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Structural Modification and Deformable Design of Electrospun Sn@C Nanofiber Anodes Through Oxide Doping for Flexible Lithium-Ion Batteries 认领 引用
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作者 Yu Xin Jiaxiang Li +4 位作者 Zhiyan Wang Chang Miao Shi Pan Chengjin Liu Wei Xiao 《Rare Metals》 SCIE EI CAS CSCD 2026年第5期655-666,共12页
Size-controllable Sn nanoparticles are designed in this work via oxide doping to be uniformly embedded into flexible N-doped carbon nanofibers,in which the agglomeration and migration of Sn are effectively restrained ... Size-controllable Sn nanoparticles are designed in this work via oxide doping to be uniformly embedded into flexible N-doped carbon nanofibers,in which the agglomeration and migration of Sn are effectively restrained due to the suppressive effect of selected oxides,including SiO2,TiO2,and ZnO.Benefiting from unique merits of the embedment structure,such as ultrahigh aspect ratio,superior adhesion,and ideal stability,the flexible freestanding and highly robust electrode(Sn/TiO2@C,STC)is fabricated and exhibits a reversible specific capacity of 968.4 mAh g-1after 100 cycles at 0.1 A g-1.Moreover,the STC electrode contributes to a cycle lifespan of over 1000 cycles with a high specific capacity of 519.7 mAh g-1at 1.0 A g-1and a capacity decay as low as 0.00185%per cycle.Remarkably,practical application potential of the STC electrode was demonstrated by being assembled into a pouch cell,which not only works stably under bending states but also presents a specific capacity of 954.8 mAh g-1after 150 cycles at 0.1 A g-1.This composite fiber anode avoids extra use of polymer binder,current collector,and conductive additive,and exhibits a great potential in the practical application of flexible energy storage devices. 展开更多
关键词 deformable design lithium-ion battery nanofiber anode oxide doping structural modification
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Structural modification of mesoporous lanthanum oxide into 3D coral-like and nano needle-like structure for effective broadband microwave absorbing materials 认领 引用 被引量：2
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作者 Muzakkiy P.M.Akhir Ade Mulyawan +10 位作者 Okta Tiara Novitasari Rizky Ramadhani Didin S.Winatapura Anjar Anggraini Harumningtyas Suyanti Sari Hasnah Dewi Fatmawati Nurcahyani Firda Amalia Ramlan Murni Handayani Wisnu Ari Adi 《Journal of Rare Earths》 SCIE EI CAS CSCD 2025年第11期2500-2510,I0007,共11页
Structural modification of three dimensional(3D)materials for the application of dielectric loss-based microwave absorbing materials(MAMs)usually relies on intricate synthesis process and can pose challenges in terms ... Structural modification of three dimensional(3D)materials for the application of dielectric loss-based microwave absorbing materials(MAMs)usually relies on intricate synthesis process and can pose challenges in terms of scalability and mass production for practical application.In this work,we reported a successful attempt in modifying the 3D structure of mesoporous lanthanum oxide(La2O3)for effective broadband MAMs candidate via simple co-precipitation process.The inclusion of cetyltrimethylammonium bromide(CTAB)and hydrothermal aging treatment result in a significant transformation of La2O3particles from their original polygonal form to a 3D coral-like and nano needle-like structure.The utilization of CTAB and hydrothermal aging results in the increase of surface area and a two-fold increase in pore volume of the resulting La2O3.Due to its unique 3D structure,the 3D coral-like and nano needle-like La2O3materials possess a broadband electromagnetic(EM)wave absorption characteristic with the effective absorption bandwidth(EAB)covering the C-band frequency range.Specifically,in the La2O3C-H sample(with CTAB-with hydrothermal),it exhibits strong EM wave absorption with a reflection loss(RL)value of-33.07 dB which equals to 99.95%EM wave absorption at a thickness of only 1.50 mm.The detailed analysis of EM wave absorption properties reveals that the improvement of La2O3materials to attenuate EM wave energy arises from the dielectric loss phenomenon,the enhanced interfacial polarization,multiple reflections mechanism,and conduction loss mechanism induced by the 3D structural formation of the La2O3structure.This work proposes a novel and efficient approach in synthesizing and modifying 3D materials for effective broadband EM wave absorption. 展开更多
关键词 Mesoporous La2O3 Rare earths Hydrothermal aging treatment 3D structural modification electromagnetic wave absorbing properties Microwave absorbing materials
