Defect-Rich,Candied Haws-Shaped AuPtNi Alloy Nanostructures for Highly Efficient Electrocatalysis  

作　　者：Xiaoya Cui Zhicheng Zhang Yue Gong Faisal Saleem Bo Chen Yonghua Du Zhuangchai Lai Nailiang Yang Bing Li Lin Gu Hua Zhang 

机构地区：[1]Department of Chemistry,City University of Hong Kong,Hong Kong,China [2]Center for Programmable Materials,School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore [3]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China,School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [4]National Synchrotron Light Source II,Brookhaven National Laboratory,Upton 11973,NY,USA [5]State Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Sciences Beijing 100190,China [6]Institute of Materials Research and Engineering(IMRE),A*STAR(Agency for Science,Technology and Research),Singapore 138634,Singapore

出　　处：《CCS Chemistry》2020年第1期24-30,共7页中国化学会会刊（英文）

基　　金：X.C.and Z.Z.contributed equally to this work.This work was supported financially by MOE under AcRF Tier 2(grant nos.MOE2015-T2-2-057,MOE2016-T2-2-103,and MOE2017-T2-1-162);AcRF Tier 1(grant nos.2016-T1-002-051,2017-T1-001-150,and 2017-T1-002-119);NTU under Start-Up Grant(no.M4081296.070.500000);Agency for Science,Technology and Research(A*STAR)under its AME IRG(Project No.A1783c0009)in Singapore.L.G.acknowledges the Key Research Program of Frontier Sciences,CAS(grant no.QYZDB-SSW-JSC035);National Natural Science Foundation of China(grant nos.51672307 and 51421002);We are thankful to the Facility for Analysis,Characterization,Testing and Simulation,Nanyang Technological University,Singapore,for the use of their electron microscopy(and/or X-ray)facilities.We would also like to thank 1W1B beamline of Beijing Synchrotron Radiation Facility(BSRF)for supporting this project.H.Z.thanks the support from ITC via the Hong Kong Branch of National Precious Metals Material Engineering Research Center and the Start-Up Grant from the City University of Hong Kong.This study used resources of the Advanced Photon Source,an Office of the Science User Facility,operated by the U.S.Department of Energy(DOE)Office of Science by Argonne National Laboratory and was supported by the U.S.DOE under contract no.DE-AC02-06CH11357;the Canadian Light Source and its funding partners.This research also used 7-BM of the National Synchrotron Light Source II,U.S.DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under contract no.DE-SC0012704.

摘　　要：The rational design and synthesis of multimetallic nanostructures(NSs)with rich defects are of significant importance for their diverse applications,including their promising usage as high-efficiency catalysts for alcohol oxidation reaction as a fuel source.Here,we report the synthesis of defect-rich,candied haws-shaped AuPtNi NSs using presynthesized gold(Au)nanowires as templates.The ternary AuPtNi NSs possess rich defects such as twins,stacking faults,and atomic steps.Impressively,the AuPtNi NSs exhibited excellent mass and specific activities toward methanol and ethanol oxidation reactions under acidic conditions.Our current work paves the way for the rational design and controlled synthesis of defect-rich multimetallic NSs to boost their performances in catalytic reactions.

关 键 词：noble metal alloy multimetallic nanostructure DEFECT ELECTROCATALYSIS 

分 类 号：O62[理学—有机化学]