions(92.8%)were the primary causes of carcinogenic risk after the measure,while traffic-related emissions(52.2%)and coal combustion(41.4%)dominated before the measure.This study elucidates changes in concentrations,chemical fractionation,bioavailability,sources,and health risks of PM2.5-bound trace elements in Beijing before and after the“coal-to-gas”conversion measure and suggests that traffic-related emissions should still be the main focus in the future. 展开更多
关键词 Trace elements Chemical fractionation Emission sources Health risks “Coal-to-gas”conversion measure
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High-Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium-Ion Batteries 认领 引用
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作者 Yuyun Li Wanquan Yu +3 位作者 Haigang Dong Chenchen Li Qi Meng Peng Dong 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期447-460,共14页
The massive stockpiling of copper slag(CS)presents severe environmental and resource-waste challenges.Existing strategies for CS valorization typically yield low-value-added products.Herein,we propose an innovative hi... The massive stockpiling of copper slag(CS)presents severe environmental and resource-waste challenges.Existing strategies for CS valorization typically yield low-value-added products.Herein,we propose an innovative hierarchical regulation approach to transform CS into high-performance LiFePO4(LFP)cathode materials.The process involved alkali hydrolysis pretreatment followed by oxidative leaching with HNO3 and H2O2.This step selectively removed 71.6%of Si and 82.2%of Al impurities while enriching valuable metals,such as Zn(83.29%),Pb(57.10%),and Cu(73.60%),in the leachate.Subsequent thermodynamically guided coprecipitation and direct phosphation achieved complete Fe utilization and introduced trace Ti doping(0.28 wt%).The optimized LFP@1 and LFP@2 cathodes demonstrate exceptional electrochemical performance,exhibiting specific capacities of 108.19 and 128.21 mAh g-1 at 1C,respectively,while retaining over 97%capacity retention after 300 cycles.A comprehensive life cycle assessment confirms the environmental superiority of this process.This work successfully establishes a closed-loop strategy for CS upcycling and provides fundamental insights into impurity-phase regulation for valorizing iron-silicate-based wastes. 展开更多
关键词 copper slag hierarchical impurity regulation LiFePO4 resource utilization trace element conversion
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Anchoring single/dual metal centers on carbon nitride:Sustainable routes for greenhouse gas conversion and organic photosynthesis 认领 引用
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作者 Qing Lan Su-Juan Jin +1 位作者 Ying-Ying Jiao Zhi-Ming Zhang 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2026年第6期13-33,共21页
Single-atom and dual-atom catalysts(SACs/DACs)have attracted significant interest owing to their maximized atom utilization efficiency and distinctive synergistic properties.Nevertheless,the fabrication of highly effi... Single-atom and dual-atom catalysts(SACs/DACs)have attracted significant interest owing to their maximized atom utilization efficiency and distinctive synergistic properties.Nevertheless,the fabrication of highly efficient and stable SACs/DACs continues to present considerable challenges,largely due to elevated surface energy and the complexity of achieving precise coordination environments and spatial distribution of metallic sites.Effective regulation of chemical bonding between metal centers and supporting matrices is crucial to suppress aggregation tendencies.Carbon nitride(g-C3N4)has gained prominence as a robust scaffold for immobilizing SACs and DACs,attributed to its well-defined electronic configuration,notable chemical stability,and customizable surface characteristics.A dynamic electronic interplay is observed:metal species tailor the electronic properties of g-C3N4,while the support reciprocally modulates the catalytic behavior of metal active sites.This review comprehensively outlines recent progress in g-C3N4-based SACs and DACs,with focused discussion on synthetic methodologies,reaction mechanisms,and applications in greenhouse gas transformation and photosynthetic organic synthesis.Furthermore,the article emphasizes emerging trends in advanced characterization,precision synthesis,and the elucidation of bidirectional metal-support interactions,offering insightful directions for subsequent research in the field. 展开更多
