A comparison of the electrocatalytic activities of ordered mesoporous carbons treated with either HNO3 or NaOH

被引：19

作者：

Bai, Jing ^{[1
]}

Bo, Xiangjie ^{[1
]}

Zhu, Dongxia ^{[1
]}

Wang, Guang ^{[1
]}

Guo, Liping ^{[1
]}

机构：

[1] NE Normal Univ, Fac Chem, Changchun 130024, Jilin, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 56卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ordered mesoporous carbon; Electrocatalysis; Acidic groups; Cyclic voltammetry; Nicotinamide adenine dinucleotide; NANOPOROUS CARBON; ELECTROCHEMICAL PROPERTIES; CHEMICAL OXIDATION; MOLECULAR-SIEVES; NANOTUBES; SILICA; IMMOBILIZATION; NANOPARTICLES; ELECTRODE; QUINONES;

D O I：

10.1016/j.electacta.2010.10.010

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ordered mesoporous carbon (OMC) was treated with HNO3 or NaOH. The two treated OMCs have many oxygen-containing functional groups. Those treated with HNO3 have more acidic surface groups than those treated with NaOH. Nicotinamide adenine dinucleoticle (NADH) and H2O2 were selected as marker molecules for the comparison of the electrocatalytic property of the OMCs. A comparison between the cyclic voltammograms shows that the oxidation peak potential of NADH is 0.614 V at a bare glassy carbon electrode (GCE), 0.205 V at OMC/GCE, 0.223 V at NaOH-treated OMC/GCE, and 0.0V at HNO3-treated OMC/GCE (vs.Ag/AgCl). The results indicate that the HNO3-treated OMC/GCE exhibits the highest electrocatalytic activity for NADH oxidation. Thus, acidic groups rather than other oxygen-containing functional groups, play a very important role in the catalytic activity of OMC. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：657 / 662

页数：6

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