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Structural engineering of MXenes towards high electrochemical performance in supercapacitors 认领 引用 被引量：1
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作者 Yan Liu Kaiyang Guo +4 位作者 Yuanmeng Ge Wenzheng Yan Kai Gu Yapeng Tian Xinwei Cui 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2025年第8期1783-1812,共30页
Supercapacitors(SCs)stand out among various energy storage devices owing to their high power density and long-term cyc-ling stability.As new two-dimensional material,MXenes have become a research hotspot in recent yea... Supercapacitors(SCs)stand out among various energy storage devices owing to their high power density and long-term cyc-ling stability.As new two-dimensional material,MXenes have become a research hotspot in recent years owing to their unique structure and rich surface functional groups.Compared with other materials,MXenes are more promising for SCs owing to their tunable precurs-ors,structural stability,and excellent electrical conductivity.However,the rate performance and electrochemical reaction activity of MXene materials are poor,and stacking severely limits their application.Therefore,various modification strategies are employed to im-prove the electrochemical performance of MXene materials.As the modification strategy of MXene electrode materials often involves in-creasing the number of ion transport channels to expose more active sites,the packing density is also affected to different degrees.There-fore,achieving a balance between high volumetric capacitance and rapid ion transport has become a key issue for the application of MXene-based SCs in wearable devices and microdevices.In this paper,the latest progress in the preparation methods and modification strategies of MXenes in recent years is reviewed with the aim of achieving both high volumetric capacitance and high ion transport for ex-panding the application of MXene-based SCs in microdevices and wearable devices. 展开更多
关键词 MXenes structural engineering electrochemical performance supercapacitor
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Structural engineering and high entropy effect toward improved mechano-electrochemical performance in lithium batteries 认领 引用 被引量：1
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作者 Hao-Yu Xu Rui Wang +6 位作者 Feng-Feng Dong Zheng Yang Dong-Yun Li Yang Xu Hong-Liang Ge Ming-Jian Yuan Qiao-Ling Kang 《Rare Metals》 SCIE EI CAS CSCD 2025年第9期6040-6052,共13页
The inferior structure/electrochemistry stability due to the volume expansion and the less lithium storage active sites of transition metal oxide (TMO) are critical issue hindering their commercialization.The rational... The inferior structure/electrochemistry stability due to the volume expansion and the less lithium storage active sites of transition metal oxide (TMO) are critical issue hindering their commercialization.The rational design to utilize the combined advantages of both structure and composition is a key strategy to address these challenges.Here,the (FeCoNiMnCrMg)2O3high entropy oxide(HEO) with different morphologic structures are developed through integrating molecule and microstructure engineering.The morphologic structure of high entropy oxide transforms from solid spheres to multishelled core-shell spheres,and then to hollow spheres,which is governed by a thermally induced non-uniform shrinkage process coupled with Kirkendall effect diffusion due to the different calcination temperature.Even with the incorporation of various metallic ions,the high entropy oxide with a homogeneous single-phase solid solution maintained their shape and uniformity in size due to the ability of metal ions to coexist on the same lattice point.Benefiting from the meticulous control of both compositional and geometric factors,the hollow high entropy oxide exhibited a significantly high specific capacity (1722.1 mAh g-1after 200cycles at 1 A g-1) and long-life span for lithium storage(2158.7 mAh g-1over 900 cycles at 4 A g-1).The collaborative lattice and consistent volume demonstrated in this study offer significant potential in directing the development of materials for advanced energy storage solutions. 展开更多
关键词 Structural engineering High entropy effect High-entropy oxides Lithium batteries Anode material
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Surface structural engineering of carbonyl iron powder for enhancing microwave absorption and anti-oxidation performance 认领 引用 被引量：4
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作者 Ming-Lu Huang Cheng-Long Luo +3 位作者 Chang Sun Kun-Yan Zhao Yingqing Ou Ming Wang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2024年第11期201-209,共9页
