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Transactions of Nonferrous Metals Society of China 2024年第11期34卷 3662-3676页

作者： Jiang-kun FAN Hong-ci YANG Pei-zhe ZHANG Jia-yu LI Zhan-jie JING Fu-long CHEN De-gui LIU Bin TANG Hong-chao KOU Jin-shan LI State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China National&Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials Xi’an 710072China Chongqing Innovation Center Northwestern Polytechnical UniversityChongqing 401135China AVIC Manufacturing Technology Institute Beijing 100024China

The high-temperature oxidation behaviour of the Inconel 625 alloy at 950℃ was investigated after different ageing *** effect of heat treatment on the oxidation behaviour of the alloy was analysed by characterizing the structure and elemental distribution before and after *** results reveal that the two ageing treatments at 650℃ for 500 h and at 750℃ for 400 h both reduced the oxidation mass *** oxidation at 950℃,an outer Cr_(2)O_(3) layer and inner Al_(2)O_(3) are identified as the main oxidation ***,Nb_(2)O_(5) andδ(Ni_(3)Nb)phases precipitated after *** ageing treatments cause the rapid generation of a dense Cr_(2)O_(3) layer on the surface,which prevents the diffusion of oxygen into the matrix,reduce the Al_(2)O_(3) inward growth depth,and improve the oxidation resistance of the alloy.

关键词： Inconel 625 alloy ageing treatment oxidation behaviour oxidation film kinetics

Insights into Laser Powder Bed Fused Β-Type Titanium Alloy: Investigating Corrosion Behavior and Wear Properties after Post-Heat Treatment

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SSRN 2025年

作者： Luo, Xuan Li, Yuhao Yang, Chao Zhao, Chao Ma, Hongwei Song, Tao Sun, Minghan Liu, Xiaotao Li, Dongdong Li, Ning State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Wuhan430074 China National Engineering Research Center of Near-net-shape Forming for Metallic Materials Guangdong Provincial Key Laboratory for Processing Forming of Advanced Metallic Materials South China University of Technology Guangzhou510640 China Ningbo University China School of Materials Science and Engineering

The systematic evaluation of corrosion resistance and wear behavior represents a critical imperative for advancing biomedical titanium alloys in implant applications. This study systematically examines the corrosion-wear characteristics of laser powder bed fusion (LPBF)-fabricated β-type Ti-34.5Nb-6.9Zr-4.9Ta-1.4Si (TNZTS) alloy after post heat treatment, comparing with LPBF-processed Ti-35Nb-7Zr-5Ta (TNZT) and Ti-6Al-4V counterparts. Electrochemical analysis reveals the TNZTS system's excellent corrosion resistance, stemming primarily from reduced porosity and stabilized passivation film formation. The incorporation of Si effectively addressed the inherent limitation of TNZT alloy in forming defective passivation films under high-potential conditions, thereby enhancing their corrosion resistance. In addition, the TNZTS alloy with hard S2 phase also showed a significant improvement in wear resistance, as manifested by shallower and narrower wear tracks and a lower specific wear rate. This study provides foundational insights into the novel β-type Ti-Nb-Zr-Ta-Si alloy with excellent corrosion resistance and wear properties, positioning it as a promising candidate for load-bearing orthopedic implant applications. © 2025, The Authors. All rights reserved.

关键词： Passivation

First-principles study on lattice structures and electronic properties of Al/Al2S3 interface

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MRS Communications 2025年 1-6页

作者： Zhao, Qing-shan Li, Wen-xiang Xue, Hong-tao Tang, Fu-ling State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology Lanzhou China School of Mechanical Engineering Lanzhou Petrochemical University of Vocational Technology Lanzhou China School of Materials Science and Engineering Lanzhou University of Technology Lanzhou China

The interfacial crystal structures and electrical properties of the collector fluids Al and Al2S3 were studied. For the semi-coherent interface whose lattice matching degree is only 7.99%, the binding energy of the interface is − 1.287 J /m2 when the interface distance is 2.448 Å. It was found that the accumulation of electrons from Al to Al2S3 promoted the formation of a stable interface that exhibited metallic conductivity. After the interface is formed, electrons need to overcome the energy barrier of 1.71 eV to enter Al2S3, which increases the difficulty of fluid collection. The formation of the Al/Al2S3 interface leads to the decline in the conductivity of the current collector and the stability of the Al current collector