关键词 Single/dual atom Metal centers Carbon nitride Greenhouse gas conversion Organic photosynthesis
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Successful conversion therapy for advanced hepatocellular carcinoma with biliary tumor thrombus and bilateral lobe involvement:A case report 认领 引用
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作者 Yu Zhang Lu-Yang Zhang +4 位作者 Bo Meng Yun-Jian Wang Nan-Mu Yang Qiong Li Min Zhang 《World Journal of Gastroenterology》 SCIE CAS 2026年第24期133-138,共6页
BACKGROUND Bilateral multilobular hepatocellular carcinoma(HCC)complicated by HCCderived biliary tumor thrombus is classified as an advanced-stage disease.Owing to the heavy tumor burden,obstructive jaundice,and other... BACKGROUND Bilateral multilobular hepatocellular carcinoma(HCC)complicated by HCCderived biliary tumor thrombus is classified as an advanced-stage disease.Owing to the heavy tumor burden,obstructive jaundice,and other issues,the prognosis with conventional treatment is extremely poor,and most patients lose the opportunity for radical resection.The advent of immune-combined targeted conversion therapy has brought new hope for such patients.CASE SUMMARY A 36-year-old man with≥10-year history of hepatitis B was admitted for upper abdominal distension and pain.Imaging demonstrated bilateral multifocal HCC with a left HCC-derived biliary tumor thrombus(Chinese Liver Cancer stage IIIa,Barcelona Clinic Liver Cancer stage C),obstructive jaundice,and cirrhosis.The tumor was initially considered unresectable.The patient received conversion therapy with camrelizumab,apatinib mesylate,and radiofrequency ablation.After five cycles,both the tumors and thrombus regressed,and tumor marker levels decreased markedly.The response was assessed as partial response according to mRECIST 1.1 criteria.Liver function improved from Child-Pugh class B to class A,allowing radical surgical resection with negative margins.Postoperative maintenance therapy was administered for 1 year.No recurrence CONCLUSION For advanced bilateral multi-lobular HCC complicated by HCC-derived biliary tumor thrombus,immune-targeted therapy combined with local ablation reduces tumor burden,eliminates thrombus,converts unresectable disease to resectable status,and achieves effective short-term disease control. 展开更多
关键词 Hepatocellular carcinoma Hepatocellular carcinoma-derived biliary tumor thrombus Conversion therapy Immunotherapy Targeted therapy Case report
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Cadonilimab Plus Lenvatinib Combined with Stereotactic Body Radiotherapy for Conversion Therapy in Unresectable or Potentially Resectable Hepatocellular Carcinoma:A Study Protocol 认领 引用
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作者 Jia-jia Fu Jin-feng Zhang +6 位作者 Dong-en Liu Zhen-yu Lin Hong-li Liu Jian-li Hu Tao Zhang Jing Tang Jun Xue 《Current Medical Science》 SCIE CAS CSCD 2026年第2期563-572,共10页
Background Conversion therapy offers a critical opportunity to convert potentially resectable hepatocellular carcinoma(HCC)to surgically resectable status;yet,its optimal protocol and efficacy remain unstandardized an... Background Conversion therapy offers a critical opportunity to convert potentially resectable hepatocellular carcinoma(HCC)to surgically resectable status;yet,its optimal protocol and efficacy remain unstandardized and controversial.As a first-line systemic treatment for advanced HCC,immunotherapy combined with targeted therapy has demonstrated robust antitumor activity.Accumulating evidence suggests that radiotherapy can render some unresectable HCC patients amenable to surgical resections.Given these advancements,this study aims to investigate the efficacy and safety of cadonilimab(a dual immune checkpoint inhibitor targeting PD-1 and CTLA-4)plus lenvatinib(a multi-targeted tyrosine kinase inhibitor)combined with stereotactic body radiotherapy(SBRT),with the goal of achieving conversion therapy for potentially resectable HCC and prolonging survival for unresectable HCC.Methods This is a single-arm,single-center exploratory cohort study designed to enroll 27 HCC patients who meet the following eligibility criteria:surgically unresectable China Liver Cancer Staging(CNLC)stage Ia,Ib,or IIIa,or surgically resectable CNLC stage IIb or IIa.Eligible patients will undergo comprehensive tumor evaluation at three key time points:pre-conversion therapy(cadonilimab+lenvatinib+SBRT),after the second