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Exploration of Gas‑Dependent Self‑Adaptive Reconstruction Behavior of Cu_(2)O for Electrochemical CO_(2) Conversion to Multi‑Carbon Products

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Nano-Micro Letters 2025年第3期17卷 280-296页

作者： Chaoran Zhang Yichuan Gu Qu Jiang Ziyang Sheng Ruohan Feng Sihong Wang Haoyue Zhang Qianqing Xu Zijian Yuan Fang Song State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Structural reconstruction of electrocatalysts plays a pivotal role in catalytic performances for CO_(2)reduction reaction(CO_(2)RR),whereas the behavior is by far superficially ***,we report that CO_(2)accessibility results in a universal self-adaptive structural reconstruction from Cu_(2)O to Cu@CuxO composites,ending with feeding gas-dependent microstructures and catalytic *** CO_(2)-rich atmosphere favors reconstruction for CO_(2)RR,whereas the CO_(2)-deficient one prefers that for hydrogen evolution *** the assistance of spectroscopic analysis and theoretical calculations,we uncover a CO_(2)-induced passivation behavior by identifying a reductionresistant but catalytic active Cu(I)-rich amorphous layer stabilized by*CO ***,we find extra CO production is indispensable for the robust production of *** inverse correlation between durability and FECO/FEC2H4 is disclosed,suggesting that the selfstabilization process involving the absorption of*CO intermediates on Cu(I)sites is essential for durable *** by this insight,we design hollow Cu_(2)O nanospheres for durable and selective CO_(2)RR electrolysis in producing *** work recognizes the previously overlooked passivation reconstruction and self-stabilizing behavior and highlights the critical role of the local atmosphere in modulating reconstruction and catalytic processes.

关键词： CO_(2)reduction reaction Electrocatalysts Cu_(2)O Reconstruction Self-adaptive electrocatalysis

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Recent advances on the oxide film of ignition-proof magnesium alloys:A review

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Journal of Magnesium and Alloys 2025年第1期13卷 4-29页

作者： Jiaxuan Han Bo Hu Zhenfei Jiang Fanjin Yao Zixin Li Dejiang Li Xiaoqin Zeng Wenjiang Ding National Engineering Research Center of Light Alloy Net Forming and the State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China

Magnesium and its alloys offer lightweight advantage and have extensive development prospects,particularly in ***,their flammability poses a significant barrier on the development of Mg *** ignition resistance of these alloys often depends on the protectiveness of the oxide film formed on the *** paper elucidates the formation mechanism of oxide film from thermodynamics and kinetics,classifying oxide films based on their layered structure to assess their protective ***,it comprehensively reviews the impact of characteristics on the protective effectiveness such as compactness,continuity,thickness,and mechanical *** paper also introduces various characterization methods for the microstructure and properties of oxide *** primary objective of this paper is to enhance the comprehension of oxide film concerning the ignition resistance of Mg alloys and to furnish references for future advancements and research in Mg alloys with heightened ignition resistance.

关键词： Magnesium alloys Ignition resistance Oxide film Layered structure Characterization methods

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Achieving excellent strength-ductility-superelasticity combination in high-porosity NiTiNb scaffolds via high-temperature annealing

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材料科学技术（英文版） 2025年第3期206卷 221-233页

作者： Wei Liu Yintao Zhang Binghao Wang Shifeng Liu Yan Wang Ling Zhang Liang Zhang Lai-Chang Zhang Weijie Lu Liqiang Wang State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Affiliated Hospital of Youjiang Medical University for Nationalities Guangxi Health Commission Key Laboratory of Biomedical Materials ResearchBaise 533000China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China International Joint Laboratory for Light Alloys(MOE) College of Materials Science and EngineeringChongqing UniversityChongqing 400045China Centre for Advanced Materials and Manufacturing School of EngineeringEdith Cowan University270 Joondalup DriveJoondalupPerth6027WAAustralia

