| 光谱学与光谱分析 |
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| EQCM and in situ FTIR Studies on the Adsorption and Oxidation of 1-Butanol at a Platinum Electrode in Alkaline Media |
| CHEN Guo-liang1, 2, LIN Heng2, WEN Li1, ZHENG Zi-shan2, ZHOU Jian-zhang1, CHEN Sheng-pei1, LIN Zhong-hua1 |
1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005, China
2. Department of Chemistry, Zhangzhou Normal College, Zhangzhou 363000, China |
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Abstract The adsorption and oxidation of 1-butanol in alkaline media on a platinum electrode were investigated mainly by EQCM and in situ FTIR spectroscopy. The experimental results demonstrate that the electrooxidation of 1-butanol is closely relative to solution acidity. Since no chemically adsorbed species, such as CO, were evidenced by in situ FTIR spectroscopy, the adsorption of 1-butanol or its dissociative products on Pt surface is suggested by EQCM and CV data. Only one current peak of 1-butanol oxidation in PGPS was detected at -0.23 V/SCE, which illustrated the disappearance of the second current peak due to Pt electrode passivation in alkaline media. The final product of 1-butanol oxidation is only butyric acid anion under experimental condition. It may therefore be suggested that the main reaction occurring at the electrode is the oxidation of 1-butanol to butyric acid anion. The EQCM studies provide quantitative results of surface mass variation and have shed light on elucidating 1-butanol oxidation.
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Received: 2005-09-18
Accepted: 2005-12-28
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Corresponding Authors:
CHEN Guo-liang
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| Cite this article: |
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CHEN Guo-liang,LIN Heng,WEN Li, et al. EQCM and in situ FTIR Studies on the Adsorption and Oxidation of 1-Butanol at a Platinum Electrode in Alkaline Media[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(10): 1829-1832.
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https://www.gpxygpfx.com/EN/Y2006/V26/I10/1829 |
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