treatment cycle,and preoperatively.Postoperatively,patients will be followed up every six weeks for long-term efficacy and safety monitoring.The primary endpoint is the objective response rate(ORR),assessed using the Response Evaluation Criteria in Solid Tumors(RECIST)v1.1 and modified RECIST(mRECIST)criteria;in case of inconsistent results between the two criteria,mRECIST will serve as the primary reference.Secondary endpoints include surgical resection rate,major pathological response(MPR)rate,duration of response(DOR),disease control rate(DCR),progression-free survival(PFS),time to disease progression(TTP),overall survival(OS),and the incidence and severity of treatment-related adverse events(AEs).AEs will be graded in accordance with the National Cancer Institute Common Terminology Criteria for Adverse Events(NCI CTCAE)version 5.0 and coded using the Medical Dictionary for Regulatory Activities(MedDRA),respectively.Discussion This study is designed to evaluate the efficacy and safety of cadonilimab combined with lenvatinib and SBRT for conversion therapy in patients with potentially resectable HCC.By integrating dual immune checkpoint inhibition,anti-angiogenic targeted therapy,and high-precision local radiotherapy,this regimen leverages synergistic antitumor effects to address the unmet clinical need for optimized conversion strategies in HCC.This exploratory trial will provide critical clinical evidence for this novel triple-combination conversion therapy,enriching treatment options for patients with potentially resectable or technically unresectable HCC.The findings are expected to lay a solid foundation for future large-scale,multi-center randomized controlled trials to further validate the clinical value of this regimen.Trial Registration:Chinese Clinical Trials Registration No.ChiCTR2300068781. 展开更多
关键词 Hepatocellular carcinoma(HCC) Conversion therapy Stereotactic body radiotherapy(SBRT) Cadonilimab Immunotherapy Targeted therapy
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Thermo-photocatalytic CO2 conversion with H2O to C2 products in a continuous process by ZIF-67/biochar composites 认领 引用
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作者 Xia Jiang Yan-Xin Chen +5 位作者 Rui Chen Hao-Yan Shi Ke-Xian Li Wen-Ya Zhong Jian-Feng Li Can-Zhong Lu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第4期377-382,共6页
Thermo-photocatalytic CO2 conversion to C2 products exhibits high research value and industrial potential.Enhancing the catalyst's adsorption activation for CO2 and H2O,along with multistep proton-coup... Thermo-photocatalytic CO2 conversion to C2 products exhibits high research value and industrial potential.Enhancing the catalyst's adsorption activation for CO2 and H2O,along with multistep proton-coupled electron transfer(PCET)and C-C coupling,is crucial for achieving thermo-photocatalytic CO2 reduction conversion to C2 products with H2O as a proton source in a continuous process.In this paper,we explore a novel approach utilizing biochar to obtain catalysts with more defects and combine reducing biochar with MOF Materials(ZIF-67)to get a composite(ZIF-67/PC)with substantial CO2 and H2O adsorption activation capabilities and electron density gradients.Compared to PC and ZIF-67,the ZIF-67/PC exhibited excellent catalytic performance,particularly in obtaining a certain amount of C2 products(yield 5.59μmol g-1h-1,selectivity 55.96%).We also investigated the structure-function relationship of the catalyst and the contributions of thermal and light effects to the catalytic reaction,aiming to guide the establishment of efficient,high-throughput catalytic CO2 conversion technologies. 展开更多
关键词 Biochar ZIF-67 Thermo-photocatalytic CO2conversion Continuous process C2products
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A copper(Ⅰ)-coordinated PEDOT polymer enabling fast iodine conversion and dendrite-free Zn deposition for durable Zn-I2 batteries 认领 引用
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作者 Zhanrui Zhang Yibo Wang +5 位作者 Jing Li Xuexia He Qi Li Jie Sun Zonghuai Liu Zhibin Lei 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第7期223-233,I0007,共11页
