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Real-Time Detection of Sub-ppm Aromatic Compounds in Alcohol by Surface Plasmon Resonance Using Label-Free Graphene

Energy & Environmental materials 2025年第1期8卷 142-150页

作者： Sung Hwan Cho Jun Min Suh Wontaek Kim Jaehyun Kim Yeong Jae Kim Tae Hyung Lee Jae Young Kim Jaegun Sim Seung Won Choi Byung Hee Hong So Young Kim Ho Won Jang Department of Materials Science and Engineering Research Institute of Advanced MaterialsSeoul National UniversitySeoul 08826Korea Department of Mechanical Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA Infra Analysis Team Global Manufacturing&Infra TechnologySamsung ElectronicsHwaseong 18448Korea Department of Chemistry Seoul National UniversitySeoul 08826Korea

The increasing importance of high-purity isopropyl alcohol(IPA)in semiconductor processing technology has led to a higher demand for technologies capable of detecting impurities in *** accurate and various impurity detection technologies have been developed,most of them have limitations in real-time and repeatable detection of ***,for the first time,surface plasmon resonance(SPR)sensor was developed utilizing graphene transferred Au film(Au/graphene)to detect sub-ppm levels of 2,4-dinitrophenol(2,4-DNP)dissolved in IPA and this sensor demonstrates the ability to detect 2,4-DNP in real-time with great *** adsorption of 2,4-DNP to graphene is found to be stronger than that for Au film because of noncovalent graphene p–p stacking interaction,and the effect of graphene is demonstrated through density function theory(DFT)calculations and enhancement in sensing performance of Au/graphene ***,the presence of noncovalent p–p stacking interaction between 2,4-DNP and graphene has been demonstrated by confirming the p-doping effect of graphene-based solution field-effect transistor measurements and consecutive Raman spectra *** study offers experimental and theoretical insights into the adsorption kinetics of 2,4-DNP dissolved in IPA and provides promising perspectives for real-time sensing technology utilizing label-free graphene to detect impurities in high-purity cleaning agents.

关键词： density functional theory graphene liquid sensor surface plasmon resonance p-p stacking interaction

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Enhanced oxidation and overheating resistance of the extruded Mg–Zn–Al–Mn magnesium alloy by Calcium addition

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Journal of Magnesium and Alloys 2023年第4期11卷 1276-1291页

作者： Hanieh Yeganeh Ahmad Bahmani Mehrab Lotfpour Mehdi Malekan Masoud Emamy Behzad Nayebi Kwang Seon Shin School of Metallurgy and Materials Engineering College of EngineeringUniversity of TehranP.O.Box 11155-4563TehranIran Department of Advanced Materials and Renewable Energies Iranian Research Organization for Science and TechnologyTehranIran Department of Mechanical Engineering University of NevadaRenoRenoNV 89557USA Advanced Research and Technology of Magnesium(ARTofMag)Co. TehranIran Research Institute of Advanced Materials School of Materials Science and EngineeringSeoul National UniversityGwanak-guSeoul 08826Republic of Korea

The effects of Ca addition on the microstructure and oxidation properties of a new Mg alloy were *** oxidation behavior of the alloys was analyzed by thermal analysis and material characterization of the alloys exposed in flame environment;and both electrical and induction ***,the surface layers were characterized using field emission scanning electron microscopy,and X-ray diffraction *** was found that increasing the Ca addition reduces the grain size and increases the fraction of the secondary phases,and enhances the mechanical ***,increasing the Ca contents resulted in the formation of a dense CaO/MgO layer on the surface prohibited the oxygen diffusion and assisted in protection of the substrate against further ***,ignition temperature was increased from 680℃ to 890℃ after addition of the Ca *** mechanical properties and ignition behavior of the current materials was compared with the literature which it showed an excellent combination of the properties in the developed alloys.

关键词： Mg alloys Oxidation properties Ca addition Microstructure Intermetallic phases

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Ultra-strong and ductile precipitation-strengthened high entropy alloy with 0.5%Nb addition produced by laser additive manufacturing

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Journal of materials science & technology 2024年第20期187卷 195-211页