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Bridging chemical space and biological efficacy:advances and challenges in applying generative models in structural modification of natural products 认领 引用 被引量：1
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作者 Chuan-Su Liu Bing-Chao Yan +2 位作者 Han-Dong Sun Jin-Cai Lu Pema-Tenzin Puno 《Natural Products and Bioprospecting》 CSCD 2025年第4期75-91,共17页
Natural products(NPs)are invaluable resources for drug discovery,characterized by their intricate scaffolds and diverse bioactivities.Al drug discovery&design(AIDD)has emerged as a transformative approach for the ... Natural products(NPs)are invaluable resources for drug discovery,characterized by their intricate scaffolds and diverse bioactivities.Al drug discovery&design(AIDD)has emerged as a transformative approach for the rational structural modification of NPs.This review examines a variety of molecular generation models since 2020,focusing on their potential applications in two primary scenarios of NPs structure modification:modifications when the target is identified and when it remains unidentified.Most of the molecular generative models discussed herein are open-source,and their applicability across different domains and technical feasibility have been evaluated.This evaluation was accomplished by integrating a limited number of research cases and successful practices observed in the molec-ular optimization of synthetic compounds.Furthermore,the challenges and prospects of employing molecular generation modeling for the structural modification of NPs are discussed. 展开更多
关键词 Natural products Artificial intelligence Molecular generative models Structural modification
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Structural modifications and applications of orange peel pectin polysaccharides:a review of recent research advances 认领 引用
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作者 Bo-Han Jia Ling-Zhuo An +1 位作者 Xian-Ce Cao Hong-Yu Li 《Traditional Medicine Research》 2025年第8期44-56,共13页
Pectin is a natural polysaccharide with a complex structure consisting of linear and branched regions rich in galacturonic acid.The growing interest in orange peel pectin can be attributed to its abundant supply.Accor... Pectin is a natural polysaccharide with a complex structure consisting of linear and branched regions rich in galacturonic acid.The growing interest in orange peel pectin can be attributed to its abundant supply.According to statistics,about 10 million tons of orange peel waste are produced worldwide each year.Traditionally,the extraction and utilization of pectin have focused on its gelling,thickening,and stabilizing properties in food.However,as more and more research teams have found that pectin has good biocompatibility,biodegradability and easy chemical modification,its potential in drug delivery systems,tissue engineering,and wound healing is gradually being explored.This review focuses on orange peel pectin polysaccharides and discusses its traditional and modern extraction techniques,especially the advanced method of subcritical water extraction.This study also outlines the structural modifications of pectin such as methylation and acetylation,and introduces its antioxidant and anticancer biological activities and their emerging roles in the development of advanced biomaterials such as bone tissue engineering and fibre pad dressings. 展开更多
关键词 orange peel pectin extraction structural modification biomedical applications
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A review of structural modification and biological activities of oleanolic acid 认领 引用 被引量：5
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作者 YANG Huali DENG Minghui +4 位作者 JIA Hongwei ZHANG Kaicheng LIU Yang CHENG Maosheng XIAO Wei 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2024年第1期15-30,共16页
Oleanolic acid(OA),a pentacyclic triterpenoid,exhibits a broad spectrum of biological activities,including antitumor,antiviral,antibacterial,anti-inflammatory,hepatoprotective,hypoglycemic,and hypolipidemic effects.Si... Oleanolic acid(OA),a pentacyclic triterpenoid,exhibits a broad spectrum of biological activities,including antitumor,antiviral,antibacterial,anti-inflammatory,hepatoprotective,hypoglycemic,and hypolipidemic effects.Since its initial isolation and identification,numerous studies have reported on the structural modifications and pharmacological activities of OA and its derivatives.Despite this,there has been a dearth of comprehensive reviews in the past two decades,leading to challenges in subsequent research on OA.Based on the main biological activities of OA,this paper comprehensively summarized the modification strategies and structureactivity relationships(SARs)of OA and its derivatives to provide valuable reference for future investigations into OA. 展开更多
