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The Kirkendall effect on erosion resistance of chrome-coated 25Cr3Mo2WNiV and 30SiMn2MoV gun barrel steels

Journal of materials Science & Technology 2024年第10期177卷 246-255页

作者： C.H.Dou P.F.Jin C.Z.Wang J.J.Li C.Zhang J.F.Huang C.Zhang Key Laboratory for Advanced Materials Processing State State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials School of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471003China

This study aimed to investigate the erosion behavior and mechanism of a newly developed 25Cr3Mo2WNiV steel with a chrome coating using promoted ignition combustion *** erosion threshold pressure and temperature of the chrome-coated 25Cr3Mo2WNiV steel were determined to be 0.2 MPa and 254.3 K higher than those of traditional chrome-coated 30SiMn2MoV ***,Kirkendall voids and inter-diffusion between the Cr coating and matrix were first observed before *** improved erosion resistance of the chrome-coated 25Cr3Mo2WNiV steel was attributed to the suppression of the Kirkendall effect,which minimized heat generation at the Cr/matrix interface by pre-venting oxygen diffusion and reducing oxygen affinity.

关键词： Erosion resistance Kirkendall effect Cr coating Gun steel

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Noncovalent cross-linked engineering hydrogel with low hysteresis and high sensitivity for flexible self-powered electronics

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Journal of Energy Chemistry 2024年第7期94卷 136-147页

作者： Hang Yuan Shaowei Han Jia Wei Songwei Li Peipei Yang Hao-Yang Mi Chuntai Liu Changyu Shen National Engineering Research Center for Advanced Polymer Processing Technology Key Laboratory of Materials Processing and Mold(Ministry of Education)Zhengzhou UniversityZhengzhou450002HenanChina Yunnan TobaccoQuality Inspection&Supervision Station Kunming 650106YunnanChina

In this study,the hydrogel network was reinforced by covalent-like hydrogen bonding,and the strong binding ability of boron-nitrogen coordination served as the main driving *** them,acrylamide(AM)and 3-acrylamidophenylboronic acid(AAPBA)were the main body,and the numerous hydroxyl groups in the trehalose(Treh)molecule and other polymer groups formed strong hydrogen bonding interactions to improve the mechanical properties of the PAM/PAAPBA/Treh(PAAT)hydrogel and ensured the simplicity of the synthesis *** hydrogel possessed high strain at break(1239%),stress(64.7 kPa),low hysteresis(100%to 500%strain,corresponding to dissipation energy from 1.37 to 7.80 kJ/m^(3)),and outstanding cycling stability(retained more than 90%of maximum stress after 200 ten-sile cycles).By integrating carbon nanotubes(CNTs)into PAAT hydrogel(PAATC),the PAATC hydrogel with excellent strain response performance was successfully *** PAATC conductive hydro-gel exhibited high sensitivity(gauge factor(GF)=10.58 and sensitivity(S)=0.304 kPa^(-1)),wide strain response range(0.5%-1000%),fast response time(450 ms),and short recovery time(350 ms),excellent fatigue resistance,and strain response ***,the PAATC-based triboelectric nanogener-ator(TENG)displayed outstanding energy harvesting performance,which shows its potential for appli-cation in self-powered electronic devices.

关键词： Low hysteresis Covalent-like hydrogen bonding Boron-nitrogen coordination Hydrogel sensor Triboelectric nanogenerator

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Application of Ag-based materials in high-performance lithium metal anode:A review

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材料科学技术（英文版） 2023年第2期133卷 165-182页

作者： Zhongxiu Liu Sihu Ha Yong Liu Fei Wang Feng Tao Binrui Xu Renhong Yu Guangxin Wang Fengzhang Ren Hongxia Li Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science & Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science & Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of High-Temperature Structural and Functional MaterialsHenan University of Science and TechnologyLuoyang 471003China School of Electrical Engineering Henan University of Science and TechnologyLuoyang 471023China State Key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang 471039China

Li metal is a promising candidate for battery anodes due to its high theoretical specific capacity(3860 mAh g-1)and low electrochemical potential(-3.04 V).Nevertheless,the challenges for Li metal include uncontrolled dendrites growth,unstable solid electrolyte interface,and infinite volume expansion during Li plating and stripping,which limit the further development of lithium metal anodes(LMAs).Intro-ducing Ag-based materials in LMAs is regarded as one of the most effective solutions to solve the above-mentioned problems,which have received considerable attention because of their superior characteristics,such as high electrical conductivity,outstanding lithiophilicity,and excellent mechanical ***,we review the recent progress on the application of Ag-based materials in ***,the theo-retical mechanism of Ag-based materials and their advantages in LMAs are *** addition,the relationship between their fabrication strategies,micro/nanostructures,and electrochemical performances is systematically ***,the challenges and opportunities for the future research and appli-cation of Ag-based materials in lithium metal batteries are proposed based on the available academic knowledge.