Surface structural engineering is desirable in modifying the surface performance of carbonyl iron powder(CIP)to enhance microwave absorption(MA)and anti-oxidation performance.Herein,the surface shape-dependent CIP abs... Surface structural engineering is desirable in modifying the surface performance of carbonyl iron powder(CIP)to enhance microwave absorption(MA)and anti-oxidation performance.Herein,the surface shape-dependent CIP absorbers are designed via surface coating with zinc oxide(ZnO)nanoparticles and then a thermal annealing treatment.The morphology of ZnO nanoparticles which can be easily regulated by controlling the annealing temperature ultimately affects the MA performance of CIP coating with ZnO nanoparticles(CIP@ZnO).The core-shell CIP@ZnO particles with cubic cone ZnO nanoparticles exhibit ex-cellent MA performance and thermal stability in comparison to the original CIP.Specifically,the CIP@ZnO annealed at 350 ℃(CIP@ZnO-350)samples which have the cubic cone ZnO nanoparticles exhibit a min-imum reflection loss(RLmin)of-55.35 dB at a thickness of 2.1 mm and a maximum effective absorp-tion bandwidth(EAB)of 7.09 GHz at a thickness of 2.0 mm.In addition,the antioxidant property of the CIP@ZnO composite particles is abruptly enhanced,which breaks the restriction of the application of CIP at high temperatures.The superior MA performance of CIP@ZnO particles with cubic cone ZnO nanoparti-cles comes from the enhancement in surface shape-dependent multiple microwave scattering,interfacial polarization,and electromagnetic-dielectric synergism between ZnO and CIP. 展开更多
关键词 Microwave absorption Carbonyl iron powder Anti-oxidation Interfacial polarization Surface structural engineering
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Structural engineering of Fe single-atom oxygen reduction catalyst with high site density and improved mass transfer 认领 引用 被引量：3
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作者 Jiawen Wu Yuanzhi Zhu +3 位作者 An Cai Xiaobin Fan Wenchao Peng Yang Li 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第11期634-644,共11页
Fe-N-C catalysts are widely considered as promising non-precious-metal candidates for electrocatalytic oxygen reduction reaction(ORR),Yet despite their high catalytic activity through rational modulation,challenges re... Fe-N-C catalysts are widely considered as promising non-precious-metal candidates for electrocatalytic oxygen reduction reaction(ORR),Yet despite their high catalytic activity through rational modulation,challenges remain in their low site density and unsatisfactory mass transfer structure.Herein,we present a structural engineering approach employing a soft-template coating strategy to fabricate a hollow and hierarchically porous N-doped carbon framework anchored with atomically dispersed Fe sites(FeNCh) as an efficient ORR catalyst.The combination of hierarchical porosity and high exterior surface area is proven crucial for exposing more active sites,which gives rise to a remarkable ORR performance with a half-wave potential of 0.902 V in 0.1 m KOH and 0.814 V in 0.1 m HClO4,significantly outperforming its counterpart with solid structure and dominance of micropores(FeNC-s).The mass transfer property is revealed by in-situ electrochemical impedance spectroscopy(EIS) measurement.The distribution of relaxation time(DRT) analysis is further introduced to deconvolve the kinetic and mass transport processes,which demonstrates an alleviated mass transport resistance for FeNC-h,validating the effectiveness of structural engineering.This work not only provides an effective structural engineering approach but also contributes to the comprehensive mass transfer evaluation on advanced electrocatalyst for energy conversion applications. 展开更多
关键词 Single-atom catalysts Oxygen reduction reaction Structural engineering Active site density Mass transfer Zinc-air batteries
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Structural engineering of Sb-based electrode materials to enhance advanced sodium-ion batteries 认领 引用 被引量：3
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作者 Zheng Yang Qiao-Ling Kang +3 位作者 Rui-Wang Li-Jing Yan Xian-He Meng Ting-Li Ma 《Rare Metals》 SCIE EI CAS CSCD 2024年第10期4777-4806,共30页
Antimony(Sb)is recognized as a potential electrode material for sodium-ion batteries(SIBs)due to its huge reserves,affordability,and high theoretical capacity(660 mAh·g-1).However,Sb-based materials experience... Antimony(Sb)is recognized as a potential electrode material for sodium-ion batteries(SIBs)due to its huge reserves,affordability,and high theoretical capacity(660 mAh·g-1).However,Sb-based materials experience significant volume expansion during cycling,leading to comminution of the active substance and limiting their practical use in SIBs.Therefore,the volume expansion issue of Sb-based materials during charging/discharging must be solved to create high-performance SIBs.This paper presents a detailed review of structural engineering of Sb-based electrode materials,focusing on the performance effects of different kinds of structures on advanced performance SIBs.Finally,the future development and the challenges of Sb-based materials are prospected.This paper can provide specific perspectives on the structure construction and optimization of Sb-based anode materials so as to promote the rapid development and practical applications of SIBs. 展开更多
关键词 Sb-based electrode Sodium-ion batteries Structural engineering
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Leaf-inspired graphene/MnO networks encapsulating Co nanoparticles through micro-nano-structural engineering for enhanced photo-stimulated rechargeable Zn-air batteries 认领 引用
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作者 Peitao Liu Zihan Zhang +2 位作者 Chongyang Yang Junming Zhang Daqiang Gao 《Inorganic Chemistry Frontiers》 SCIE EI CAS CSCD 2026年第8期3401-3409,共9页
