文献类型：期刊文献

英文题名：Understanding the Dynamic Potential Distribution at the Electrode Interface by Stochastic Collision Electrochemistry

作者：Lu, Si-Min[1,2];Chen, Jian-Fu[3,4];Peng, Yue-Yi[1,2];Ma, Wei[2];Ma, Hui[1,2];Wang, Hai-Feng[4,5];Hu, Peijun[4,5,6];Long, Yi-Tao[1,2]

机构：[1]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Ctr Computat Chem, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, State Key Lab Chem Engn, Ctr Computat Chem, Shanghai 200237, Peoples R China;[6]Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

年份：2021

卷号：143

期号：32

起止页码：12428

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20213410802025);WOS:【SCI-EXPANDED(收录号:WOS:000686555000003)】；

基金：This research was supported by the National Natural Science Foundation of China (22090051, 22027806, 21703067, 21775043, 92045303), the Shanghai Municipal Natural Science Fund (19ZR1472100), and the China Postdoctoral Science Foundation (2021M691506, 2019TQ0143, 2019M660108). We thank Professors Bin Su (Zhejiang University) and Dongping Zhan (Xiamen University) for the helpful discussion in theoretical simulation. Our special thanks go to Professor Fei Li and her group at Xi'an Jiaotong University for their professional help in Scanning Electrochemical Microscopy experiments.

语种：英文

外文关键词：Charge transfer - Stochastic systems - Metal nanoparticles - Electrodes

摘要：The potential distribution at the electrode interface is a core factor in electrochemistry, and it is usually treated by the classic Gouy-Chapman-Stern (G-C-S) model. Yet the G-C-S model is not applicable to nanosized particles collision electrochemistry as it describes steady-state electrode potential distribution. Additionally, the effect of single nanoparticles (NPs) on potential should not be neglected because the size of a NP is comparable to that of an electrode. Herein, a theoretical model termed as Metal-Solution-Metal Nanoparticle (M-S-MNP) is proposed to reveal the dynamic electrode potential distribution at the single-nanoparticle level. An explicit equation is provided to describe the size/distance-dependent potential distribution in single NPs stochastic collision electrochemistry, showing the potential distribution is influenced by the NPs. Agreement between experiments and simulations indicates the potential roles of the M-S-MNP model in understanding the charge transfer process at the nanoscale.