作者： Wei Zhang Ali Chabok Hui Wang Jiajia Shen J.P.Oliveira Shaochuan Feng Nobert Schell Bart J.Kooi Yutao Pei Advanced Production Engineering Engineering and Technology Institute GroningenFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747 AGthe Netherlands Nanostructured Materials and Interfaces Zernike Institute for Advanced MaterialsFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747 AGthe Netherlands UNIDEMI Department of Mechanical and Industrial EngineeringNOVA School Science and TechnologyUniversidade NOVA de LisboaCaparica 2829-516Portugal CENIMAT/I3N Department of Materials ScienceNOVA School of Science and TechnologyUniversidade NOVA de Lisboa2829-516 CaparicaPortugal School of Mechanical Engineering University of Science and Technology BeijingBeijing 100083China Institute of Materials Physics Helmholtz-Zentrum HereonMax-Planck-Str.1GeesthachtD-21502Germany

Achieving a superior strength-ductility combination for fcc single-phase high entropy alloys(HEAs)is *** present work investigates the in-situ synthesis of Fe_(49.5)Mn_(30)Co_(10)Cr_(10)C_(0.5)interstitial solute-strengthened HEA containing 0.5 wt.%Nb(hereafter referred to as iHEA-Nb)using laser melt-ing deposition(LMD),aiming at simultaneously activating multiple strengthening *** effect of Nb addition on the microstructure evolution,mechanical properties,strengthening and deformation mechanisms of the as-deposited iHEA-Nb samples was comprehensively *** levels of het-erogeneity were observed in the LMD-deposited microstructure,including different grain sizes,cellular subgrain structures,various carbide precipitates,as well as elemental *** incorporation of Nb atoms with a large radius leads to lattice distortion,reduces the average grain size,and increases the types and fractions of carbides,aiding in promoting solid solution strengthening,grain boundary strengthening,and precipitation *** test results show that the Nb addition significantly increases the yield strength and ultimate tensile strength of the iHEA to 1140 and 1450 MPa,respectively,while maintaining the elongation over 30%.Deformation twins were generated in the tensile deformed samples,contributing to the occurrence of twinning-induced *** outstanding combination of strength and ductility exceeds that for most additively manufactured HEAs reported to date,demon-strating that the present in situ alloying strategy could provide significant advantages for developing and tailoring microstructures and balancing the mechanical properties of HEAs while avoiding conventional complex thermomechanical *** addition,single-crystal micropillar compression tests revealed that although the twining activity is reduced by the Nb addition to the iHEA,the micromechanical prop-erties of grains with different orientations were signi

关键词： Laser additive manufacturing High entropy alloy In situ alloying Precipitation strengthening Deformation mechanism Mechanical properties

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Relaxor antiferroelectric-relaxor ferroelectric crossover in NaNbO_(3)-based lead-free ceramics for high-efficiency large-capacitive energy storage

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Chinese Chemical Letters 2024年第7期35卷 465-469页

作者： Shuangliang Xie Yuyue Chen Qing He Liang Chen Jikun Yang Shiqing Deng Yimei Zhu He Qi School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Advanced Innovation Center for Materials Genome Engineering Department of Physical ChemistryUniversity of Science and Technology BeijingBeijing 100083China School of Mathematics and Physics University of Science and Technology BeijingBeijing 100083China Department of Condensed Matter Physics and Materials Science Brookhaven National LaboratoryUptonNew York 11973United States

Relaxor ferroic dielectrics have garnered increasing attention in the past decade as promising materials for energy *** them,relaxor antiferroelectrics(AFEs)and relaxor ferroelectrics(FEs)have shown great promise in term of high energy storage density and efficiency,*** this study,a unique phase transition from relaxor AFE to relaxor FE was achieved for the first time by introducing strong-ferroelectricity BaTiO_(3)into NaNbO_(3)-BiFeO_(3)system,leading to an evolution from AFE R hierarchical nanodomains to FE polar nanoregions.A novel medium state,consisting of relaxor AFE and relaxor FE,was identified in the crossover of 0.88NaNbO_(3)–0.07BiFeO_(3)–0.05BaTiO_(3)ceramic,exhibiting a distinctive core-shell grain structure due to the composition *** harnessing the advantages of high energy storage density from relaxor AFE and large efficiency from relaxor FE,the ceramic showcased excellent overall energy storage *** achieved a substantial recoverable energy storage density W_(rec)~13.1 J/cm^(3)and an ultrahigh efficiencyη~88.9%.These remarkable values shattered the trade-off relationship typically observed in most dielectric capacitors between W_(rec)andη.The findings of this study provide valuable insights for the design of ceramic capacitors with enhanced performance,specifically targeting the development of next generation pulse power devices.