关键词： Ag-based materials Nucleation sites Current collectors Lithium metal anodes Electrochemical performance

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Micropore engineering on hollow nanospheres for ultra-stable sodium-selenium batteries

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Journal of Energy Chemistry 2023年第5期80卷 99-109,I0004页

作者： Gongke Wang Yumeng Chen Yu Han Lixue Yang Wenqing Zhao Changrui Chen Zihao Zeng Shuya Lei Shaohui Yuan Peng Ge School of Materials Science and Engineering Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage MaterialsHenan Normal UniversityXinxiang 453007HenanChina Comprehensive Energy Research Center Institute of Science and TechnologyChina Three Gorges CorporationBeijing 100038China School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

Attracted by high energy density and considerable conductivity of selenium(Se),Na-Se batteries have been deemed promising energy-storage ***,it still suffers from sluggish kinetic behaviors and similar“shuttling effect”to ***,utilizing uniform hollow carbon spheres as precursors,Se-material is effectively loaded through vapor-infiltration *** to the distribution of optimized pores,the content of microspores could be up to~60%(<2 nm),serving important roles for the physical confinement ***,the rich oxygen-containing groups and N-elements could be noted,inducing the evolution of electron-moving *** significantly,assisted by the interfacial C-Se bonds and tiny Se distributions,Se electrodes are activated during *** as cathodes for Na-Se systems,the as-resulted samples display a capacity of 593.9 mA h g^(-1)after 100 cycles at the current density of 0.1 *** after 6000 cycles,the capacity could be still kept at about 225 mA h g^(-1)at 5.0 *** by the detailed kinetic analysis,the designed microspores size induces the increasing redox reaction of nano Se,whilst the surface traits further render the enhancement of pseudo-capacitive ***,after cycling,the product Sex(x<4)in pores serves as the primary active *** this,the work is anticipated to provide an effective strategy for advanced electrodes for Na-Se systems.

关键词： Carbon host Tailoring pores Heteroatom doping Vapor-infltration method Sodium-selenium batteries

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Advancing the pressure sensing performance of conductive CNT/PDMS composite film by constructing a hierarchical-structured surface

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Nano materials Science 2023年第4期5卷 343-350页

作者： Ye Zhao Taoyu Shen Minyue Zhang Rui Yin Yanjun Zheng Hu Liu Hongling Sun Chuntai Liu Changyu Shen Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhouHenan450002China China Astronaut Research and Training Center Beijing100094China

Flexible pressure sensors have attracted wide attention due to their applications to electronic skin,health monitoring,and human-machine ***,the tradeoff between their high sensitivity and wide response range remains a *** by human skin,we select commercial silicon carbide sandpaper as a template to fabricate carbon nanotube(CNT)/polydimethylsiloxane(PDMS)composite film with a hierarchical structured surface(h-CNT/PDMS)through solution blending and blade coating and then assemble the h-CNT/PDMS composite film with interdigitated electrodes and polyurethane(PU)scotch tape to obtain an h-CNT/PDMS-based flexible pressure *** on in-situ optical images and finite element analysis,the significant compressive contact effect between the hierarchical structured surface of h-CNT/PDMS and the interdigitated electrode leads to enhanced pressure sensitivity and a wider response range(0.1661 kPa^(-1),0.4574 kPa^(-1)and 0.0989 kPa^(-1)in the pressure range of 0–18 kPa,18–133 kPa and 133–300 kPa)compared with planar CNT/PDMS composite film(0.0066 kPa^(-1)in the pressure range of 0–240 kPa).The prepared pressure sensor displays rapid response/recovery time,excellent stability,durability,and stable response to different loading modes(bending and torsion).In addition,our pressure sensor can be utilized to accurately monitor and discriminate various stimuli ranging from human motions to pressure magnitude and spatial *** study supplies important guidance for the fabrication of flexible pressure sensors with superior sensing performance in next-generation wearable electronic devices.