关键词 Oleanolic acid Derivatives Pentacyclic triterpenoid Structural modification Biological activities
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Effect of fluence and ambient environment on the surface and structural modification of femtosecond laser irradiated Ti 认领 引用 被引量：3
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作者 Umm-i-Kalsoom Shazia Bashir +5 位作者 Nisar Ali M Shahid Rafique Wolfgang Husinsky Chandra S R Nathala Sergey V Makarov Narjis Begum 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第1期789-795,共7页
Under certain conditions, ultrafast pulsed laser interaction with matter leads to the formation of self-organized conical as well as periodic surface structures （commonly reffered to as, laser induced periodic surfac... Under certain conditions, ultrafast pulsed laser interaction with matter leads to the formation of self-organized conical as well as periodic surface structures （commonly reffered to as, laser induced periodic surface structures, LIPSS）. The purpose of the present investigations is to explore the effect of fsec laser fluence and ambient environments （Vacuum ＆ 02） on the formation of LIPSS and conical structures on the Ti surface. The surface morphology was investigated by scanning electron microscope （SEM）. The ablation threshold with single and multiple （N = 100） shots and the existence of an incubation effect was demonstrated by SEM investigations for both the vacuum and the 02 environment. The phase analysis and chemical composition of the exposed targets were performed by x-ray diffraction （XRD） and energy dispersive x-ray spectroscopy （EDS）, respectively. SEM investigations reveal the formation of LIPSS （nano ＆ micro）. FFT d-spacing calculations illustrate the dependence of periodicity on the fluence and ambient environment. The periodicity of nano-scale LIPSS is higher in the case of irradiation under vacuum conditions as compared to 02. Furthermore, the 02 environment reduces the ablation threshold. XRD data reveal that for the 02 environment, new phases （oxides of Ti） are formed. EDS analysis exhibits that after irradiation under vacuum conditions, the percentage of impurity element （A1） is reduced. The irradiation in the 02 environment results in 15% atomic diffusion of oxygen. 展开更多
关键词 LIPSS ablation threshold incubation coefficient structural modification
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Recent Developments in Doping and Structural Modification of Ceria-Based Catalysts 认领 引用 被引量：10
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作者 冯长根 樊国栋 《Journal of Rare Earths》 SCIE EI CAS 2005年第3期309-313,共5页
Recent development in the modification of ceria-based catalysts for exhaust gas treatment was reviewed with the dependence of redox properties on structural characters of materials. The doping of ceria with different ... Recent development in the modification of ceria-based catalysts for exhaust gas treatment was reviewed with the dependence of redox properties on structural characters of materials. The doping of ceria with different cations such as rare earth or transition metal oxides results in improvement of structural stability, catalytic function and resistance to sintering at high temperatures. Aging and reduction treatment at high temperatures promote ceria reduction and is beneficial for oxygen storage capacity of the three-way catalysts. Chemical filing technique is very effective in modifying the redox property in the low temperature regions. 展开更多
关键词 ceria-based oxides dopants structural modification redox aging chemical filing rare earths
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Optimal Structural Modifications of a Gun Tripod for Desired Natural Frequencies 认领 引用
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作者 王建中 周亚明 朵英贤 《Journal of Beijing Institute of Technology》 EI CAS 2004年第1期48-53,共6页
