Electrochemical oxidation of nitrite on nanodiamond powder electrode

被引：67
|
作者：
Chen, L. H. [1 ,2 ]
Zang, J. B. [1 ,2 ]
Wang, Y. H. [1 ,2 ]
Bian, L. Y. [1 ,2 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Yanshan Univ, Coll Mat Sci & Engn, Qinhuangdao 066004, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2008年 / 53卷 / 08期
关键词：
nanodiamond; powder electrode; nitrite; electrochemical oxidation;
D O I：
10.1016/j.electacta.2007.12.023
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Nanodiamond (ND) powder electrodes were fabricated and the electrochemical properties were investigated in the solution containing nitrite in this article. This electrode exhibits substantial catalytic ability toward the oxidation of nitrite anions. The electrochemical oxidation mechanism of nitrite on the ND powder electrode is discussed. The oxidation of NaNO2 is a two-electron transfer process. The electrode reaction rate constant k is estimated to be 2.013 x 10(-4) cm/s and (1 - alpha)n(alpha) is 0.1643. The peak current increases linearly with the rising of the concentration of NaNO2. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3442 / 3445
页数：4
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