Harnessing solar energy to modulate light absorption ability and carrier separation efficiency is a highly promising strategy for enhancing oxygen photoelectrocatalytic reactions;however,it poses significant challenge... Harnessing solar energy to modulate light absorption ability and carrier separation efficiency is a highly promising strategy for enhancing oxygen photoelectrocatalytic reactions;however,it poses significant challenges.In this study,inspired by the network and structural properties of natural leaves,a leaf-like topological network is engineered via a micro-nano-structure design.A MnO/Co heterojunction is anchored on the network,exhibiting strong interfacial coupling that promotes electron-hole separation,subsequently exhibiting improved photoelectrocatalytic performance.Consequently,the MnO/Co@N-C catalyst achieves an oxygen evolution reaction(OER)overpotential of 1.42 V at a current density of 10 mA cm−2 under illumination,which is significantly lower than the 1.52 V obtained under dark conditions.Furthermore,a Zn-air battery(ZAB)with a MnO/Co@N-C air cathode demonstrates a power density of 189 mW cm−2 under illumination,which is 33.1%higher than that without illumination.Remarkably,the round-trip efficiency of the MnO/Co@N-C-based ZAB increases from 55.6%to 64.1%under illumination,while its cycling stability increases by approximately 66.7%from 150 h to 250 h.Density-functional theory calculations and multiple photonic spectroscopy analyses demonstrate that the synergistic interactions between MnO and Co significantly enhance the electron transfer rate and electron-hole separation,thus promoting excellent catalytic activity.The findings of this study open a new avenue for enhancing OER/oxygen reduction reaction(ORR)bifunctional electrocatalysis and present an effective strategy for improving the efficiency of ZABs. 展开更多
关键词 micro nano structural engineering solar energy carrier separation efficiency photo stimulated rechargeable Zn air batteries interfacial coupling enhancing oxygen photoelectrocatalytic reactionshoweverit graphene MnO networks leaf inspired
Cross-scale structural engineering of MOF-derived CoxNiy@C nanorods with controllable electromagnetic response behavior for broadband electromagnetic wave absorption 认领 引用 被引量：2
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作者 Bo Huang Fang Ye +5 位作者 Jingwen Deng Jingchao Wang Chen Li Yuchen Cao Wenjing Zhang Xiaomeng Fan 《Journal of Advanced Ceramics》 SCIE EI CAS CSCD 2026年第2期37-49,共13页
Metal‒organic framework(MOF)derivatives employed as electromagnetic wave(EMW)absorption materials have gained considerable attention because of their plentiful coordination components and diverse nanomicrostructures.H... Metal‒organic framework(MOF)derivatives employed as electromagnetic wave(EMW)absorption materials have gained considerable attention because of their plentiful coordination components and diverse nanomicrostructures.However,achieving broadband EMW absorption solely through nanoscale structural design remains challenging.Herein,a cross-scale structural engineering strategy is proposed to address this limitation.At the nanomicroscale,MOF-derived CoxNiy@C nanorods were fabricated via a solvothermal and pyrolysis process.Systematic manipulation of the built-in electric field(BIEF)heterointerface achieved through adjusting the Co/Ni atomic ratio significantly promotes electron-directed migration,alters the spatial charge distribution,and ultimately enhances the polarization relaxation and magnetic resonance effects,resulting in superior EMW absorption performance(the effective absorption bandwidth of Co2Ni@C is 4.9 GHz at 1.75 mm).The geometric configuration of the electromagnetic metastructures was subsequently optimized via CST software.Through cross-scale structural design,the simulated gradient honeycomb structure metamaterial composed of Co2Ni@C achieves multiband compatibility,and the EAB reaches 38 GHz(covering 2-40 GHz)with a total thickness of 15 mm.This research elucidates the BIEF loss mechanism of MOF-derived CoxNiy@C composites by rationally controlling the Co/Ni atomic ratio and provides novel insights into the structural design of electromagnetic nanomaterials. 展开更多
关键词 metal−organic framework derivatives CoxNiy@C nanorods structure engineering electromagnetic synergistic electromagnetic wave absorption
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Structural design and engineering of organic electrode materials with redox availability for advanced aqueous zinc-ion batteries:A review 认领 引用
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作者 Yuze Ding Zhangjiashuo Qian +3 位作者 Hongzhou Dong Fu Yang Jun Yang Minjie Shi 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第3期231-254,共24页