Sensitivity analysis and structural modification techniques are used to investigate the structural modifications of a machine gun tripod which suffers from severe vibration during firing due to the resonance. The fini... Sensitivity analysis and structural modification techniques are used to investigate the structural modifications of a machine gun tripod which suffers from severe vibration during firing due to the resonance. The finite element analysis and modal test techniques are used to determine the natural frequencies of the machine gun. The sensitivities of natural frequencies with respect to the structural parameters of the tripod are obtained by the method of sensitivity analysis, and they can be used as an indication for the structural modification of the tripod so as to shift the natural frequencies effectively. By the structural modification techniques, finally, the optimal structural modifications of the tripod for desired natural frequencies are made to avoid the resonance, and this optimal structural modification is verified by re-analysis of the modified structure and the vibration contrast between original structure and modified structure. The research resulted in a successful structural modification for desired natural frequencies, which can avoid the resonance and thereby greatly improve the shooting precision of the machine gun during firing. 展开更多
关键词 sensitivity analysis structural modification natural frequencies tripod
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Influence of Structural Modification on Work-hardening Behaviour of Type 316 Stainless Steel 认领 引用
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作者 K.G.Samuel S.L.Mannan and P.Rodriguez 《Journal of Materials Science & Technology》 SCIE EI CAS 1998年第5期399-401,共3页
Work-hardening behaviour of type 316 austenitic stainless steel having difFerent initial dislocation structures introduced by swaging to various levels is analysed by a simplified Kock's model which takes into acc... Work-hardening behaviour of type 316 austenitic stainless steel having difFerent initial dislocation structures introduced by swaging to various levels is analysed by a simplified Kock's model which takes into account the structural changes through the dislocation accumulation and annihilation process during deformation. The dislocation accumulation and annihilation factors show a temperature and structure dependence. The dislocation annihilation factor shows a plateau or decreasing tendency in the dynamic strain ageing (DSA) temperature range. This is attributed as either due to dislocation accumulation being more pronounced than dislocation annihilation or as due to precipitates being formed at DSA temperatures acting as obstacles to dislocation motion in the DSA temperature range. 展开更多
关键词 Work Influence of Structural Modification on Work-hardening Behaviour of Type 316 Stainless Steel
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Recent advances on the structural modification of parthenolide and its derivatives as anticancer agents 认领 引用 被引量：13
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作者 LIU Xingchen WANG Xiaobing 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2022年第11期814-829,共16页
Parthenolide(PTL)is a sesquiterpene lactone derived from medicinal plant feverfew(Tanacetum parthenium).Recent studies have demonstrated that it has multiple pharmacological activities,especially in the treatment of v... Parthenolide(PTL)is a sesquiterpene lactone derived from medicinal plant feverfew(Tanacetum parthenium).Recent studies have demonstrated that it has multiple pharmacological activities,especially in the treatment of various hematological and solid cancers.The superior anticancer activity of PTL suggests that it has the potential to be a first-line drug.However,due to the limited physical and chemical properties,as well as bioavailability,structural modification strategies are strongly recommended to improve the anticancer activity.This review describes representative PTL derivatives obtained by different modification strategies,which are reported to exert antiproliferative activities superior to the parent compound PTL.Furthermore,we also summarize their basic mechanisms on cancer-related signaling pathways,so as to explain the potential and characteristics of PTL and its derivatives in cancer therapy. 展开更多
关键词 Parthenolide Derivatives Structural modification Anticancer mechanisms
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Structural Modification for Antitumor Nitrogenous Steroids 认领 引用 被引量：2
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作者 谢田鹏 杨康 +3 位作者 张立志 陈德胜 邹坤 黄年玉 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2017年第12期2007-2019,共13页