关键词： Flexible pressure sensor Hierarchical structure Polydimethylsiloxane Carbon nanotubes Electronic skin

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Effect of annealing time on microstructure and mechanical properties of cryorolled AISI 310S stainless steel

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Journal of Iron and Steel research International 2023年第3期30卷 548-556页

作者： Xue-kui Lian Yong Li Yi Xiong Yong-li Wu Shun Han Tian-tian He Chun-xu Wang Feng-zhang Ren Central Iron and Steel Research Institute Co. Ltd.Beijing 100081China School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang 471023HenanChina Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Luoyang 471023HenanChina

AISI 310S stable austenitic stainless steel was subjected to 90%cryorolling and then annealed at 800 ℃ for 2-60 *** effect of annealing time on the microstructure and mechanical properties was studied by optical microscopy,scanning electron microscopy,transmission electron microscopy,microhardness and tensile *** results show that the grain size of AISI 310S stainless steel is refined to the nanometer level after 90%cryorolling,and the grain size is approximately 20 *** the increase in annealing time,the degree of grain recrystallization occurs more fully and completely,as the grain begins to grow and then tends to *** strength and hardness of the annealed specimens decrease with increasing annealing time,while elongation tends to *** the annealing time is 10 min,the yield strength increases by about 2 times compared to that of the original austenite(unrolled),and the elongation is also above 20%,which is the best preparation process for ultra-fine grain austenitic stainless steel under this experimental *** the annealing time treatment increases,the fracture morphology changes from mixed quasi-cleavage and ductile fracture(after cryorolling)to ductile fracture(after annealing).

关键词： Austenitic stainless steel Cryorolling Annealing time Microstructure Mechanical property

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In situ formed cross-linked polymer networks as dual-functional layers for high-stable lithium metal batteries

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Journal of Energy Chemistry 2023年第4期79卷 253-262页

作者： Lei Shi Wanhui Wang Chunjuan Wang Yang Zhou Yuezhan Feng Tiekun Jia Fang Wang Zhiyu Min Ji Hu Zhigang Xue School of Materials Science and Engineering School of Environmental Engineering and ChemistryLuoyang Institute of Science and TechnologyLuoyang 471023HenanChina Key Laboratory for Material Chemistry of Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina Key Laboratory of Advanced Materials Processing&Mold(Ministry of Education) National Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002HenanChina Henan Intelligent Manufacturing Engineering Technology Research Center for Building Profile Luoyang Institute of Science and TechnologyLuoyang 471023HenanChina Henan Province International Joint Laboratory of Materials for Solar Energy Conversion and Lithium Sodium based Battery Luoyang Institute of Science and TechnologyLuoyang 471023HenanChina

Lithium-metal anodes(LMAs)have been recognized as the ultimate anodes for next-generation batteries with high energy density,but stringent assembly-environment conditions derived from the poor moisture stability dramatically hinder the transformation of LMAs from laboratory to ***,an in situ formed cross-linked polymer layer on LMAs is designed and constructed by a facile thiol-acrylate click chemistry reaction between poly(ethylene glycol)diacrylate(PEGDA)and the crosslinker containing multi thiol groups under UV *** to the hydrophobic nature of the layer,the treated LMAs demonstrate remarkable humid stability for more than 3 h in ambient air(70%relative humidity).The coating humid-resistant protective layer also possesses a dual-functional characterization as solid polymer electrolytes by introducing lithium bis(trifluoromethanesulfonyl)imide in the system in *** intimate contact between the polymer layer and LMAs reduces interfacial resistance in the assembled Li/LiFePO_(4)or Li/LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)full cell effectively,and endows the cell with an outstanding cycle performance.

关键词： Lithium-metal anode Humid-resistant protective film Solid-state polymer electrolytes Cross-linked polymers

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Regulation of Zn2+solvation shell by a novel N-methylacetamide based eutectic electrolyte toward high-performance zinc-ion batteries

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材料科学技术（英文版） 2025年第8期211卷 53-61页

作者： Yong Liu Kaijia Feng Junmei Han Fei Wang Yibo Xing Feng Tao Haoming Li Binrui Xu Jiangtao Ji Hongxia Li School of Materials Science and Engineering Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing TechnologyHenan University of Science and TechnologyLuoyang 471023PR China Faculty of Engineering Huanghe Science & Technology UniversityZhengzhou 450063PR China School of Information Engineering Henan University of Science and TechnologyLuoyang 471023PR China College of Agricultural Equipment Engineering Henan University of Science and TechnologyLuoyang 471023PR China State Key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang 471039PR China

Aqueous Zn-ion batteries(AZIBs)have been regarded as promising alternatives to Li-ion batteries due to their advantages,such as low cost,high safety,and environmental ***,AZIBs face significant challenges in limited stability and lifetime owing to zinc dendrite growth and serious side reactions caused by water molecules in the aqueous electrolyte during *** address these issues,a new eutectic electrolyte based on Zn(ClO4)2·6H2O-N-methylacetamide(ZN)is proposed in this *** with aqueous electrolyte,the ZN eutectic electrolyte containing organic N-methylacetamide could regulate the solvated structure of Zn2+,effectively suppressing zinc dendrite growth and side *** a result,the Zn//NH4V4O10 full cell with the eutectic ZN-1-3 electrolyte demonstrates signif-icantly enhanced cycling stability after 1000 cycles at 1 A ***,this study not only presents a new eutectic electrolyte for zinc-ion batteries but also provides a deep understanding of the influence of Zn2+solvation structure on the cycle stability,contributing to the exploration of novel electrolytes for high-performance AZIBs.