Aqueous zinc-ion batteries(AZIBs)are a promising alternative to lithium-ion batteries due to their safety,environmental compatibility,and cost-effectiveness.The development of advanced electrode materials is crucial f... Aqueous zinc-ion batteries(AZIBs)are a promising alternative to lithium-ion batteries due to their safety,environmental compatibility,and cost-effectiveness.The development of advanced electrode materials is crucial for realizing their potential.Organic electrodes,with their structural diversity,renewability,and reversible Zn2+storage mechanism,offer significant advantages over inorganic materials.However,challenges such as slow electron transfer,dissolution in electrolytes,and limited active sites hinder their widespread use.This review systematically categorizes and evaluates major classes of organic electrode materials,including carbonyl compounds,imine compounds,conductive polymers,and covalent organic frameworks(COFs),highlighting their inherent electrochemical properties and corresponding strategies for performance optimization.It offers a thorough review and synthesis of recent advancements aimed at improving key electrochemical metrics,such as specific capacity,rate capability,and cycling stability.Detailed analysis is provided on critical modification techniques,encompassing molecular structure engineering,hybridization with conductive carbon matrices,and nano structural optimization.Illustrative case studies further demonstrate the effectiveness and mechanistic insights of these approaches.Finally,the review outlines future research directions for organic electrodes in AZIBs,addressing challenges like scalable production,cost efficiency,and sustainability.By consolidating these insights,this work seeks to guide the development of highperformance organic electrode-based AZIBs. 展开更多
关键词 Organic electrodes Aqueous zinc-ion batteries Redox-active groups Electrochemical performance Structural engineering
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Structural regulation and interface engineering in silicon-based anodes for high-energy-density lithium-ion batteries:A comprehensive review 认领 引用
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作者 Xin Xiao Jinping Xu +9 位作者 Cheng Zhang Meina Huang Yijun Miao Junjun Yao Xin Lin Shize Geng Taiyu Lyu Yifei Wu Dechao Wang Zhifeng Zheng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第2期327-364,I0009,共38页
Silicon(Si)-based anodes have emerged as promising candidates for the next-generation lithium-ion batteries(LIBs)due to their high theoretical capacity(4200 mAh g-1).However,their further application is hindered by... Silicon(Si)-based anodes have emerged as promising candidates for the next-generation lithium-ion batteries(LIBs)due to their high theoretical capacity(4200 mAh g-1).However,their further application is hindered by critical challenges,including severe volume expansion(~300%),formation of unstable solid electrolyte interphase(SEI),and inherently low conductivity.While extensive research has sought to alleviate the substantial internal stress caused by volume expansion through the rational design of Si-based anode structures,the underlying mechanisms that govern these improvements remain insufficiently understood,leaving significant gaps in mechanical and interface electrical failure.To build a comprehensive understanding relationship between structural design and performance enhancement of Si-based anodes,this review first analyzes the characteristics of various Sibased anode structures and their associated internal stresses.Subsequently,it summarizes effective strategies to optimize the performance of Si-based anodes,including doping design,novel electrolyte design,and fu nctional binder design.Additionally,we assess emerging technologies with high commercial potential for structural design and interfacial modification,such as porous carbon carriers,chemical vapor deposition(CVD),spray granulation,and pre-lithiation.Finally,this work provides perspectives on the structural design of Si-based anodes.Overall,this review systematically summarizes modification strategies for Si-based anodes through structural regulation and interface engineering,thereby providing a foundation for advanced structural and interfacial design. 展开更多
关键词 Lithium-ion batteries Silicon-based anodes Structural engineering Solid electrolyte interphase Chemical vapor deposition,Pre-lithiation
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Efficient Full-Range Nonlinear Analyses of Structural Systems Based on Heterogeneous Graph Learning 认领 引用 被引量：2
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作者 Linghan Song Chen Wang Jiansheng Fan 《Engineering》 SCIE EI CSCD 2026年第4期320-336,共17页
Nonlinear analyses possess tremendous significance throughout the entire lifespans of civil structures.In recent years,the interest in leveraging deep learning(DL)to address the efficiency limitations of the tradition... Nonlinear analyses possess tremendous significance throughout the entire lifespans of civil structures.In recent years,the interest in leveraging deep learning(DL)to address the efficiency limitations of the traditional structural analysis methods has increased.However,full-range nonlinear analyses of different structures remain underresearched because of a lack of appropriate data representations and the failure to consider both internal structural information and external load conditions.A heterogeneous graph(HetG)representation scheme that can digitalize arbitrary structural systems with high fidelity is proposed in this study.Furthermore,a composite feature learning framework is developed to enable efficient full-range nonlinear analyses.This framework comprises two main components:①a heterogeneous graph neural network(GNN)-based module that encodes static features into embeddings with full structural semantics and②a sequence-to-sequence(Seq2Seq)module that predicts history-dependent responses using structural embeddings and external stimuli in an end-to-end manner.A computational model named