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Rationally Designing Anti-Poisoning Polymer Electrolyte by Electronegativity Modulation: Towards Efficient Ammonia-Cracked Hydrogen Fuel Cells

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SSRN 2023年

作者： Shuai, Jiaqi Zhao, Shengqiu Liao, Yucong Wu, Fanglin Wang, Rui Wang, Letian Shen, Chunhui Tang, Haolin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Polymer Materials & Engineering School of Material Science & Engineering Wuhan University of Technology Wuhan430070 China Hubei Key Laboratory of Fuel Cells Wuhan University of Technology Wuhan430070 China

Ammonia as a hydrogen enrichment medium has tremendous advantages over pure hydrogen in terms of transportation and utilization. The high-efficiency anti-ammonia-poisoning membrane electrode assembly (MEA) is pivotal for the practical implementation of ammonia-resistant proton exchange membrane fuel cells (PEMFCs). As for the polymer electrolyte, which is an integral part of the proton exchange membrane (PEM) and catalytic layer (CL) binder in the MEA, structural design is an effective way to improve its resistance to ammonia poisoning. Herein, an in-depth study of sulfonimides with superacidic structures reveals that the proton dissociation energies can be altered by tuning the terminal groups with different electronegativity and enhancing the competitive adsorption of protons on Pt. Four perfluorinated backbone sulfonimides (PFSI-x (x= TSM, MSA, ESA, and iPSA)) with distinct charge delocalization were fabricated by grafting different electronegative monomers onto the perfluorosulfonyl fluoride (PFSF). The results show that PFSI-TSM possesses a higher electrostatic potential (2.69 eV) and the lowest activation energy (12.07 KJ/mol). Meanwhile, the performance of the PFSI-TSM PEM fuel cell is 40.6% higher than the PFSA at 80°C, 100% relative humidity (RH) under 100 ppm NH3, with a maximum power density of 635.2 mW/cm2. The underlying reason for enhanced performance is in virtue of the more electronegative end groups render the superacid electrolyte with higher acidity and pKa values, which change the direction of the acid dissociation equilibrium reaction on the Pt surface, enhance the competitive adsorption of protons in the MEA and reduces the probability of ammonia adsorption poisoning. The insights in charge delocalization and proton ionization construct the structure-property relationship which would provide the guidance for a rational design of PEM for ammonia-resistant fuel cells. © 2023, The Authors. All rights reserved.

关键词： Electronegativity

Interfacial coordination bonds accelerate charge separation for unprecedented hydrogen evolution over S-scheme heterojunction

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Chinese Journal of Catalysis 2024年第10期65卷 174-184页

作者： Chunxue Li Hao Lu Guixiang Ding Tianyi Ma Shiyong Liu Li Zhang Guangfu Liao College of Ecological Environment and Urban Construction Fujian University of TechnologyFuzhou 350118FujianChina School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009JiangsuChina College of Materials Engineering Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina School of Science RMIT UniversityMelbourneVIC 3000Australia Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry Jiangxi University of Science and TechnologyGanzhou 341000JiangxiChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200HubeiChina

Inspired by natural photosynthesis,fabricating high-performance S-scheme heterojunction is regarded as a successful tactic to address energy and environmental ***,NH_(2)-MIL-125(Ti)/Zn_(0.5)Cd_(0.5)S/NiS(NMT/ZCS/NiS)S-scheme heterojunction with interfacial coordination bonds is successfully synthesized through in-situ solvothermal ***,the optimal NMT/ZCS/NiS S-scheme heterojunction exhibits comparable photocatalytic H_(2)evolution(PHE)rate of about 14876.7μmol h^(−1)g^(−1)with apparent quantum yield of 24.2%at 420 nm,which is significantly higher than that of recently reported MOFs-based *** interfacial coordination bonds(Zn–N,Cd–N,and Ni–N bonds)accelerate the separation and transfer of photogenerated charges,and the NiS as cocatalyst can provide more catalytically active sites,which synergistically improve the photocatalytic ***,theoretical calculation results display that the construction of NMT/ZCS/NiS S-scheme heterojunction also optimize the binding energy of active site-adsorbed hydrogen atoms to enable fast adsorption and *** Kelvin probe force microscopy,in-situ irradiation X-ray photoelectron spectroscopy,femtosecond transient absorption spectroscopy,and theoretical calculations provide sufficient evidence of the S-scheme charge migration *** work offers unique viewpoints for simultaneously accelerating the charge dynamics and optimizing the binding strength between the active sites and hydrogen adsorbates over S-scheme heterojunction.