Aqueous zinc-iodine batteries(ZIBs)have attracted considerable attention as promising candidates for future grid-scale energy storage.However,their practical application is hindered by several challenges,including slu... Aqueous zinc-iodine batteries(ZIBs)have attracted considerable attention as promising candidates for future grid-scale energy storage.However,their practical application is hindered by several challenges,including sluggish iodine conversion kinetics,polyiodide shuttle effects,and uncontrolled zinc dendrite growth.Herein,we report a conductive poly(3,4-ethylenedioxythiophene)polymer with Cu+coordination(denoted as Cu-PEDOT)to simultaneously enhance iodine conversion kinetics and regulate zinc deposition behavior.The coordination of Cu+with sulfur atoms on thiophene rings strengthens the interactions between I2 and PEDOT,accelerates I-/I0 conversion,and suppresses polyiodide formation.As a result,the I2-loaded Cu-PEDOT cathode(I2-Cu-P)delivers a specific capacity of 207 mA h g-1(0.1 A g-1)and retains at 79 mA h g-1 after 15,000 cycles at 5 A g-1.On the anode side,Cu+coordination reduces the Zn nucleation overpotential and guides zinc deposition preferentially along the horizontal direction of the(002)facets(Zn-Cu-P).Consequently,a Zn-Cu-P||I2-Cu-P full cell delivers more than twofold increase in energy density compared with the counterpart of Zn||I2-Cu-P using metallic zinc anode.These findings reveal that a coordination polymer,by introducing different transition metal ions,might become a promising host that can achieve rapid iodine conversion and dendrite-free zinc plating simultaneously. 展开更多
关键词 Zinc-iodine batteries Cu+coordination polymer Conductive PEDOT host Fast iodine conversion Uniform Zn deposition
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Unlocking the potential of metal halide perovskites for high-performance thermoelectric energy conversion through stable polymorphic phase mixing and electronic heterostructure 认领 引用
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作者 Mohammad-Reza Ahmadian-Yazdi Lifu Yan +2 位作者 Shangchao Lin Ge Fu Mojtaba Abdi-Jalebi 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期810-823,I0019,共14页
Metal halide perovskites(MHPs)have been accelerating next generation high performance solar cells due to their high charge carrier transport and optoelectronic properties.However,their thermoelectric properties fall b... Metal halide perovskites(MHPs)have been accelerating next generation high performance solar cells due to their high charge carrier transport and optoelectronic properties.However,their thermoelectric properties fall behind their optoelectronic counterparts,although they have ultralow thermal conductivities and are highly suitable for low grade heat harvesting.A major challenge is how to efficiently dope MHPs in order to achieve high electrical conductivities.As the state-of-the-art MHP for thermoelectric energy conversion,CsSnI3 shows unusual metallic behavior due to the intrinsic Sn vacancies,but it undergoes complex polymorphic phase transitions which hinders its carrier mobility.In this work,we report,for the first time,synthesis of a novel MHP-based thermoelectric device using bulk CsSnI3.This is achieved by leveraging stable polymorphic phase mixing(of orthorhombic and tetragonal phases)and electronic heterostructure.CsSnI3 synthesized by spark-plasma sintering with carbon fiber inclusion shows highly enhanced Seebeck coefficient of~250μV/K,resulting from successful control of the degree of polymorphic phase mixing.The CsSnI3 demonstrates high electrical conductivity of~8400 S/m,attributed to its high carrier mobility.Our approach to control the phase mixing suppresses lattice thermal conductivity to~0.4 W/(m K)through the phonon-boundary scattering.First-principle calculations of the two phases and the phase-interface confirm the strong effect of hybridization and reconstruction of structure at the interface of two phases,which decouples the Seebeck coefficient from electrical conductivity here.The optimized CsSnI3 achieves a power factor of 311μW/(m K2)and ZT of 0.27±0.04,the highest among all reported bulk MHPs.The MHP-based thermoelectric device operates stably across temperature differences of 40 to 260 K,delivering a power density of 3.5 W/m2.This work unlocks the potential of emerging MHPs for thermoelectric devices for low-grade heat harvesting.This could also enable synergistic cooperation between photovoltaic and thermoelectric effects in MHPs for more efficient renewable solar and thermal energy co-harvesting. 展开更多
关键词 Metal halide perovskite Thermoelectric energy conversion Polymorphic phase mixing First-principle density functional theory Electronic heterostructure
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