Natural steroids have been showing notable cytotoxic activities, which are quite interesting lead compounds for the development of anticancer drug including estramustine and prednimustine. Considering that these semi-... Natural steroids have been showing notable cytotoxic activities, which are quite interesting lead compounds for the development of anticancer drug including estramustine and prednimustine. Considering that these semi-synthetic molecules are nitrogen mustard functionalized steroidal derivatives, the present review is focused on the methodologies of introducing nitrogen atom or nitrogen-containing heterocycles on A^D rings or side chains of steroids, and analysis of the structure-activity relationship（SAR） for these man-made cytotoxic steroids. 展开更多
关键词 steroids structural modification N-hetercycles antitumor structure-activity relationship
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Recent Progress in Structural Modification and Activities on Panax notoginseng Saponins 认领 引用 被引量：1
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作者 Jinna ZHOU Xiaorong ZHOU +2 位作者 Cheng ZOU Mu WANG Hong YU 《Medicinal Plant》 2022年第4期90-98,共9页
This paper reviews recent progress in the structural modification and activities on Panax notoginseng saponins(PNS).PNS can not only improve the function of cardio-cerebral system,central nervous system and immune sys... This paper reviews recent progress in the structural modification and activities on Panax notoginseng saponins(PNS).PNS can not only improve the function of cardio-cerebral system,central nervous system and immune system,but also reveal anticancer,anti-aging and anti-oxidation activities.In order to solve the problem of low bioavailability and poor absorbability of PNS in vivo,usually,the researchers modified the structure of PNS with three methods:glycoside cleavage(including acid hydrolysis,sulfation,etc.),biotransformation method(including enzyme hydrolysis,microbial transformation)and combinatorial chemical method.It was found that the structural modification sites of PNS were single,mainly aimed at C-3,C-6 and C-20,which provided a new perspective for the structural modification of PNS.Therefore,structural modification on PNS with high yield and ready availability are significant in the discovery of new active ingredients and industrialization.Derivatives of PNS are applied to research of structure-activity relationship,which is beneficial to the development of new medicines. 展开更多
关键词 Panax notoginseng saponins Structural modification Activities
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Structural Modification of 8-Methoxypsoralen via Ceric Ammonium Nitrate (CAN) mediated Reactions 认领 引用
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《厦门大学学报（自然科学版）》 CAS 北大核心 1999年第S1期268-268,共1页
关键词 CAN Structural Modification of 8-Methoxypsoralen via Ceric Ammonium Nitrate
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Boosting Li+Diffusion in Lithium‑Rich Oxides through Intrinsic Structural Design:Insights and Design Principles 认领 引用
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作者 Lifeng Xu Min Hong +6 位作者 Jingjing Guo Fangming Shen Da Xu Jinjian Zhang Ying Zhang Jianhui Zheng Jun Lu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第8期442-476,共35页
Lithium-rich oxide cathodes present high specific capacities(>250 mAh g−1)and wide operating voltage windows(2.0-4.8 V),making them promising candidates for nextgeneration high-energy batteries.Their practical d... Lithium-rich oxide cathodes present high specific capacities(>250 mAh g−1)and wide operating voltage windows(2.0-4.8 V),making them promising candidates for nextgeneration high-energy batteries.Their practical deployment,however,is limited by sluggish ion transport kinetics that arise from inherent structural constraints,including confined twodimensional diffusion channels,transition metal migration,and local lattice distortions.These structural perturbations narrow Li+pathways,intensify cation mixing,and generate localized strain fields,collectively increasing the Li+migration energy barrier.To facilitate the rational design of fast-kinetic lithium-rich oxides through intrinsic structural optimization,a comprehensive elucidation of the structure-diffusion interplay is presented,with emphasis on the roles of lattice distortion and oxygen redox chemistry in modulating Li+pathways and associated energy barriers.Structural design strategies that aim to improve ionic diffusivity are systematically evaluated,including interface engineering,morphology-directed design,and the modulation of redox chemistry.Advanced operando characterization techniques that capture dynamic structural and chemical evolution are also described as essential tools for guiding precise structure-performance analysis.The mechanistic insights and integrated analytical approaches summarized in this review establish a robust conceptual foundation for engineering lithium-rich oxides with enhanced ion transport kinetics,thereby supporting the advancement of next-generation high-power battery technologies. 展开更多
