Controllable adsorption of reduced graphene oxide onto self-assembled alkanethiol monolayers on gold electrodes: Tunable electrode dimension and potential electrochemical applications

Yang, Shunlong, Xu, Baofeng, Zhang, Jiaqi, Huang, Xiaodan, Ye, Jianshan and Yu, Chenzhong (2010) Controllable adsorption of reduced graphene oxide onto self-assembled alkanethiol monolayers on gold electrodes: Tunable electrode dimension and potential electrochemical applications. The Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 114 10: 4389-4393. doi:10.1021/jp911760b


Author Yang, Shunlong
Xu, Baofeng
Zhang, Jiaqi
Huang, Xiaodan
Ye, Jianshan
Yu, Chenzhong
Title Controllable adsorption of reduced graphene oxide onto self-assembled alkanethiol monolayers on gold electrodes: Tunable electrode dimension and potential electrochemical applications
Journal name The Journal of Physical Chemistry Part C: Nanomaterials and Interfaces   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2010-03-18
Sub-type Article (original research)
DOI 10.1021/jp911760b
Volume 114
Issue 10
Start page 4389
End page 4393
Total pages 5
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
This paper describes a facile and effective method to construct graphene nanosheet film (GNF) by controllable adsorption of reduced graphene oxide (rGO) onto the self-assembled monolayer (SAM) of n-octadecyl mercaptan (C18H37SH) at Au electrodes. Nyquist plots show a gradual decrease of the charge transfer resistance (Rct) of the [Fe(CN)6]3−/4− redox couple at the GNF/SAM electrode with prolonging the self-assembly time, suggesting the controllable adsorption of rGO onto the SAM. Cyclic voltammetry (CV) studies reveal that the GNF/SAM electrodes have tunable dimensions ranging from a nanoelectrode ensemble to a conventional electrode, depending on the self-assembly time of rGO. The excellent electrocatalytic activity of the GNF/SAM electrode toward ascorbic acid, dopamine, and uric acid further indicates that our approach is successful for the fabrication of stable GNF with excellent electrochemical properties, which is very attractive for electrochemical studies and electroanalytical applications. At the same time, as a new kind of nanosheet film electrode, the GNF electrode could be exploited in a new field for micro- and nanoelectrodes in electrochemical investigations and practical applications, e.g., electroanalysis in vivo and in vitro.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Tue, 18 Oct 2011, 00:10:07 EST by Professor Chengzhong Yu on behalf of Aust Institute for Bioengineering & Nanotechnology