structural analysis based on a graph neural network-nonlinear(StructGNN-N)is implemented based on the proposed methodology and is validated through numerical experiments involving real-world concrete structures.The results show that StructGNN-N successfully reproduces the full-range nonlinear responses of all nodes in the entire structure and exhibits excellent generalizability across structures with diverse topological designs and member configurations.Notably,the developed model achieves a computational efficiency level that is 1000 times greater than that of the traditional elastoplastic history analysis approach using the finite-element(FE)method.A parametric analysis and ablation studies demonstrate the effectiveness of the StructGNN-N architecture.Due to its superior accuracy and computational efficiency,the proposed method holds great potential for use in engineering applications,especially in the context of digital twins.This approach provides an inspiring path for simulating diverse engineering structures with accurate and comprehensive mechanical information in real time. 展开更多
关键词 Structural system analysis Heterogeneous graph-based deep learning Full-range response prediction Digital twin Smart structural engineering
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Structural and Phase Engineering in Two-Dimensional Polymorphic In2Se3 认领 引用
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作者 Ming Yang Guang Wang +4 位作者 Bo Li Yayun Yu Bowen Yao Zhihui Qin Jiayu Dai 《Chinese Physics Letters》 SCIE EI CAS CSCD 2025年第12期239-252,共14页
The two-dimensional van der Waals layered semiconductor In2Se3 has emerged as a promising candidate for non-volatile ferroelectric memory,optoelectronic devices,and polymorphic phase engineering.Polymorphic In_(... The two-dimensional van der Waals layered semiconductor In2Se3 has emerged as a promising candidate for non-volatile ferroelectric memory,optoelectronic devices,and polymorphic phase engineering.Polymorphic In2Se3 typically stabilizes in three distinct phases:α-,β′-,and β*-In2Se3,each dominant within specific temperature ranges.Although the crystal structures and ferroelectric properties of these phases have been widely studied,the unambiguous assignment of their in-plane and out-of-plane ferroelectric behaviors,as well as the mechanisms governing their phase transitions,remains a subject of active debate.In this study,we investigate the evolution of atomic and electronic structures in molecular beam epitaxy-grown ultrathin In2Se3 films through correlated microstructural and macroscopic physical property analysis.By employing scanning tunneling microscopy/spectroscopy,temperature-dependent Raman spectroscopy,and piezoresponse force microscopy,we demonstrate a reversible temperature-induced phase transition between the in-plane ferroelectric β*and antiferroelectric β′phases.Furthermore,we confirm robust out-of-plane ferroelectric polarization in the as-grown films and achieve an electric-field-driven transition from the β*to β′phase.Our findings not only advance the fundamental understanding of phase transitions and polarization evolution in two-dimensional semiconductors but also open new avenues for the design of tunable,non-volatile ferroelectric memory devices. 展开更多
关键词 polymorphic phase engineeringpolymorphic structural engineering optoelectronic devices two dimensional polymorphic ferroelectric properties Se crystal structures phase engineering
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Enhancing electrochemical reversibility in lithium metal batteries through structural engineering of flexible composite current collectors 认领 引用
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作者 Seungho Lee Subi Yang +11 位作者 Min Sung Kang Yunho Bae Kyunbae Lee Yeonsu Jung Young Hyun Kim Jang-Yul Kim Kwang Chul Roh Jihoon Seo Sung Beom Cho Junghyun Choi Taehoon Kim Patrick Joohyun Kim 《npj Flexible Electronics》 SCIE CSCD 2025年第1期742-753,共12页
Lithium metal batteries(LMBs)offer high energy densities but face challenges including poor reversibility and Li dendrite growth.Herein,we evaluate two flexible composite current collectors composed of reduced graphen... Lithium metal batteries(LMBs)offer high energy densities but face challenges including poor reversibility and Li dendrite growth.Herein,we evaluate two flexible composite current collectors composed of reduced graphene oxide and carbon nanotubes(rGO/CNT)to investigate how Li storage mechanisms influence electrochemical performance.By modulating the number of layers in rGO,the few-layered rGO/CNT collector(FL-CC)stores Li through a pure plating mechanism,whereas the multi-layered rGO/CNT collector(ML-CC)stores lithium via a hybrid intercalation/plating mechanism.The hybrid mechanism in ML-CC promotes reversible Li-ion storage,reduces active Li-ion loss,and suppresses dendrite formation.As a result,ML-CC achieves superior cycling stability compared to FLCC in both LMBs and anode-free LMB tests paired with LiFePO4cathodes at a practical areal capacity of 4.5 mAh cm-2.This study highlights the importance of structural design in current collectors and demonstrates that incorporating lithiatable materials can significantly enhance the electrochemical stability of anode-free LMBs. 展开更多