关键词 Li-rich oxides Li+diffusion Structural modification In situ characterization
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Exploring potential for semiconductor to quantum anomalous Hall insulator transitions via substrate-induced structural modifications in Ti3Se4monolayers 认领 引用
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作者 Zhipeng Song Haixia Cheng +14 位作者 Yun Cao Qi Zheng Yurou Guan Chen Liu Jierui Huang Li Huang Jiaou Wang Hui Guo Guangchao Chen Chengmin Shen Shixuan Du Hongliang Lu Wei Ji Xiao Lin Hong-Jun Gao 《Nano Research》 SCIE EI CSCD 2025年第3期605-610,共6页
The quantum anomalous Hall(QAH)effect in two-dimensional(2D)topological materials has attracted widespread attention due to its potential for dissipationless chiral edge transport without an external magnetic field,wh... The quantum anomalous Hall(QAH)effect in two-dimensional(2D)topological materials has attracted widespread attention due to its potential for dissipationless chiral edge transport without an external magnetic field,which is highly promising for low-power electronic applications.However,identifying materials that exhibit these properties remains particularly challenging,as only a limited number of such materials are known,raising the intriguing question of whether it is possible to induce the QAH effect in materials with ordinary properties through structural modifications.In this work,we grow an unreported 2D titanium selenide(Ti3Se4)on a Cu(111)substrate using molecular beam epitaxy.Low-energy electron diffraction and scanning tunneling microscopy characterizations reveal a√7×√7 brick-like structure.First-principles calculations and X-ray photoelectron spectroscopy measurements confirm its composition to be Ti3Se4.Our calculations further demonstrate that monolayer Ti3Se4,in its grown form on Cu(111),has the potential to host the QAH effect.Interestingly,when we examine its freestanding form,the monolayer transitions from a QAH insulator candidate into a conventional semiconductor,despite only minor differences in their atomic structures.This transition enlightens us that subtle lattice adjustments can induce a transition from semiconductor to QAH properties in freestanding Ti3Se4.This discovery provides a potential route to engineering practical materials that may exhibit the QAH effect. 展开更多
关键词 quantum anomalous Hall(QAH)effect monolayer Ti3Se4 structural modifications semiconductor molecular beam epitaxy
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Recent advances in structural modification on graphitic carbon nitride(g-C3N4)-based photocatalysts for high-efficiency photocatalytic H2O2production 认领 引用 被引量：13
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作者 Feng Ming Yap Grayson Zhi Sheng Ling +2 位作者 Brenden Jing Su Jian Yiing Loh Wee-Jun Ong 《Nano Research Energy》 2024年第1期101-151,共51页
To date,extensively high demand for hydrogen peroxide(H2O2)has been predominantly supplied by the anthraquinone process for several worldwide applications,encompassing wastewater treatment,environmental remediat... To date,extensively high demand for hydrogen peroxide(H2O2)has been predominantly supplied by the anthraquinone process for several worldwide applications,encompassing wastewater treatment,environmental remediation,and chemical synthesis.However,the compacted manufacturing,massive energy input and the release of tremendous wastes have restricted commercialization feasibility.Regards to mitigate such issues,the photocatalytic H2O2production by utilizing g-C3N4catalysts has endowed a greener,sustainable and promising alternative,considering that it involves water and oxygen as reactants in the present of sunlight as energy input.Herein,we have manifested a comprehensive overview of the research progress for g-C3N4-based semiconductors for photocatalytic H2O2generation.This review has systematically elucidated state-of-the-art development of different modifications on g-C3N4to unravel the fundamental mechanism of H2O2evolution via oxygen reduction reaction(ORR)and water oxidation reaction(WOR).In addition,the contribution made by vacancy introduction,doping,heterogenization,and co-catalyst passivation with respect to photoefficiency enhancement have been clarified.Furthermore,the current challenges and perspective of future development directions on photocatalytic H2O2production have also been highlighted.As such,g-C3N4stands as the next step toward advancement in the configuration and modulation of high-efficiency photocatalysts. 展开更多
