Preparation of Hydrogen Species and the Associated Reduction Properties under Electrochemical Processes on ZnO and Au/ZnO Electrodes

作     者：Wangyang Li Lufeng Yuan Qian Wen Mengyi Ci Zhen Zhang 李汪阳;袁路凤;文茜;慈梦怡;张镇

作者机构：Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China 

基　　金：supported by the National Key Re-search and Development Program of China(No.2021YFA1500403) the National Natural Science Foundation of China(No.21773047 and No.U1832180) partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报(英文))

年 卷 期：2025年第38卷第1期

页      码：73-80,I0032-I0039,I0056页

摘      要：ZnO-based catalysts have been widely used in hydrogenation reactions,but less attention has been paid to the electrocatalytic hydrogenation process on ZnO *** this work,the preparation of hydrogen species and the associ-ated reduction properties under electrochemi-cal processes in aqueous solutions have been in-vestigated on ZnO and Au/ZnO *** measurements of cyclic voltammetry(CV),X-ray diffraction,and electron paramagnetic resonance(EPR)confirm the formation of hydro-gen species on the interstitial sites(Hi)or on the oxygen vacancy sites(H_(O)).The hydrogena-tion reaction of p-nitrophenol(pNP)at 40μmol/L occurs on both ZnO and Au/ZnO elec-trodes,and the hydrogenation reduction performance of Au/ZnO electrode is better than that of ZnO *** show H_(O)species is much more reactive with pNP than Hi *** with the ZnO electrode,the presence of Au on ZnO promotes the formation of H_(O)species and improves the electro-reduction performance to *** results help us to un-derstand the reaction processes related to the electrochemical hydrogenation on ZnO and Au/ZnO surfaces and shed new light on the design of new catalytic hydrogenation systems.

主 题 词：Electrocatalytic hydrogenation Hydrogen species ZnO Au/ZnO p-Nitrophenol 

学科分类：081704[081704] 07[理学] 070304[070304] 08[工学] 0817[工学-轻工类] 0703[理学-化学类] 

核心收录：

D　O　I：10.1063/1674-0068/cjcp2404059

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