关键词： Interfacial coordination bond S-schemeheterojunction Photocatalytic H_(2)evolution Charge dynamics Free energy barrier

Long lifespan Li-Se battery: Advances, challenges and prospects

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Journal of Energy Chemistry 2025年 102卷 712-733页

作者： Hongyan Li Thomas L. Madanu Tarek Barakat Wen-Da Dong Alexandru Vlad Xikun Zhang Cheng-Bin Jin Yu Li Bao-Lian Su College of Materials and Chemistry China Jiliang University Hangzhou 310018 Zhejiang China Laboratory of Inorganic Materials Chemistry (CMI) Namur Institute of Structured Matter (NISM) University of Namur 61 rue de Bruxelles B-5000 Namur Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430074 Hubei China Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Université catholique de Louvain Louvain-la-Neuve Belgium

Lithium-selenium (Li-Se) batteries have attracted increasing attention as one of the next-generation battery systems due to much higher electronic conductivity and comparable volumetric capacity of Se compared to the popular sulfur cathode. However, its practical application still faces great challenges, especially the rapid capacity decay triggered by the loss of active Se species. A comprehensive review to uncover the in-depth failure mechanism and provide targeted solutions to promote the stable operation of Li-Se batteries is urgently needed. This review systematically summarizes the strategies in the new perspective, focusing on the optimization of Se utilization in Li-Se batteries by keeping a high Se maintenance in the cathode and accelerating the electrochemical kinetics of lithium polyselenides (LiPSe) conversion. On the basis of structural design and Li 2 Se active material introduction to accommodate volume expansion, blocking shuttle transport of LiPSe by physical/chemical adsorption, bonding Se with polymers or cathode electrolyte interphase (CEI) construction, and catalytic design to accelerate the conversion of LiPSe, different strategies for improving the utilization of Se have been evaluated and discussed. To address the inevitable loss of Se, prospects on inactive Se reactivation and Li protection are detailedly proposed and analyzed referring to the chemistry and corrosion science. Additionally, the perspectives on the future design and comprehensive parameter evaluations for the optimization of Li-Se batteries are recommended. This review comprehensively explains the causes and solutions of capacity fading and provides potential efforts for lifespan expansion of batteries, shedding light on the future development of Li-Se batteries.

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Interaction of the Initial β-Mg17Al12 Phase with α-Matrix Grains in the AZ91 Magnesium Alloy During Hot Extrusion

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SSRN 2025年

作者： Zhao, Dijia Shao, Yuman Lü, Shulin Yan, Zhaoxiang Guo, Wenbo Li, Shilong Li, Jianyu Xu, Shiwei Wu, Shusen Nie, Jianfeng State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Wuhan430074 China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan University Changsha410082 China Department of Materials Science and Engineering Monash University VIC3800 Australia

Secondary phase particles in magnesium alloys can facilitate particle-stimulated nucleation and pinning the grain boundary migration during the dynamic recrystallization (DRX) process. But a conflict exists between these two effects. By optimizing the hot extrusion process and preserving the irregular island-shaped β-Mg17Al12 phase (β-phase) derived from the eutectic reaction in the AZ91 magnesium alloy billet, we revealed the interaction of the initial β-phase with the α-matrix during extrusion. In the early stages of extrusion, the irregular, island-shaped, coarse β-phase causes significant dislocation accumulation in the adjacent α-matrix due to the hardness difference. As dislocations accumulate, the β-phase fragments and transforms into spindly fibrous bands, effectively illustrating a pinning effect. The morphological change of the β-phase not only promotes the DRX process but also inhibits the growth of DRXed grains, thereby refining the grain size. This research helps to expand the design strategies for extruded magnesium alloys. © 2025, The Authors. All rights reserved.