关键词 carbon nanotubes reduced graphene oxide flexible composite current collectors structural engineering lithium metal batteries carbon nanotubes rgo cnt lithium metal batteries lmbs offer
Recent advances in structural engineering of ceramic microwave absorption materials: From nano/micro architectures to macroscale design 认领 引用 被引量：2
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作者 Qing Qi Tian Li +3 位作者 Huan Yang Aiqi Lv Yanan Liu Fanbin Meng 《Journal of Advanced Ceramics》 SCIE EI CAS CSCD 2025年第12期31-49,共19页
Ceramic-based microwave absorption(MWA)materials have demonstrated significant application potential in cutting-edge fields,including aerospace and advanced weaponry,owing to their superior mechanical strength,excelle... Ceramic-based microwave absorption(MWA)materials have demonstrated significant application potential in cutting-edge fields,including aerospace and advanced weaponry,owing to their superior mechanical strength,excellent chemical and thermal stability,remarkable oxidation and corrosion resistance,outstanding electromagnetic wave(EMW)absorption performance,low density,and high-temperature durability.To further improve the performance of these materials,structural optimization has emerged as a widely adopted strategy.This review systematically summarizes recent advances in ceramic-based MWA materials across multiple scales,from the nanoscale and microscale to the macroscale,and establishes interconnections among synthesis techniques,structural design,and electromagnetic(EM)behavior.The effects of structural engineering,defect modulation,and hierarchical porosity on the dielectric and magnetic loss mechanisms are discussed,along with how morphology influences impedance matching and attenuation efficiency.Finally,the challenges and future prospects of developing lightweight,broadband,and high-temperature-resistant ceramic absorbers are outlined,providing insights for the intelligent design of next-generation EMW absorption systems. 展开更多
关键词 ceramic structure engineering microwave absorption(MWA) high temperature
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Engineering 2D Materials for High-Current-Density Electrocatalytic Water Splitting 认领 引用
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作者 Tianqi Guan Mingjie Wang +6 位作者 Hanyuan Zhang Shutong Qin Yutong Feng Jiao Dai Weilin Xu Jun Wan Huanyu Jin 《Rare Metals》 SCIE EI CAS CSCD 2026年第2期56-81,共26页
Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, ... Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion-electron transport. Two-dimensional(2D) materials, with tunable electronic properties, high surface areas, and unique charge transport characteristics, offer strong potential to enhance performance. However, their behavior under high-current conditions remains unclear, with limited focus on how intrinsic 2D features, such as strain, defects, and interlayer interactions, affect activity and stability. This review critically examines the role of 2D materials in high-current-density water electrolysis, focusing on their structural, electronic, and catalytic mechanisms. Unlike previous reviews that broadly discuss 2D materials in water electrolysis, we specifically address their challenges and opportunities under industrial conditions. We classify 2D materials into six categories: oxides, hydroxides, sulfides, phosphides, carbides and nitrides, and emerging compounds, and analyze their electrochemical stability and catalytic performance at high-current densities. By synthesizing recent advancements, this review offers a framework for designing high-performance 2D catalysts, advancing the development of efficient materials for large-scale, sustainable hydrogen production. 展开更多
关键词 2D materials high-current-density interfacial chemistry structural engineering water splitting
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Recent engineering strategies for enhancing C2+product formation in copper-catalyzed CO2electroreduction 认领 引用
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作者 Muhammad Shakir Hussain Sheraz Ahmed +4 位作者 Muhammad Irshad Syeda Sidra Bibi Muhammad Asif Farooq Sher Muhammad Kashif Khan 《Nano Materials Science》 EI CAS CSCD 2026年第1期207-233,共27页
The conversion of carbon dioxide(CO2)into hydrocarbons through electrochemical CO2reduction reaction(eCO2RR)shows a promising method to reduce CO2levels and decrease reliance on fossil fuels in the years t... The conversion of carbon dioxide(CO2)into hydrocarbons through electrochemical CO2reduction reaction(eCO2RR)shows a promising method to reduce CO2levels and decrease reliance on fossil fuels in the years to come.Copper-based electrocatalysts exhibit a pronounced inclination for C-C coupling,drawing considerable interest as a favored metal catalyst for generating C2+products through CO2RR.However,CO2RR still has some obstacles including product selectivity,higher overpotential,low Faradic efficiency(FE),stability,and current density(CD).Therefore,advancement in this field enables us to comprehend the complex multi-proton electron transfer during C-C coupling and engineering strategies to improve FE and CD.Herein,this review presents some key features of Cu-based catalysts as an electrocatalyst for C2 product formation while addressing the industrial challenges that hinder commercialization of CO2RR.In addition,recent strategies on Cu-based catalysts,synthesis strategies,advanced characterizations,and mechanistic investigations via theoretical simulations have been presented.Furthermore,recent approaches towards the composition,oxidation states,and active facets have been presented.Thus,the most favorable mechanism and possible pathways to synthesize C2+products have been explained using theoretical calculations. 展开更多
