A 3D hierarchical electrocatalyst:Core–shell Cu@Cu(OH)_(2)nanorods/MOF octahedra supported on N-doped carbon for oxygen evolution reaction  

作　　者：Xinran Li Yipei Li Changli Wang Huaiguo Xue Huan Pang Qiang Xu 

机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225009,China [2]Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials(SKLPM),SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory(SKAEM-JIL),Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong,Department of Chemistry,Department of Materials Science and Engineering and SUSTech Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology(SUSTech),Shenzhen 518055,China

出　　处：《Nano Research》2023年第5期8012-8017,共6页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.U1904215 and 21875207);the Natural Science Foundation of Jiangsu Province(No.BK20200044);the Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials(SKLPM,No.ZDSYS20210709112802010).

摘　　要：Cu-based materials are seldom reported as oxygen evolution reaction(OER)electrocatalysts due to their inherent electron orbital configuration,which makes them difficult to adsorb oxygen-intermediates during OER.Reasonably engineering the hierarchical architectures and the electronic structures can improve the performance of Cu-based OER catalysts,such as constructing multilevel morphology,inducing the porous materials,improving the Cu valence,building heterostructures,doping heteroatoms,etc.In this work,copper-1,3,5-benzenetricarboxylate(HKUST-1)octahedra in-situ grow on the Cu nanorod(NR)-supported N-doped carbon microplates,meanwhile an active layer of Cu(OH)_(2)forms on the surface of the original conductive Cu NRs.The octahedral HKUST-1,serving as a spacer between the microplates,greatly improves the porosity and increases the available active sites,facilitating the mass transport and electron transfer,thus resulting in greatly enhanced OER performance.

关 键 词：core–shell nanorod Cu@Cu(OH)_(2) metal–organic framework oxygen evolution reaction 

分 类 号：O641.4[理学—物理化学] O643.36[理学—化学]