Volume 17, Issue 1 pp. 59-64
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Atomic Force Microscopic and Electrochemical Investigations of an Electrostatically Fabricated Single-Wall Carbon Nanotubes Modified Electrode

Xiaohu Qu

Xiaohu Qu

State Key Laboratory of Electroanalytical Chemistry, Changchun Institue of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China

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Zhangquan Peng

Zhangquan Peng

State Key Laboratory of Electroanalytical Chemistry, Changchun Institue of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China

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Yuling Wang

Yuling Wang

State Key Laboratory of Electroanalytical Chemistry, Changchun Institue of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China

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Shaojun Dong

Shaojun Dong

State Key Laboratory of Electroanalytical Chemistry, Changchun Institue of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China

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First published: 18 January 2005
Citations: 7

Abstract

Single-wall carbon nanotubes (SWNTs) sub-monolayer film has been prepared by simply electrostatically adsorbing nanotubes onto a 2-aminoethanethiol self-assembled monolayer (SAM) on a gold bead electrode. Tapping-mode atomic force microscopy (TM-AFM) is used to characterize the SWNT film, which exhibits that the orientation of SWNTs on the SAM is horizontal and the surface coverage is quite low. The SWNTs modified electrode shows nearly ideal electrochemical response to Fe(CN)/Fe(CN) redox probe. The electrode with such a low SWNTs coverage, however, shows good electrocatalytic behavior to cytochrome c.