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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

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碱性介质中正丁醇在铂电极上吸附和氧化的电化学原位FTIR反射光谱和EQCM研究.pdf (159.4Kb)
Date
2006
Author
Chen Guo-liang
陈国良
Lin Heng
林珩
Wen Li
文莉
Zheng Zi-shan
郑子山
Zhou Jian-zhang
周建章
Chen Sheng-pei
陈声培
Lin Zhong-hua
林仲华
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  • 化学化工-已发表论文 [14469]
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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.
Citation
SPECTROSCOPY AND SPECTRAL ANALYSIS,2006,26(10):1829-1832
URI
https://dspace.xmu.edu.cn/handle/2288/9924

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