Determination of Isotherm for Acetate and Formate Adsorption at Pt（111） Electrode by Fast Scan Voltammetry

作     者：徐杰 林楚红 梅东 张尊彪 袁道福 陈艳霞 

作者机构：中国科学技术大学化学物理系合肥微尺度物质科学国家实验室筹合肥230026 

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

年 卷 期：2013年第26卷第2期

页      面：191-197,I0004页

核心收录：

学科分类：07[理学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was supported by one Hundred Talents' Program of the Chinese Academy of Science  the National Natural Science Foundation of China (No.20773116  No.21273215  and No.J1030412)  and 973 Program from theMinistry of Science and Technology of China (No.2010CB923302). Many Thanks to Prof. Shen Ye from Hokkaido university for the help in establishing techniques for single crystalline electro- chemistry 

主　　题：Adsorption Desorption Pt(lll) Acetate anion Formate anion 

摘      要：Fast scan voltammetry is an efficient tool to distinguish oxidative/reductive adsorp- tion/desorption from that for bulk reaction. In this work, we provide a methodology that the isotherm of oxidative/reductive adsorption desorption processes at electrode surface can be obtained using just one solution with relatively low reactant concentration, by taking the advantage of varying the potential scan rate （relative of the diffusion rate） to tune the adsorption rate and proper mathematic treatment. The methodology is demonstrated by taking acetate adsorption at Pt（lll） in acidic solution as an example. The possibility for extension of this method toward mechanistic studies of complicated electrocatalytic reactions is also given.