关键词 Electroreduction Cu-based catalysts C2products Structural engineering Operando techniques
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AI-Driven Object Detection Framework for Live Load Monitoring and Structural Optimization 认领 引用
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作者 Luis Sánchez Calderón David Valverde Burneo Walter Hurtares Orrala 《Structural Durability & Health Monitoring》 EI 2026年第3期348-370,共23页
Accurate characterization of live load histories remains critical for structural safety and efficient design;however,traditional codes often overestimate in-service loads.This study introduced an AI-driven framework i... Accurate characterization of live load histories remains critical for structural safety and efficient design;however,traditional codes often overestimate in-service loads.This study introduced an AI-driven framework integrating YOLOv8 object detection and DeepFace gender classification with continuous video surveillance to monitor live loads in academic buildings.Gender classification used local anthropometric data(77 kg males,61 kg females)for precise load estimation,with privacy ensured via local processing and anonymized metadata only.Observed peaks were substantially below Eurocode and IBC provisions,confirming code conservatism.Uncertainty propagation from detector errors(recall 0.57,±0.02 Kn/m²)minimally impacted projections.These findings demonstrate the potential of computer vision for data-driven structural optimization and sustainable design. 展开更多
关键词 Live loads computer vision Convolutional Neural Networks(CNN) video surveillance structural engineering YOLOv8 DeepFace occupancy monitoring
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Guest Editorial for the Special Issue on Advanced Computational Modeling and Simulations for Engineering Structures and Multifunctional Materials:Bridging Theory and Practice 认领 引用
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作者 S.M.Anas Rayeh Nasr Al-Dala’ien 《Computers, Materials & Continua》 SCIE EI 2026年第7期2268-2273,共6页
1 Introduction The growing use of computational modelling, simulation tools, and data-driven methods has changedhe way engineering structures and advanced materials are studied and designed. With the increasing availa... 1 Introduction The growing use of computational modelling, simulation tools, and data-driven methods has changedhe way engineering structures and advanced materials are studied and designed. With the increasing availability of high-performance computing, artificial intelligence, and multi-scale simulation techniques,computational modelling is no longer limited to purely theoretical studies. It has now emerged as a practical design aid, allowing researchers to predict material behavior, understand complex interactions, and support engineering decisions across different material and structural scales. These developments have helped in narrowing the gap between theoretical studies and practical engineering applications. 展开更多
关键词 engineering structures practical design aid advanced materials understand complex inte computational modelling simulation tools predict material behavior artificial intelligence
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Subtle structural engineering of a coordination polymer host for the fluorescence modulation of host–guest donor–acceptor systems 认领 引用
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作者 Hong-Xiang Nie Bo Zhang +2 位作者 Yi-Ming Liu Mei-Hui Yu Ze Chang 《Inorganic Chemistry Frontiers》 SCIE EI 2023年第21期6229-6235,共7页
Host-guest engineering of donor-acceptor(D-A)coordination polymer(CP)materials has been proved to be a promising emission modulation strategy for the fabrication of highly tunable luminophores.Herein,it is shown that ... Host-guest engineering of donor-acceptor(D-A)coordination polymer(CP)materials has been proved to be a promising emission modulation strategy for the fabrication of highly tunable luminophores.Herein,it is shown that the fluorescence modulation of host-guest D-A CPs could be achieved through subtle structural engineering.Two isoreticular CPs,{M3(μ3-F)(BDC)3(TPT)(solvents)}n(M=Cd2+for 1 and Zn2+for 2,TPT=2,4,6-tri(4-pyridyl)-1,3,5-triazine,H2BDC=1,4-benzenedicarboxylic acid),were selected as porous host CPs for investigation.By introducing different polyaromatic hydrocarbon(PAH)guests(anthracene;phenanthrene;pyrene;triphenylene;perylene;and coronene)into the host framework,two series of host-guest D-A CPs(PAHs@1 and PAHs@2)were obtained.Detailed investigation indicates that the subtle structural differences originated from the metal center affected D-A interactions between the PAH and TPT ligand,which result in distinct emission properties of PAHs@1 and PAHs@2.These results suggest the potential of structural modulation in the property tuning of the D-A CPs. 展开更多
关键词 host guest engineering structural engineering emission modulation strategy porous coordination polymers subtle structural engineeringtwo donor acceptor coordination polymers fluorescence modulation polyaromatic hydrocarbons