关键词： Zinc-ion batteries Eutectic electrolyte Zn dendrites Suppressed side reactions Zn2+solvation structure Electrochemical performance

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Biodegradable Mg alloy modified with bioactive exosomes for cardiovascular stent application

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Journal of Magnesium and Alloys 2024年第12期12卷 4988-5004页

作者： Ya-chen Hou Jing-an Li Chang Cao Chang Su Zhen Qin Ge Zhang Jia-cheng Guo Jun-nan Tang Jin-ying Zhang Shao-kang Guan Department of Cardiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Henan Province Key Laboratory of Cardiac Injury and Repair ZhengzhouHenan 450052China Henan Province Clinical Research Center for Cardiovascular Diseases ZhengzhouHenan 450018China School of Material Science and Engineering&Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of materials processing and mold technology(Ministry of Education) Zhengzhou University100 Science RoadZhengzhou 450001China

Cardiovascular stent has been widely applied to treat cardiovascular disease(CVD),which is the major disease contribution to mortality in the world *** magnesium(Mg)alloys are the encouraging materials in cardiovascular stents benefit from absorbability and ***,the ability of degradation is a double-edged sword for manufacture stent,modifying the surface to decrease the excessive degradation rate and promote the surface endothelialization could expand the prospect of the further *** this work,the biodegradable Mg-Zn-Y-Nd alloy was modified by MgF_(2)and dopamine polymer film(PDA)as the corrosion resistance layer and the bonding layer respectively,and then the exosome,a natural nanoparticle contains m RNAs and proteins,was tailored to give the surface better *** electrochemical test and weight loss test reflected the MgF_(2)-PDA/exosome coating increase the corrosion resistance of the Mg-Zn-Y-Nd *** cytocompatibility data indicated the novel MgF_2-PDA/exosome coating selectively reduced the tumor necrosis factor(TNF-α)expression and ROS release from macrophage,and promoted theα-SMA expression of smooth muscle *** addition,the MgF_(2)-PDA/exosome coating also improved the adhesion,proliferation,CD31 expression and nitric oxide(NO)release of vascular endothelial cells(ECs),all of which contribute to the surface *** the mechanism experiments showed the exosome released from the coating uptake by the ECs and assemble around the lysosome and mitochondria,and the released rate of the exosome on the coating is around 5 to 7 days,indicating excellent multi-functions of MgF_(2)-PDA/exosome coating in cardiovascular stent.

关键词： Mg-Zn-Y-Nd alloy Endothelialization Surface modification MgF_(2)-PDA/exosome coating

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Synthesis and application of single-atom catalysts in sulfur cathode for high-performance lithium–sulfur batteries

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Chinese Chemical Letters 2023年第1期34卷 73-83页

作者： Yingjie Miao Yufan Zheng Feng Tao Zhijun Chen Yi Xiong Fengzhang Ren Yong Liu Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science and Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China School of Intelligent Manufacturing Ecosystem Xi’an Jiaotong–Liverpool UniversitySuzhou 215123China Luoyang Bearing Research Institute Co. Ltd.Luoyang 471039China

Lithium–sulfur(Li-S)batteries are regarded as one of the most promising energy storage devices because of their low cost,high energy density,and environmental ***,Li-S batteries suffer from sluggish reaction kinetics and serious“shuttle effect”of lithium polysulfides(LiPSs),which causes rapid decay of battery capacity and prevent their practical *** address these problems,introducing single-atom catalysts(SACs)is an effective method to improve the electrochemical performance of Li-S batteries,due to their high catalytic efficiency and definite active sites for *** this paper,we summarized the latest developments in enhancing the electrochemical performance of cathode for Li-S batteries through introducing different ***,we briefly introduced the catalytic mechanism of SACs and discussed the strategies of synthesizing SACs,including the spatial confinement strategy and the coordination design ***,the challenges and prospects in this field are *** believe that this review would help to design and fabricate high-performance Li-S batteries via introducing SACs and boost their practical application.

关键词： Single-atom catalysts Lithium-sulfur batteries Sulfur cathode Synthesis and application Polysulfide conversion Shuttle effect

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