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Analytical Letters Volume 38, 2005 - Issue 11
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Electrochemistry

Electrocatalytic Phenol Oxidation on Mixed Pt‐RuO2 Nanoparticle Modified Electrode

Chi Hung Tzang Biochip Research Laboratory, Institute of Microsystems and Information Technology, Chinese Academy of Sciences, Shanghai, China
,
Cheuk‐Wing Li Biochip Research Laboratory, Institute of Microsystems and Information Technology, Chinese Academy of Sciences, Shanghai, China
,
Jianlong Zhao Biochip Research Laboratory, Institute of Microsystems and Information Technology, Chinese Academy of Sciences, Shanghai, China
&
Mengsu Yang Biochip Research Laboratory, Institute of Microsystems and Information Technology, Chinese Academy of Sciences, Shanghai, ChinaCorrespondence[email protected]
Pages 1735-1746 | Received 07 Apr 2005, Accepted 01 Jun 2005, Published online: 02 Feb 2007
 
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Abstract

Nanoscale Pt/RuO2 colloid with carbon paste support was synthesized and used to prepare a modified electrode for phenol detection. The results showed that the Pt/RuO2 catalyst has high activity for electrooxidation of phenol with reduced intermediate polymerization due to its significantly low potential for phenol oxidation. The detection limit was as low as 10−9 mol L−1 for the polishable Pt/RuO2/C paste electrode with good reproducibility.

Acknowledgments

This work is supported by Chinese Academy of Sciences and National Natural Science Foundation of China.

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