Carbon nanotubes and electrochemistry

被引：19

作者：

Esplandiu, M. J. ^{[1
]}

Pacios, M. ^{[1
]}

Bellido, E. ^{[1
]}

del Valle, M. ^{[1
]}

机构：

[1] Univ Autonoma Barcelona, Grp Sensores & Biosensores, Dept Quim, E-08193 Barcelona, Spain

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2007年 / 221卷 / 9-10期

关键词：

carbon nanotubes; functionalization; electrochemistry; biosensors; impedance spectroscopy;

D O I：

10.1524/zpch.2007.221.9-10.1161

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：

Rigid carbon nanotube (CNT) polymer composites were characterized as bare electrochemical transducers and as support for (bio)functionalization. In order to accomplish that, cyclic voltammetry and impedance spectroscopy in presence of benchmark redox systems were performed. The response and sensitivity can be enhanced if the density of edges is increased in the CNT systems. Bamboo-like CNTs seem to be the best choice for composite electrodes. Additionally, the CNT electrodes result in a very robust support for chemical functionalization. Direct electron transfer of myoglobin has been verified without the need of electrochemical mediators and without compromising the biomolecule activity. Finally, some other exciting applications of CNT electrochemistry at the nanoscale regime are also highlighted.

引用

页码：1161 / 1173

页数：13

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