metallic scaffolds with lightweight,low elastic modulus,and high energy-absorbing capacity are widely utilized in industrial applications but usually require post-heat treatment to enhance their comprehen-sive mechanical ***,it is unclear how to utilize the impact of β-Nb on the surrounding matrix for NiTiNb ternary alloys to achieve strength-ductility-superelasticity ***,we pre-pared rhomboidal dodecahedral NiTiNb porous scaffolds with a porosity of 85.9％by additive ***,annealing treatment was employed to drastically reduce the phase transformation temperatures and expand the thermal ***,the 850 ℃ annealed scaffold exhibited exceeding double compressive strength of the as-built sample,with a remarkable improvement in ductil-ity and *** the microstructure perspective,high-temperature annealing caused a further eutectic reaction of the unmelted Nb particles with the NiTi matrix and the transformation of mesh-like β-Nb into dispersedly distributed spherical β-Nb *** microstructure evolution after defor-mation indicated that stress-induced martensitic transformation occurred in the matrix away from the NiTi-Nb eutectic region whereas almost no martensite formed nearby β-Nb *** probe tomog-raphy characterization revealed an element diffusion zone in several nanometers surrounding the β-Nb particle,where the substitution of Nb with Ti led to a higher Ni:Ti atomic ratio,lowering transforma-tion *** dynamics simulations illustrated that β-Nb particles can not only entangle dislocations internally,acting as reinforcements but also hinder the twin growth,contributing to strain *** work elucidates the influence of β-Nb particles on the deformation mechanism of the NiTi-Nb eutectic region through in-depth atomic-scale investigation,which can provide inspiration for the improvement of comprehensive mechanical properties of NiTiNb alloys.

关键词： NiTiNb Eutectic alloys Mechanical properties metallic scaffolds Strain hardening

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Atomistic simulations of twin facets associated with three-dimensional{1011}twins in magnesium

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Journal of Magnesium and Alloys 2025年第2期13卷 626-639页

作者： Qiyu Zeng Mingyu Gong Houyu Ma Yao Shen Jian-feng Nie Jian Wang Yue Liu State Key Lab of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Center for High-resolution Electron Microscopy(CHEM) School of Physical Science and TechnologyShanghai Tech UniversityShanghai 201210China Department of Materials Science and Engineering Monash UniversityVictoria 3800Australia Department of Mechanical&Materials Engineering University of Nebraska-LincolnLincolnNE 68583USA

Twinning is a deformation mechanism that creates three-dimensional(3D)twin domains through the migration of twin *** occurs via the nucleation and glide of twinning disconnections(TDs),which can pile up to create twin facets.A comprehensive under-standing of twin facets associated with 3D twins,including their atomic structures and energies,is crucial for understanding deformation *** this study,we propose a molecular statics/dynamics(MS/MD)approach to determine characteristic twin facets enclosing 3D non-equilibrium/equilibrium{1011}twin domains,which has been much less studied than the counterpart{1012}twin *** stability of different TD pile-up arrangement with varying line senses informs the morphology of 3D non-equilibrium twins,which are bounded by{1010}_(T)||{1013}_(M),{1011}_(T)||{0002}_(M)and{1013}_(T)||{1013}_(M)coherent facets associated with pile-up of edge TDs,and discrete non-edge TDs aligned along CTBs with their line senses parallel to<4513>,<1101>,<5416><2113>or<1012>*** of semi-coherent facets of equilibrium twins is accompanied by rearrangement of TDs around misfit dislocations.3D equilibrium{1011}twins may comprise{1011}_(T)||{0002}_(M),{1457}_(T)||{3419}_(M),{1657}_(T)||{5617}_(M),{1433}_(T)||{3413}_(M),{0110}_(T)||{0111}_(M)and{0221}_(T)||{0221}_(M)semi-coherent facets in<1210>,<4513>,<1101>,<5416>,<2113>and<1012>axes,respectively.

关键词： Twinning Twin boundary Twinning disconnection Molecular dynamics

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Exceptional mechanical properties of wire arc additive manufactured Mg-9Gd-3Y-0.5Zr alloy induced by promoted precipitation behavior

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Journal of Magnesium and Alloys 2025年第2期13卷 562-570页

作者： Junmin Zhan Guohua Wu Xin Tong Fangzhou Qi Qiman Wang Rui Jiang Youjie Guo Zhanyong Zhao Peikang Bai National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Materials Science and Engineering North University of ChinaTaiyuan030051China Taiyuan University of Science and Technology Taiyuan030602China

Additive manufactured Mg-RE alloys usually show exceptional mechanical properties,which is mainly attributed to their refined grains in previous *** Mg-RE series are typical age-hardenable alloys,this study focuses on the aging behavior of wire arc additive manufactured Mg-9Gd-3Y-0.5Zr(GW93K)alloy and compares it with the as-cast counterpart,providing a new insight into the strengthening mechanism of additive manufactured *** was revealed that both the refined equiaxedα-Mg grains and small-sized(only 5~10 nm)β′precipitates with an extremely high number density(~2.53×10^(4)µm^(-2))should be considered for the strengthening mechanisms of the deposited *** promoted precipitation behavior is facilitated by the dislocation pile-ups formed under multiple thermal cycles and a high cooling rate during *** a result,the deposited alloy at peak-aged state exhibits better comprehensive properties of UTS=392 MPa and EL=3.3%,which is 19%and 18%higher than that of the cast sample,individually.

