Influence of progressive surface oxidation of nitrogen-containing carbon on its electrochemical behaviour in phosphate buffer solutions

被引：23

作者：

Pakula, M

Biniak, S

Swiatkowski, A

Neffe, S

机构：

[1] Nicholas Copernicus Univ, Fac Chem, PL-87100 Torun, Poland

[2] Naval Acad, PL-81103 Gdynia, Poland

[3] Mil Tech Acad, Inst Chem, PL-00908 Warsaw, Poland

来源：

CARBON | 2002年 / 40卷 / 11期

关键词：

activated carbon; electrochemical analysis; functional groups; surface properties;

D O I：

10.1016/S0008-6223(02)00030-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of the nitric acid surface oxidation of nitrogen-containing carbons (SCN-type) on the chemical structure as well as the electrochemical properties of powdered electrodes prepared from them were studied. The oxidation efficiency was dependent on the duration of the oxidative modification. The surface chemistry was characterized using standard neutralization techniques and spectroscopic methods (FTIR and XPS). Electrochemically active surface groups obtained on carbon materials during oxidation were investigated by cyclic voltammetry. Some noteworthy relations between the electrochemical activity of carbon electrode material and the degree of surface oxidation are reported. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1873 / 1881

页数：9

共 28 条

[1] SIMS XPS INVESTIGATIONS ON ACTIVATED CARBON CATALYST SUPPORTS [J].