关键词： Relaxor ferroelectric Antiferroelectric Core-shell Energy storage High efficiency

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Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Xue-Qian Wang Feng-Qi Zhang Xiao-Ya Cui Bing-Bing Fan Jia-Ming Guo Zhi-Min Guo Rui Huang Wen Huang Xu-Bo Li Meng-Ru Li Yan Ma Zhi-Hua Shen Yong-Gang Sun De-Zhuang Wang Fei-Yang Wang Li-Qiang Wang Nan Wang Tian-Li Wang Wei Wang Xiao-Yang Wang Yi-Han Wang Fu-Jie Yu Yu-Zhen Yin Ling-Kun Zhang Yi Zhang Jian-Yang Zhang Qi Zhao Yu-Ping Zhao Xin-Dong Zhu Yasir Sohail Ya-Nan Chen Tao Feng Qi-Long Gao Hai-Yan He Yong-Jiang Huang Zeng-Bao Jiao Hua Ji Yao Jiang Qiang Li Xiao-Ming Li Wei-Bing Liao Huai-Jun Lin Hui Liu Qi Liu Qing-Feng Liu Wei-Di Liu Xiong-Jun Liu Yang Lu Yi-Ping Lu Wen Ma Xue-Fei Miao Jie Pan Qing Wang Hong-Hui Wu Yuan Wu Tao Yang Wei-Ming Yang Qian Yu Jin-Yu Zhang Zhi-Gang Chen Liang Mao Yang Ren Bao-Long Shen Xun-Li Wang Zhe Jia He Zhu Zhen-Duo Wu Si Lan School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China Department of Physics City University of Hong KongHongKong 999077China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Department of Mechanical Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong Kong 100872China Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221116China School of Physical Sciences Great Bay UniversityDongguan 523000China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon NeutralityUniversity of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China School of Computing Macquarie UniversitySydney 2113Australia Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China State Key Laborato

Owing to their exceptional properties,high-entropy alloys(HEAs)and high-entropy materials have emerged as promising research areas and shown diverse ***,the recent advances in the field are comprehensively reviewed,organized into five *** first section introduces the background of HEAs,covering their definition,significance,application prospects,basic properties,design principles,and *** subsequent section focuses on cutting-edge high-entropy structural materials,highlighting developments such as nanostructured alloys,grain boundary engineering,eutectic systems,cryogenic alloys,thin films,micro-nano-lattice structures,additive manufacturing,high entropy metallic glasses,nano-precipitate strengthened alloys,composition modulation,alloy fibers,and refractory *** the following section,the emphasis shifts to functional materials,exploring HEAs as catalysts,magneto-caloric materials,corrosion-resistant alloys,radiation-resistant alloys,hydrogen storage systems,and materials for ***,the review encompasses functional high-entropy materials outside the realm of alloys,including thermoelectric,quantum dots,nanooxide catalysts,energy storage materials,negative thermal expansion ceramics,and high-entropy wave absorption *** paper concludes with an outlook,discussing future directions and potential growth areas in the *** this comprehensive review,researchers,engineers,and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： High entropy alloys Cutting-edge structural materials Cutting-edgefunctional materials

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Mitigated reaction kinetics between lithium metal anodes and electrolytes by alloying lithium metal with low-content magnesium

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Journal of Energy Chemistry 2024年第8期95卷 644-650,I0014页

作者： Yang-Yang Wang Ya-Nan Wang Nan Yao Shu-Yu Sun Xiao-Qing Ding Chen-Xi Bi Qian-Kui Zhang Zhao Zheng Cheng-Bin Jin Bo-Quan Li Xue-Qiang Zhang Jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China College of Materials and Chemistry China Jiliang UniversityHangzhou 310018ZhejiangChina

Lithium(Li)metal is regarded as a promising anode candidate for high-energy-density rechargeable ***,Li metal is highly reactive against electrolytes,leading to rapid decay of active Li metal ***,alloying Li metal with low-content magnesium(Mg)is proposed to mitigate the reaction kinetics between Li metal anodes and *** atoms enter the lattice of Li atoms,forming solid solution due to the low amount(5 wt%)of *** atoms mainly concentrate near the surface of Mg-alloyed Li metal *** reactivity of Mg-alloyed Li metal is mitigated kinetically,which results from the electron transfer from Li to Mg atoms due to the electronegativity *** on quantitative experimental analysis,the consumption rate of active Li and electrolytes is decreased by using Mgalloyed Li metal anodes,which increases the cycle life of Li metal batteries under demanding ***,a pouch cell(1.25 Ah)with Mg-alloyed Li metal anodes delivers an energy density of 340 Wh kg^(-1)and a cycle life of 100 *** work inspires the strategy of modifying Li metal anodes to kinetically mitigate the side reactions with electrolytes.

