Adsorption and oxidation of ethanol on nm-Pt/GC electrode II. EQCM and In-situ FTIR spectroscopic studies in acid media

Authors

Guo liang CHEN, Dept. of Chem., Zhangzhou Nornal College, Zhangzhou 363000) CHEN Sheng?pei, ZHOU Zhi?you, ZHEN Chun?hua,SUN Shi?gang  (State Key Lab. for Phys. Chem. of Solid Surfaces, Dept. of Chem., Xiamen Univ., Xiamen 361005,China;

Abstract

The adsorption and oxidation of ethanol on nm?Pt/GC electrode in acid solutions containing 0.1 mol·L -1 H 2SO 4 +0.1 mol·L -1 CH 3CH 2OH was investigated by using cyclic voltammetry , EQCM and in?situ FTIR spectroscopy. The experimental results demonstrated that the oxidation of CH 3CH 2OH is closely relaed to solution acidity and oxygen species on electrode surface; CH 3CH 2OH was oxidized on nm?Pt/GC electrode in acidic media via a dual path reaction mechanism, i.e . CH 3CH 2OH may be oxidized into CO 2 through the dissociative adsorbate (CO) and the reactive intermediates that were determined by FTIRS as mainly CH 3CHO and CH 3COOH species.

Keywords

nm?Pt/GC, Electrooxidation, Ethanol, In?situ FTIRS, EQCM

DOI Link

https://doi.org/10.61558/2993-074X.1416

Publication Date

2001-02-28

Online Available Date

2001-02-28

Revised Date

2001-02-28

Received Date

2001-02-28

Recommended Citation

Guo liang CHEN. Adsorption and oxidation of ethanol on nm-Pt/GC electrode II. EQCM and In-situ FTIR spectroscopic studies in acid media[J]. Journal of Electrochemistry, 2001 , 7(1): 96-101.
DOI: 10.61558/2993-074X.1416
Available at: https://jelectrochem.xmu.edu.cn/journal/vol7/iss1/7

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