Electrochemical energy storage application of CuO/CuO@Ni–CoMoO_(4)⋅0.75H_(2)O nanobelt arrays grown directly on Cu foam  

作　　者：Bingbing Zhang Qian Liu Kaibing Xu Rujia Zou Chunrui Wang 

机构地区：[1]Department of Physics,Donghua University,Shanghai,201620,China [2]Research Center for Analysis and Measurement,Donghua University,Shanghai,201620,China [3]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai,201620,China

出　　处：《Progress in Natural Science:Materials International》2022年第2期163-170,共8页自然科学进展·国际材料（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.11804048 and 11974074).

摘　　要：Supercapacitors are attracting huge research interest because they are expected to achieve battery-level energy density,and they have a longer calendar life and shorter charging time.However,due to the out shell materials without contact extra freeway for charge transports,the out shell materials have still limited contribution to high capacitance for array structure at high rates.Here,CO/CO@Ni-CMO NBs were designed and synthesized on Cu foam substrates with CuO NBs as cores or extra freeway and Ni–CoMoO_(4)⋅0.75H_(2)O nanobelt as shell by an easily synthetic method.CuO NBs will provide electron“superhighways”and extra outside freeway for charge storage and delivery.Besides,the Ni doped CoMoO_(4)⋅0.75H_(2)O NBs are conducive to the electrical conductivity,and open space among these nanosheets can act as an“ion reservoir”,the increment of active sites and the contribution of capacitive effects.Finally,the CO@Ni-CMO NBs directly grown on Cu foam could avoid the“dead”volume caused by the tedious process of mixing active materials with polymer binders/conductive additives.As expected,the CO/CO@Ni-CMO NBs exhibited the high specific capacitance,the good rate performance and the excellent electrochemical stability.

关 键 词：CuO/CuO@Ni–CoMoO_(4)⋅0.75H_(2)O Nanobelt arrays Multipath transfer electrons High specific capacitance Cyclic stability 

分 类 号：TM53[电气工程—电器] TG146.11[一般工业技术—材料科学与工程] TB383.1[金属学及工艺—金属材料]