关键词： Magnesium alloys

Cathodic Zn underpotential deposition:an evitable degradation mechanism in aqueous zinc-ion batteries

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Science Bulletin 2022年第18期67卷 1882-1889,M0004页

作者： Shaohua Zhu Yuhang Dai Jinghao Li Chumei Ye Wanhai Zhou Ruohan Yu Xiaobin Liao Jiantao Li Wei Zhang Wei Zong Ruwei Chen Guanjie He Dongliang Chao Qinyou An State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative Materialsand School of Chemistry and MaterialsFudan UniversityShanghai 200433China Christopher Ingold Laboratory Department of ChemistryUniversity College LondonLondon WC1H 0AJUK Electrochemical Innovation Laboratory Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUK State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Department of Materials Science and Metallurgy University of CambridgeCambridge CB30FSUK

Aqueous zinc-ion batteries(AZIBs)are promising for large-scale energy storage,but their development is plagued by inadequate cycle ***,for the first time,we reveal an unusual phenomenon of cathodic underpotential deposition(UPD)of Zn,which is highly irreversible and considered the origin of the inferior cycling stability of *** experimental and theoretical simulation approaches,we propose that the UPD process agrees with a two-dimensional nucleation and growth model,following a thermodynamically feasible ***,the universality of Zn UPD is identified in systems,including VO_(2)//Zn,TiO_(2)//Zn,and SnO_(2)//*** practice,we propose and successfully implement removing cathodic Zn UPD and substantially mitigate the degradation of the battery by controlling the end-ofdischarge *** work provides new insights into AZIBs degradation and brings the cathodic UPD behavior of rechargeable batteries into the limelight.

关键词： Underpotential deposition Zn metal deposition Zinc-ion battery Aqueous battery Degradation mechanism

A comprehensive review on catalysts for seawater electrolysis

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Advanced Powder Materials

advanced Powder materials 2024年第5期3卷 111-134页

作者： Jihong Li Genyuan Fu Xiaokun Sheng Guodong Li Hui Chen Kaiqian Shu Yan Dong Tongzhou Wang Yida Deng State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and Engineering Hainan UniversityHaikou570228China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun130012China State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071China

Seawater electrolysis is a sustainable energy conversion technology that generates clean energy by splitting seawater into hydrogen and ***,the catalysts used in seawater electrolysis often face significant stability challenges because of the high concentration of salt ions and other impurities present in *** review aims to discern the pivotal factors influencing catalyst stability in seawater electrolysis,elucidate the corrosion and electrochemical degradation mechanisms,and delve into the various strategies employed to enhance catalyst *** strategies encompass catalyst material selection,surface modification techniques,catalyst support materials,and catalyst design *** gaining deeper insights into the obstacles and innovations concerning catalyst stability in seawater electrolysis,this review strives to expedite progress toward the commercialization and widespread adoption of this technology as a renewable and feasible approach for hydrogen ***,the goal is to foster a cleaner and more sustainable future by enabling the efficient and enduring generation of hydrogen from seawater.

关键词： Seawater electrolysis Green hydrogen Stability Catalyst corrosion Selectivity

Tellurium Filled Carbon Nanotubes Cathodes for Li-Te Batteries with High Capacity and Long-Term Cyclability

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SSRN 2023年

作者： Rao, Shaoqing Wu, Ruizhe Zhu, Zhu Wu, Jinsong Ding, Yao Mai, Liqiang School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry and Chemical Engineering Hubei University Wuhan430062 China

Li-Te batteries, compared with traditional lithium-ion batteries and Li-other group VIA elements (including O, S, Se) batteries, have shown overwhelming features of high specific volumetric capacity and superior electrical conductivity. These features make the Li-Te batteries possess great importance in modern portable electronics and electric vehicles with limited battery package size. However, the Achilles' Heel in Li-Te batteries is the huge volume change and inevitable shuttle effect of polytellurides during cycling. Herein, we synthesize a cathode material based on polycrystalline Te encapsulated in N-doped multiwall carbon nanotubes (Te-filled CNTs) by physical vapor transport (PVT) method. With unique spatial restriction of the CNT hosts, the electrochemically active Te content can be well preserved, and the prepared Te-filled CNTs cathodes deliver a high specific capacity of 590 mAh g-1 based on Te content. More importantly, the reaction kinetics and electrochemical reversibility of the cathodes have been significantly improved by using nanoscale cavities (4-6 nm) by which the polytellurides are stabilized. Meanwhile, a series of in situ Raman, XRD and TEM characterizations are carried out to reveal a two-step discharge/charge mechanism for Te-filled CNTs, which is the key for the excellent cycling stability. In addition, theoretical calculations prove that the encapsulated Te ensure a lower energy barrier for lithiation compared with bare CNT. This work sheds light on the nanoconfinement effect of CNT for improving the utilization and cycling stability of Te in Li-Te batteries, and provides a new strategy of designing high-performance group VIA element based cathodes. © 2023, The Authors. All rights reserved.

关键词： Cathodes