关键词： Lithium metal anodes Alloying Anode/electrolyte interface Reaction kinetics Pouch cell

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PD-L1 targeted iron oxide SERS bioprobe for accurately detecting circulating tumor cells and delineating tumor boundary

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Chinese Chemical Letters 2025年第1期36卷 408-414页

作者： Ting Pan Dinghu Zhang Guomei You Xiaoxia Wu Chenguang Zhang Xinyu Miao Wenzhi Ren Yiwei He Lulu He Yuanchuan Gong Jie Lin Aiguo Wu Guoliang Shao Department of Interventional Radiology Zhejiang Cancer HospitalInstitute of Basic Medicine and Cancer(IBMC)Chinese Academy of SciencesHangzhou 310022China Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical Materials Technology and ApplicationChinese Academy of Science(CAS)Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo 315201China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China

Early diagnosis and accurate boundary delineation are the key steps of tumor precision *** tumor cells(CTCs)detection of liquid biopsy can provide abundant information for early diagnosis of *** detection specificity and good enrichment features are two key factors for CTCs accurate identification in peripheral blood *** this purpose,iron oxide(IO)-based surface-enhanced Raman scattering(SERS)bioprobes with good biocompatibility,high detection sensitivity,remarkable detection specificity,and good enrichment efficiency,were developed for detecting different types of *** SERS bioprobes combined with programmed death ligand-1(PD-L1)antibody are regarded as an effective way to boost the targeting ability and detection specificity,benefiting for accurately capturing and identifying rare *** types of CTCs with different PD-L1 expression were accurately distinguished among white blood cells via high-resolution SERS mapping images and stable Raman ***,CTCs blood samples obtained from the triple negative breast cancer patients were also successfully recognized compared to that of health people,indicating IO@AR@PDA-a PD-L1 SERS bioprobe possessed great potential for CTCs detection in liquid ***,IO-based bioprobe exhibited excellent dual-modal imaging abilities of high-resolution SERS imaging mode and microimaging magnetic resonance imaging *** two highly complementary imaging modes endowed IO-based bioprobes unrivalled capacity in tumor boundary differentiation,supporting tumor accurate resection and precise *** our best knowledge,this is the first time that biocompatible IO-based SERS bioprobes without noble metal element were reported not only for CTCs accurate detection,but also for precise tumor boundary delineation,showing great advantages in tumor diagnosis and treatment.

关键词： Circulating tumor cells Surface-enhanced Raman scattering PD-L1 Iron oxide bioprobe Dual-modal imaging Tumor boundaries delineation

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advanced 3D-printed antibacterial nano 58S bioglass/AgNPs/CeO2-based scaffolds for bone tissue engineering

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Ceramics International 2025年第15期51卷 20939-20953页

作者： Singh, Indrajeet Kong, Ing Viswakarma, Ashok Balani, Kantesh Advanced Polymer and Composite Materials Laboratory Department of Engineering School of Computing Engineering and Mathematical Sciences La Trobe University BendigoVIC3550 Australia Department of Materials Science and Engineering Indian Institute of Technology Kanpur208016 India Department of Mechanical Engineering Indian Institute of Technology Kanpur208016 India

58S bioglass (BG) has been considered an effective bioceramic in bone tissue engineering due to its good osteoinductive and osteoconductive properties;however, its poor antibacterial and printing properties remain a challenge in the development of ideal patient-specific, fully interconnected, bone-like scaffolds. To address this issue, this study presents novel 3D-printed BG/AgNPs/CeO2 (BGAC3D) composite scaffolds. These scaffolds exhibit a fully interconnected pore network (≈99 %) with a porosity of ≈64 % and optimally designed pore and strut sizes of 404 ± 15 μm and 394 ± 30 μm, respectively, making them suitable for bone healing applications. Adding AgNPs and ceria nanoparticles significantly increased the shear-thinning properties of Pluronic F-127/BG/AgNPs/CeO2-based ink, as compared to Pluronic F-127/BG-based ink. As a result, BGAC3D scaffold showed improved dimensional accuracy during printing relative to pristine BG. Nanoindentation studies revealed substantial increase in the mechanical properties of BGAC3D scaffolds, with elastic modulus, hardness, and compressive strength showing enhancement of 76 % (57.9 ± 8 GPa), 24 % (3.1 ± 1 GPa), and 275 % (1.5 ± 0.4 MPa), respectively. The antibacterial properties of BGAC3D scaffolds were investigated using disc diffusion and bacterial adhesion assays, which demonstrated an exceptional bactericidal efficacy of 99.3 % against Escherichia coli (E. coli) and 99.4 % against Staphylococcus aureus (S. aureus) compared to pristine BG. The cytocompatibility of the scaffolds was assessed using resazurin assays with mouse BMSCs and MTT assays with mouse fibroblasts, revealing enhanced cell viability for the BGAC3D composition compared to BG. Additionally, both BG and BGAC3D composites showed similar apatite mineralization on their surfaces, as observed under a scanning electron microscope. These findings indicate that BGAC3D scaffolds possess the necessary mechanical, antibacterial, and cytocompatibility properties, making th

