Improving hydrogen evolution reaction efficiency through lattice tuning  

作　　者：Zipeng Zhao Haotian Liu Wenpei Gao Praveen Kolla Wang Xue Zeyan Liu Jinghua Guo Sanjeev Mukerjee Xiaoqing Pan Qingying Jia Xiangfeng Duan Yu Huang 

机构地区：[1]Department of Materials Science and Engineering,University of California,Los Angeles,California 90095,USA [2]Department of Chemical Engineering and Materials Science,University of California,Irvine,California 92697,USA [3]Materials Science and Engineering,North Carolina State University,Raleigh,North Carolina 27695,USA [4]Department of Chemistry and Chemical Biology,Northeastern University,Boston,Massachusetts 02115,USA [5]Department of Chemistry and Biochemistry,University of California,Los Angeles,California 90095,USA [6]Advanced Light Source,Lawrence Berkeley National Laboratory,Berkeley,California 94720,USA [7]Department of Chemistry and Biochemistry,University of California,Santa Cruz,California 95064,USA [8]Department of Physics and Astronomy,University of California,Irvine,California 92697,USA [9]California Nanosystems Institute,University of California,Los Angeles,California 90095,USA

出　　处：《Nano Research》2024年第7期5907-5913,共7页纳米研究（英文版）

基　　金：supported by the National Science Foundation with grant numbers CBET 1159240,DMR-1420620,and DMR-1506535;Use of Beamline 7-BM(QAS)of the National Synchrotron Light Source(NSLS)II was supported by the NSLS-II,Brookhaven National Laboratory,under U.S.DOE Contract No.DESC0012704;supported by the DOE Office of Science under contract No.DE-AC02-05CH11231.

摘　　要：The intermittent nature of renewable energy sources sets a requirement for efficient energy storage to mitigate the conflict between energy supply and demand.Hydrogen is a promising choice for energy storage due to its high energy density.However,the conversion of electrical energy to chemical energy stored in hydrogen through water electrolysis suffers from low efficiency,and the electricity cost dominates the total cost of hydrogen production.Here,we report the study of improving the hydrogen evolution reaction activity of Pt-based catalysts by building a nanoscale surface NiO and Pt interface,further optimizing the performance via tuning the lattice parameter of the core of nanoparticles,which can be achieved by varying the dealloying annealing time.The optimized PtCuNi-O/C and PtNi-O/C catalysts are demonstrated to be one of the best catalysts,with a mass activity(MA)of 9.1 and 8.7 mA/μgPt,which is 9.9-fold and 9.5-fold of that of Pt/C,respectively.

关 键 词：lattice tuning Pt-based catalyst hydrogen evolution reaction ELECTROCATALYSIS 

分 类 号：O64[理学—物理化学]