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The Electrochemical Properties of Thionine Adsorbed Monolayer on Gold Electrode
被引：0
作者：
Fang Cheng Liu Yue lin Zhou Xing yao College of Chemistry and Molecular Science Wuhan University Wuhan China
[430072
]
机构：
关键词：
thionine;
monolayer;
ac impedance;
voltammetry;
D O I：
暂无
中图分类号：
O657.1 [电化学分析法];
学科分类号：
070302 ;
081704 ;
摘要：
A gold electrode modified with adsorbed thionine monolayer was investigated with ac impedance and cyclic voltammetry method. It was found there were some different redox properties for the adsorbed thionine depended on the different potential scanning rate. At the slower potential scanning rate (10 mV·s -1 ), the dimer of thionine appeared and possessed the catalytic activity for the oxidation of ascorbic acid. The underpotential deposition (UPD) and the bulk deposition of Cu 2+ were also employed to investigate the monolayer of adsorbed thionine.
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页码：846 / 850
页数：5
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