Electrochemical Impedance Spectroscopy of Dichlorophenols at Boron-doped Diamond Electrodes

被引：0
|
作者：
Lu Jiangwei [1 ]
Qu Youpeng [2 ]
Feng Yujie [3 ]
Liu Junfeng [3 ]
机构：
[1] Harbin Univ Commerce, Sch Pharm, Harbin 150076, Peoples R China
[2] Harbin Inst Technol, Sch Life Sci & Technol, Harbin 150080, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2016年 / 37卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Boron-doped diamond; Cyclic voltammetry; Electrochemical impedance spectroscopy; Dichlorophenol; Electrocatalysis; THIN-FILM; OXIDATION; ELECTROOXIDATION; DEGRADATION; ANODE;
D O I：
10.7503/cjcu20150369
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Cyclic voltammetry( CV) and electrochemical impedance spectroscopy( EIS) were used to investigate the electrocatalytic process of boron-doped diamond( BDD) electrode with 2,4-dichlorophenol(2,4-DCP) and 2, 6-dichlorophenol ( 2, 6-DCP) as target pollutants. Results showed that the oxidation potential of the 2,4-DCP and 2,6-DCP were 1. 55 and 1. 62 V, respectively. Equivalent circuit simulation results showed that the charge transfer resistance for the two DCPs were both decreased when the polarization potential increased from open circuit potential to 1. 5 V, indicating that electrocatalytic oxidation was favored by increasing potential. The diffusion step was the control step at oxidation potential. The indirect electrochemical oxidation of 2,4-DCP occurred more easily at BDD electrode than 2,6-DCP.
引用
收藏
页码：142 / 148
页数：7
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