关键词 photocatalysis g-C3N4 H2O2production structural modification
The interaction of carbon nanotubes(CNTs)with CuCoO2 nanosheets promotes structural modification and enhances their OER performance 认领 引用
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作者 Shiyu Ma Chao Jiang +6 位作者 Jilin Bai Li Sun Hao Tan Lifeng Liu Xianwei Zeng Xiujian Zhao Dehua Xiong 《Inorganic Chemistry Frontiers》 SCIE EI 2024年第12期3482-3493,共12页
In this study,carboxylated multi-walled carbon nanotubes(CNTs)were utilized to address the challenges of inherent conductivity mismatch of CuCoO2catalysts.CNT-supported CuCoO2nanosheets(CCO/xCNT,x=25,50,and 75)w... In this study,carboxylated multi-walled carbon nanotubes(CNTs)were utilized to address the challenges of inherent conductivity mismatch of CuCoO2catalysts.CNT-supported CuCoO2nanosheets(CCO/xCNT,x=25,50,and 75)were successfully synthesized through a one-step hydrothermal method.The introduction of CNTs can reduce the thickness of CuCoO2to 25 nm due to the interaction between the CNTs and CuCoO2,change the electronic structure,and increase the O-Co bond length and oxygen vacancy(VO)concentration of CuCoO2.These microstructure modifications significantly enhance the binding affinity between CuCoO2and OH-.The OER measurements of CCO/xCNT(x=25,50,and 75)electrocatalysts reveal that adding 50 wt%CNTs into the sample(CCO/50CNT)yields the best catalytic performance,which shows a low overpotential of only 343 mV at 10 mA cm-2and a small Tafel slope of 65 mV dec-1.Additionally,CCO/50CNT also exhibits excellent structural and compositional stability.The density functional theory(DFT)calculations and pH dependence experiments show that the introduction of CNTs can generate VO,which initiates lattice oxygen and facilitates both the Adsorption Evolution Mechanism(AEM)and the Lattice Oxygen Mechanism(LOM)on the catalyst surface during the OER process.A simple and general strategy is used to modify the catalyst microstructure and influence its OER mechanism,which helps to improve the OER performance of delafossite type metal oxides and even bimetallic oxides. 展开更多
关键词 oxygen vacancy carbon nanotubes oxygen evolution reaction cucoo change electronic structureand electronic structure structural modification CuCoO carbon nanotubes cnts
Enhanced cycle performance and air stability in Ti-doped P2-type layered oxide enabled by crystal structure modification and Jahn–Teller effect tailoring 认领 引用
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作者 Jin-Pin Wu Quan-Feng Dong +8 位作者 Zong-Yu Guan Shuo Li Yuan-Yuan Liu Jia-Qing Wang Zi-Teng Jian Jun-Hang Tian Xue-Yi Sun Bi-Wei Xiao Wei-Dong Zhuang 《Rare Metals》 SCIE EI CAS CSCD 2025年第12期9963-9974,共12页
Layered oxide cathode materials have attracted significant attention due to their high energy density.However,their practical commercialization in sodium-ion batteries has been hindered by drawbacks such as poor air s... Layered oxide cathode materials have attracted significant attention due to their high energy density.However,their practical commercialization in sodium-ion batteries has been hindered by drawbacks such as poor air stability and cycle performance.Herein,we present a simple strategy to address these obstacles through Ti doping.Interestingly,Ti doping can increase the Na layer spacing while decreasing the transition metal layer spacing.The modified interlayer space ensures a greater Na+diffusion coefficient and improved rate performance.Moreover,the high-spin Mn3+content decreases after Ti doping,which mitigates the Jahn-Teller effect and improves structural stability.As a result,the Na0.55Ni0.1Fe0.1Mn0.65Ti0.15O2 cathode material delivers a capacity retention of 77.11%after 150 cycles at 1C,which is much higher than 55.02%of Na0.55Ni0.1Fe0.1Mn0.8O2.Meanwhile,the air stability evaluation reveals that carbon dioxide and water promote the formation of the hydrate phase.Ti doping can inhibit the exchange of H+and Na+,as well as the formation of residual sodium species.Furthermore,the electrochemical performance deterioration caused by the water will be alleviated.These findings provide valuable insight into the development of layered oxide cathode materials with needed cycling performance and air stability for the commercialization of SIBs. 展开更多
