| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7832686 | Acta Physico-Chimica Sinica | 2006 | 4 Pages |
Abstract
The electrooxidation behavior of formic acid on Pt-Ru/GC electrode was investigated by CV, chronoamperometry, and in-situ SERS. It was found that formic acid could dissociate spontaneously on Pt-Ru/GC electrode as it dissociated on rough Pt electrode, and produced strong absorption intermediates CO and reactive intermediaters -COOâ. The results show that Ru could improve the electro-catalytic activity of formic acid on Pt-Ru/GC electrode. As the ratio of Pt and Ru in deposition solution changed from 10:1 to 1:1, the oxidation potential of CO shifted negatively to about 60 mV(from 0.41 V to 0.35 V). Compared to rough Pt electrode, the oxidation potential of CO on Pt-Ru(1:1) shifted negatively 200 mV. These results indicate that SERS is hopeful to be a comprehensive spectroscopy tool of investigating the electro-catalytic reaction mechanism.
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Authors
Qiling Zhong, Peng Huang, Bin Zhang, Xiongyuan Yang, Yuemin Ding, Haihui Zhou, Bin Ren, Zhongqun Tian,