关键词： Escherichia coli

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An inorganic liquid crystalline dispersion with 2D ferroelectric moieties

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National science Review 2024年第5期11卷 254-263页

作者： Ziyang Huang Zehao Zhang Rongjie Zhang Baofu Ding Liu Yang Keyou Wu Youan Xu Gaokuo Zhong Chuanlai Ren Jiarong Liu Yugan Hao Menghao Wu Teng Ma Bilu Liu Shenzhen Graphene Centre Shenzhen Key Laboratory of Advanced Layered Materials for Value-added ApplicationsTsinghua-Berkeley Shenzhen Institute and Institute of Materials ResearchTsinghua Shenzhen International Graduate School Tsinghua University Institute of Technology for Carbon Neutrality Faculty of Materials Science and Engineering Shenzhen Institute of Advanced Technology Chinese Academy of Sciences School of Physics and Institute for Quantum Science and Engineering School of Chemistry and Institute of Theoretical ChemistryHuazhong University of Science and Technology Xi'an Research Institute of High Technology Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Department of Applied Physics Hong Kong Polytechnic University

Electro-optical effect-based liquid crystal devices have been extensively used in optical modulation techniques, in which the Kerr coefficient reflects the sensitivity of the liquid crystals and determines the strength of the device's operational electric field. The Peterlin–Stuart theory and the O'Konski model jointly indicate that a giant Kerr coefficient could be obtained in a material with both a large geometrical anisotropy and an intrinsic polarization, but such a material is not yet reported. Here we reveal a ferroelectric effect in a monolayer two-dimensional mineral vermiculite. A large geometrical anisotropy factor and a large inherent electric dipole together raise the record value of Kerr coefficient by an order of magnitude, till 3.0 × 10-4mV-2. This finding enables an ultra-low operational electric field of10～2–10～4V m-1and the fabrication of electro-optical devices with an inch-level electrode separation, which has not previously been practical. Because of its high ultraviolet stability（decay <1% under ultraviolet exposure for 1000 hours）, large-scale production, and energy efficiency, prototypical displayable billboards have been fabricated for outdoor interactive scenes. This work provides new insights for both liquid crystal optics and two-dimensional ferroelectrics.

关键词： 2D materials layered minerals vermiculite ferroelectric inorganic liquid crystal Kerr coefficient

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Mechanically mixing copper and silver into self-supporting electrocatalyst for hydrogen evolution

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International Journal of Minerals,Metallurgy and materials 2023年第10期30卷 1906-1913页

作者： Xinzhuo Hu Zhe Liu Yi Feng Yongfeng Zhang Zhe Li Zhennan Chen Jing Mao Jing Yang Hui Liu Pengfei Yin Lei Cui Xiwen Du Institute of New Energy Materials School of Materials Science and EngineeringTianjin UniversityTianjin 300072China Institute of Advanced Welding Technology School of Materials Science and EngineeringTianjin UniversityTianjin 300072China Zijin Copper Co.LTD.Shanghang Country Longyan 364200China Department of Materials Science Fudan UniversityShanghai 200433China

Commercial hydrogen production involves the development of efficient hydrogen evolution reaction ***,we adopted a friction stir processing(FSP)technique to mix immiscible metals homogenously and obtain a self-supporting copper-silver(CuAg)*** gust of Ag atoms with larger atomic sizes caused a tensile strain in the Cu ***,the chemical-potential difference induced electron transfer from Cu to Ag,and the two factors jointly led to the upshift of Cu d-band and improved the catalytic ***,the CuAg electrode exhibited a high turnover frequency(12 times that of pure Cu),a low overpotential at high current density(superior to platinum foil),and high durability(1.57%decay over 180 h).Our work demonstrates that FSP is a powerful method for preparing self-supporting catalysts of immiscible alloys with high catalytic performance.

关键词： hydrogen evolution reaction catalyst friction stir processing strain electron transfer

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