关键词： Mg-Gd-Y-Zr alloy Additive manufacturing Precipitation behavior Microstructure Strengthening mechanism

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A functional cathode sodium compensation agent for stable sodium-ion batteries

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Green Energy & Environment 2025年第1期10卷 173-182页

作者： Wei Wu Zhenglin Hu Zhengfei Zhao Aoxuan Wang Jiayan Luo Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China Shanghai Jiao Tong University Shaoxing Research Institute of Renewable Energy and Molecular Engineering Shaoxing312000China

Hard carbon(HC)is widely used in sodium-ion batteries(SIBs),but its performance has always been limited by lowinitial Coulombic efficiency(ICE)and cycling *** compensation agent is a favorable strategy to make up for the loss of active sodium ions consumed *** it lacks agent that effectively decomposes to increase the active sodium ions as well as regulate carbon defects for decreasing the irreversible sodium ions ***,we propose 1,2-dihydroxybenzene Na salt(NaDB)as a cathode compensation agent with high specific capacity(347.9 mAh g^(-1)),lower desodiation potential(2.4–2.8 V)and high utilization(99%).Meanwhile,its byproduct could functionalize HC with more C=O groups and promote its reversible ***,the presodiation hard carbon(pHC)anode exhibits highly reversible capacity of 204.7 mAh g^(-1) with 98%retention at 5 C rate over 1000 ***,with 5 wt%NaDB initially coated on the Na3V2(PO4)3(NVP)cathode,the capacity retention of NVP + NaDB|HC cell could increase from 22%to 89%after 1000 cycles at 1 C *** work provides a new avenue to improve reversible capacity and cycling performance of SIBs through designing functional cathode compensation agent.

关键词： Hard carbon ICE Cathode compensation agent Reversible capacity Stability

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Enhancing the creep resistance in a RE-free cast Mg-Al-Ca alloy through microalloying of Ti

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Journal of Magnesium and Alloys 2025年第1期13卷 414-428页

作者： Zhuang Cui Yang Liu Ying Zeng Manping Liu Xiaochun Liu Shiwei Xu Xuefei Chen Qudong Wang School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Material Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Institute of Metals College of Material Science and EngineeringChangsha University of Science&TechnologyChangsha 410004China College of Mechanical and Vehicle Engineering Hunan UniversityChangsha 410082China

High temperature performance of magnesium alloys can be tailored by either grain size or precipitates in the grain *** this study,exceptional creep resistance was successfully acquired in a RE-free cast Mg-Al-Ca-Ti(AC51Ti)*** of Ti(0.01 wt.%)has been found to be beneficial to the improvement of the tensile creep resistance in a RE-free cast Mg-5Al-0.35Mn-(1Ca)(AC51)alloy,showing a low state creep rate(SCR)of 2.70×10^(−9)s^(−1)at 200℃/50 MPa,which is even better than that of many reported RE-containing Mg *** presence of trace Ti contributes to the substantial refinement and more uniform distribution of Al_(2)Ca precipitates in the *** the same time,the microalloying of Ti improves the solubility of Al and Ca in the *** is reasonable to believe that the microalloying of Ti induced re-organization of Al_(2)Ca precipitates,dissolved a larger amount of Al and Ca atoms into magnesium lattice,and increased the possibility of interaction between GB/dislocations and precipitates,which strongly correlates with the high temperature *** creep strengthening mechanisms primarily attributed to both second phase strengthening and solid solution strengthening were separately proposed based on the experimental investigations.

关键词： Magnesium alloy Creep mechanisms Al_(2)Ca phase Microalloying of Ti

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Macro-to-nano dynamic hydrogels in sustained transdermal therapy of diffuse ocular surface malignancies

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Nano Research 2025年第3期18卷 372-385页

作者： Jie Chen Yirong Zeng Hao Tian Qixiao Guan Ziyue Huang Hongjing Dou Shiqiong Xu Renbing Jia Department of Ophthalmology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai 200011China The State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Conjunctival melanoma(CοM)is of high malignancy that diffusely impacts the ocular surface,which is challenging to surgically remove and pose a life-threatening *** one of the most suitable treatment options,drug dropping drugs to the eye surface,however,is limited in its clinical application for CoM treatment due to low drug *** BRAF/MEK inhibitors(BRAF/MEKi)as model drugs,this study proposes a long-lasting eyedrop based on BRAF/MEK dual-targeted liposome-doped dynamic hydrogels with drugs(B/MLDDHs),which can overcome the tear flushing to succeed in effective ocular surface drug delivery.B/MLDDHs encapsulate drugs within lipid bilayers,enhancing drug bioavailability and *** aldehyde dextran and protonated chitosan-based injectable hydrogel system facilitates drug retention on the ocular surface exerting a sustained liposome release,which significantly enhances the drug *** therapeutics,this study demonstrates significantly enhanced in vivo therapeutic effect on orthotopic mouse model of *** their ability to fulfill permeable and long-term release of hydrophobic drugs,B/MLDDHs may serve as a promising platform for non-invasive delivery of various drug molecules,thereby improving therapeutic outcomes for CoM.

