Effect of the Dispersing Agent on the Electrochemical Response of Glassy Carbon Electrodes Modified with Dispersions of Carbon Nanotubes

被引：11

作者：

Gonzalez-Segura, Karina ^{[2
]}

Canete-Rosales, Paulina ^{[2
]}

del Rio, Rodrigo ^{[1
]}

Yanez, Claudia ^{[2
]}

Ferreyra, Nancy F. ^{[1
]}

Rivas, Gustavo A. ^{[1
]}

Bollo, Soledad ^{[2
]}

机构：

[1] Univ Nacl Cordoba, Fac Ciencias Quim, INFIQC, Dept Quim Fis, Ciudad Univ, RA-5000 Cordoba, Argentina

[2] Univ Chile, Fac Ciencias Quim & Farmaceut, Lab Bioelectroquim, Santiago, Chile

来源：

ELECTROANALYSIS | 2012年 / 24卷 / 12期

关键词：

Carbon nanotubes; Scanning electrochemical microscopy; Chitosan; Nafion; Hydrogen peroxide sensors; MICROSCOPY; REDUCTION;

D O I：

10.1002/elan.201200505

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical response of a glassy carbon electrode modified with carbon nanotubes (CNT) dispersed in two solvents, water and DMF, and two polymers, chitosan and Nafion is reported. The films were homogeneous when the dispersing agent was water or DMF. In the case of polymers, the surfaces present areas with different density of CNTs. A more sensitive electrochemical response was obtained when CNTs are dispersed in the solvents. In the case of CNT dispersed with polymers, the nature of the polymer demonstrated to be a critical parameter not only for dispersing the nanotubes but also for the electrochemical activity of the resulting electrodes.

引用

页码：2317 / 2323

页数：7

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