关键词 Sodium-ion battery Layered oxides Crystal structure modification Jahn-Teller effect Air stability Cycle performance
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Phloretin targeting the 3CLpro Cys144 exhibits broad-spectrum antiviral activity against swine enteric coronavirus 认领 引用
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作者 Jiawei Xiao Donghua Guo +17 位作者 Xiaoxu Xing Limin Jiang Shanshan Qi Jun Wang Wenfei Bai Shiping Yu Fanbo Shen Xingyang Guo Xinglin Wang Wei Zhou Hansong Li Feiyu Zhao Li Feng Jialin Zhang Yaru Xu Dan Yang Haixin Liu Dongbo Sun 《Virologica Sinica》 SCIE CAS CSCD 2026年第1期208-226,共19页
Swine enteric coronaviruses(SECoVs)cause severe watery diarrhea and high mortality in piglets,resulting in significant economic losses to the global pig industry.However,frequent mutations in SECoVs significantly comp... Swine enteric coronaviruses(SECoVs)cause severe watery diarrhea and high mortality in piglets,resulting in significant economic losses to the global pig industry.However,frequent mutations in SECoVs significantly compromise vaccine-induced immunity and limit cross-protection against emerging variants.Therefore,there is an urgent need to develop new broad-spectrum antiviral drugs to be the last line of defense to supplement vaccine immunity.In this study,we utilized molecular docking and molecular dynamics simulations to identify phloretin as a broad-spectrum SECoV inhibitor.Phloretin has demonstrated prophylactic and therapeutic efficacy in vitro and in vivo,improving the survival of SECoV-infected piglets.It was further found that phloretin exerts a broad-spectrum antiviral effect by acting on the conserved 3CLpro Cys144 site of three SECoVs.It is worth noting that derivative A12,designed on the basis of the structure-activity relationship(SAR)between phloretin and 3CLpro,showed a 15.7,2.6,and 8.4-fold increase in antiviral effect against porcine epidemic diarrhea virus(PEDV),transmissible gastroenteritis virus(TGEV),and porcine delta coronavirus(PDCoV),respectively.This study reveals a 3CLpro Cys144 targeting broad-spectrum strategy for use against SECoVs,providing a candidate drug to bridge the vaccine immunity gap. 展开更多
关键词 Phloretin Swine enteric coronaviruses 3C-like protease Broad-spectrum antiviral Structural modification
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Research progress of 3-n-butylphthalide and its derivatives in combating cerebral ischemia 认领 引用
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作者 Hongwei Zheng Yangyang Jiang +7 位作者 Kai Wang Xiao Liu Zihan Jia Xing Su Yanan Zhang Yihua Zhang Zhangjian Huang Yong Ling 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2026年第1期13-22,共10页
Ischemic stroke(IS)presents a major threat to human life and health due to its high disability and mortality rates.3-n-Butylphthalide(NBP),derived from celery seeds of the Apiaceae family native to the Mediterranean r... Ischemic stroke(IS)presents a major threat to human life and health due to its high disability and mortality rates.3-n-Butylphthalide(NBP),derived from celery seeds of the Apiaceae family native to the Mediterranean region,was first introduced in China for acute IS treatment in 2004.NBP demonstrates multiple therapeutic actions,including reconstruction of microcirculation in the cerebral ischemia area,inhibition of platelet aggregation,reduction of cerebral infarction volume,maintenance of blood-brain barrier(BBB)integrity,and enhancement of cerebral blood perfusion.However,its overall efficacy remains moderate,limited by poor water solubility and low bioavailability,which constrains its clinical application.To address these limitations,researchers have actively pursued the development of NBP derivatives and analogs,achieving notable progress.These efforts,including substituent introduction,ring opening derivatization,esterification,and atom substitution,have generated diverse NBP derivatives.Several of these derivatives have advanced to clinical studies.Specifically,potassium 2-(1-hydroxypentyl)-benzoate(PHPB),brozopentyl sodium(BZP),and XY-03-EA(ZONK1103)have reached phase II clinical trials,while(S)-2-(1-acetoxypentyl)benzoic acid L-arginine salt(AAPB)has received clinical trial approval for 2024.This review examines the structural modification and optimization of NBP over the past two decades from a medicinal chemistry perspective,aiming to facilitate the development of superior derivatives and advance cerebral ischemia treatment. 展开更多
关键词 Ischemic stroke 3-n-Butylphthalide Derivatives Structural modification Cerebral ischemia
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