关键词： hydrogels targeted therapy conjunctival melanoma ocular surface malignancies

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Synthesis of ordered mesoporous crystalline boron phosphate scaffold with double diamond surface structure

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science China Chemistry 2025年第2期68卷 590-600页

作者： Chao Wang Wen-Duo Lu Jiao Wang Shunai Che An-Hui Lu Lu Han School of Chemical Science and Engineering Tongji UniversityShanghai 200092China State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon ResourcesSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesState Key Laboratory of Metal Matrix CompositesShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong UniversityShanghai 200240China

Ordered mesoporous materials have received great attention due to their well-defined pore structures and potential applications in catalysis,adsorption,separation,drug delivery,*** various compositions of mesoporous solids have been successfully prepared,the preparation of crystalline non-metallic oxyacid salts with ordered mesoporosity remains a major ***,we report the synthesis of a mesoporous solid acid crystalline boron phosphate(BPO_(4))catalyst with a bicontinuous shifted double diamond(SDD)hyperbolic surface *** BPO_(4) scaffold was obtained by synergistic selfassembly in a mixed solvent of water and tetrahydrofuran using the diblock copolymer poly(ethylene oxide)-block-polystyrene as template and phosphoric acid and orthoboric acid as inorganic *** structure consists of two sets of diamond networks adjacent to each other with a mesostructural scale tetragonal symmetry(space group I4_(1)/amd)with unit cell parameters of a=80 nm and c=113 nm,which affords the scaffold a specific surface area of 44 m^(2)/*** a solid acid catalytic material,the SDD BPO_(4) scaffold exhibited excellent catalytic activity at room temperature with a conversion of furfural to 2-(dimethoxymethyl)furan over 70%and can be reused after recovery without serious loss of *** the propane oxidative dehydrogenation reaction,SDD BPO_(4) demonstrated high olefin productivity and selectivity while maintaining high reaction *** study provides ideas for the preparation of ordered mesoporous crystalline catalytic materials and demonstrates their potential for practical applications.

关键词： boron phosphate mesoporous material self-assembly block copolymer catalyst

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Encapsulating Sb atoms in highly conductive Cu-S frameworks for fast and robust sodium storage

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Journal of Energy Chemistry 2025年 107卷 591-598页

作者： Chen, Wen Pan, Youtan Hu, keyan Nie, Hao Li, Shuai Zhang, Huan Zheng, Chong Huang, Fuqiang Dong, Wujie School of Mechanical and Electrical Engineering Jingdezhen Ceramic University Jiangxi Jingdezhen333403 China State Key Lab of Metal Matrix Composites School of Materials Science and Engineering and Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University Shanghai200240 China Department of Chemistry and Biochemistry Northern Illinois University DeKalbIL60115 United States

Sodium ion batteries (SIBs) currently lack sufficient anode materials that simultaneously demonstrate exceptional capacity, durability under prolonged cycling, and rapid charging capabilities. Antimony (Sb) has emerged as an attractive alloy-based anode candidate due to its notable theoretical capacity, nevertheless grappling with significant challenges including substantial structural deformation during operation and sluggish ion transport kinetics. Herein, we atomically disperse Sb into open Cu-S frameworks with high cyclic stability and good conductivity. In-situ and ex-situ analyses reveal the multistep reversible reaction processes during the charging (formation of Cu3SbS4) and discharging (precipitation of fracture-resistant Na3Sb in the ionic-conductive NaxCu2S2/Na2S matrix) processes. As a result, the thoughtfully engineered Cu3SbS4 anode, without requiring additional carbon compositing, attains a high reversible specific capacity of 597 mAh g−1 at a 0.3 C rate. It also maintains approximately 95% capacity retention even at 15 C after 4300 cycles. The assembled Cu3SbS4||Na3V2(PO4)3 full cell achieves 10 C high rate performance and demonstrates excellent cycling stability of ∼94.0% capacity retention after 200 cycles. Our approach to material design might offer a novel method for creating durable, high-capacity, and high-rate anode materials for sodium-ion batteries. © 2025

关键词： Anode Cu3SbS4 Long-life Open frameworks Sodium ion batteries

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