THE ADSORPTION OFBiIII/PtNANOCOMPOSITES AT PLATINUM ELECTRODE WITH HIGHLY ENHANCED ELECTROCATALYSIS TOWARD GLUCOSE

Zhuoyuan Yang, Yuqing Miao (), Tianrui Wang, Mingshu Xiao, Xiaocai Liang, Yang Yang and Weiwei Li
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Zhuoyuan Yang: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
Yuqing Miao: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
Tianrui Wang: China University of Political Science and Law, Beijing 100088, P. R. China
Mingshu Xiao: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
Xiaocai Liang: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
Yang Yang: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
Weiwei Li: University of Shanghai for Science and Technology, Shanghai 200093, P. R. China

Surface Review and Letters (SRL), 2014, vol. 21, issue 03, 1-9

Abstract: In this paper, we first fabricated a nanoPt modified platinum electrode. Then through a simple method, the electrode surface was introduced with a submonolayer of bismuth that acted as an effective promoter. Cyclic voltammetry and other characterizations were employed. The obtainedBiIII/nanoPt/Ptelectrode exhibited two greatly increased oxidation peaks at negative and positive potential areas, respectively. The signals were far larger than that of platinum electrode because of the large true surface area of nanoparticles and the catalysis of bismuth adsorbed on platinum. In the presence of bismuth, the platinum active sites could combine with moreOH-from bismuth hydroxyl to form a new active site for the oxidation of glucose. The preparedBiIII/nanoPt/Ptelectrode given high sensitivity and excellent linearship to glucose detection and showed the potential application in the areas of electrocatalysis or electroanalysis.

Keywords: Bismuth; platinum nanoparticles; glucose; self-adsorption; electrocatalysis (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X14500425

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