Two-dimensional polymeric carbon nitride: structural engineering for optimizing photocatalysis 认领 引用 被引量：12
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作者 Wenjun Jiang Hui Wang +2 位作者 Xiaodong Zhang Yongfa Zhu Yi Xie 《Science China Chemistry》 SCIE EI CAS CSCD 2018年第10期1205-1213,共9页
As a two-dimensional(2D) material, polymeric carbon nitride(g-C_3N_4) nanosheet holds great potentials in environmental purification and solar energy conversion. In this review, we summarized latest progress in the op... As a two-dimensional(2D) material, polymeric carbon nitride(g-C_3N_4) nanosheet holds great potentials in environmental purification and solar energy conversion. In this review, we summarized latest progress in the optimization of photocatalytic performance in 2D g-C_3N_4. Some of the latest structural engineering methods were summed up, where the relevant influences on the behaviors of photoinduced species were emphasized. Furthermore, the construction strategies for band structure modulation and charge separation promotion were then discussed in detail. A brief discussion on the opportunity and challenge of 2D g-C_3N_4-based photocatalysis are presented as the conclusion of this review. 展开更多
关键词 polymeric carbon nitride structural engineering synthetic strategies photocatalysis
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Structural Engineering of Hierarchical Zeolite-Based Catalysts 认领 引用 被引量：4
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作者 Yingzhen Wei Jingyi Feng +1 位作者 Buyuan Guan Jihong Yu 《Accounts of Materials Research》 CAS 2024年第7期857-871,共15页
CONSPECTUS:Zeolites are important inorganic crystalline materials with unique microporous structures,intrinsic acidic sites,and high hydrothermal stabilities,which have been widely used in the catalytic field such as ... CONSPECTUS:Zeolites are important inorganic crystalline materials with unique microporous structures,intrinsic acidic sites,and high hydrothermal stabilities,which have been widely used in the catalytic field such as methanol conversion,catalytic cracking,and NOx removal.Although the regular channel structures afford zeolite catalysts excellent shape selectivity,the diffusion hindrance caused by the narrow pores(typically less than 2 nm)significantly limits their catalytic activities and lifetimes.Introducing secondary mesopores(2−50 nm)and/or macropores(>50 nm)into the micropore system of zeolites can significantly reduce diffusion limitations and enhance the exposure of more active sites.On the other hand,the delicate integration of microporous zeolites with other functional porous materials into hierarchical heterostructures could offer enhanced or even new catalytic properties that cannot be achieved with single hierarchical zeolite catalysts.For example,tailored meso-/macroporous materials can be combined with zeolites to create composite heterostructures with controllable hierarchical architectures and spatial distributions of functional components from the nano-/microscale to the macroscale in purposeful ways,thus extending their applicability to more intricate and broad heterogeneous catalytic systems.Therefore,the rational design and synthesis of hierarchical zeolite-based materials,spanning from multilevel nanostructures to monoliths,with fascinating catalytic properties hold great significance in the development of efficient energy and environmental catalytic processes.In this Account,we summarize our efforts devoted to the structural engineering of zeolite-based catalysts with hierarchical architectures.At first,we present a brief summary of synthesis strategies of hierarchical zeolite-based materials in the nano-/microscale with particular emphasis on innovative approaches we have recently developed,including kinetic-modulated crystallization,anisotropic-kinetics transformation,and regioselective surface assembly strategies.Notably,we also explore the application of three-dimensional(3D)printing technology as a customizable and scalable manufacturing method to fabricate monolithic catalysts with industrialization potential at the macroscale by superassembly of nano-/microsized zeolite and other functional porous materials as structural subunits.Subsequently,we discuss several representative hierarchical zeolite-based catalysts including hierarchical zeolites,along with zeolite@layered double hydroxide(LDH),zeolite@mesoporous carbon,and zeolite@porous SiO2 hierarchically porous heterostructures.These hierarchical zeolite-based catalysts with multilevel pore structures and chemical composition distributions exhibit enhanced catalytic performances in various catalytic reactions.Finally,we point out the remaining challenges and future perspectives for the fabrication and engineering of innovative hierarchical zeolite-based catalysts.This Account highlights the significance of hierarchical zeolite-based materials and aims to inspire further efforts to the rational design and precise construction of these materials to meet the growing demands for industrial catalytic applications. 展开更多
关键词 mesopores synthesis strategies structural engineering microporous structures catalytic performance macropores methanol conversioncatalytic crackingand hierarchical zeolite based catalysts
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