Investigation of electro-oxidation activity of
Pt-CNTs/GC electrodes

doi:10.1007/s11458-008-0028-x

Front. Chem. China

2008, Vol. 3

Issue (2) : 148-151 https://doi.org/10.1007/s11458-008-0028-x

Investigation of electro-oxidation activity of Pt-CNTs/GC electrodes

ZHONG Qiling¹, ZHANG Bing¹, RAO Guishi¹, DING Yuemin¹, WANG Guofu¹, JIANG Yuxiong¹, REN Bing², TIAN Zhongqun²

1.College of Chemistry and Chemical Engineering, Jiangxi Normal University; 2.State Key Laboratory for Solid Surface Physical Chemistry, Department of Chemistry, Xiamen University;

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Abstract The morphology and structure of Pt-CNTs/GC electrodes were characterized via Transmission Electron Microscopy (TEM) and selected area electron diffraction. The electro-oxidation behavior of CO and methanol on Pt-CNTs/GC electrodes were studied with cyclic voltommograms or chronoamperometry. Three oxidation peaks were observed for CO absorbed on Pt-CNTs/GC electrodes. Methanol was found to be dissociated spontaneously on the electrode to produce a strong absorbed intermediate CO. Among the three oxidation peaks, peak I was presumed to be due to the bridged CO absorption while peaks II and III were attributed to the split in the linear CO which is absorbed on the Pt-CNTs/GC nanocluster with different particle size and Pt film. The oxidation current of methanol on the Pt-CNTs/GC electrode did not always increase with the increase in the amount of Pt loading. The result indicates that there is an optimal Pt loading for methanol oxidation. It is necessary to select the catalyst with proper Pt loading when the anode of a direct-methanol fuel cell is prepared.

Issue Date: 05 June 2008

Cite this article:

ZHANG Bing,ZHONG Qiling,REN Bing, et al. Investigation of electro-oxidation activity of Pt-CNTs/GC electrodes[J]. Front. Chem. China, 2008, 3(2): 148-151.

URL:

https://academic.hep.com.cn/fcc/EN/10.1007/s11458-008-0028-x
https://academic.hep.com.cn/fcc/EN/Y2008/V3/I2/148

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