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, China
Sheng-pei CHEN, Xiamen University, Xiamen 361005, China
Zhi-you ZHOU, Xiamen University, Xiamen 361005, China
Chun-hua ZHEN, Xiamen University, Xiamen 361005, China
Shi-gang SUN, Xiamen University, Xiamen 361005, ChinaFollow

Corresponding Author

Shi-gang SUN(sgsun@xmu.edu.cn)

Abstract

The adsorption and oxidation of ethanol on nm Pt/GC electrode in acid solutions containing 0.1 mol·L ^-1 H₂SO₄ +0.1 mol·L ^-1 CH₃CH₂OH was investigated by using cyclic voltammetry, EQCM and in situ FTIR spectroscopy. The experimental results demonstrated that the oxidation of CH₃CH₂OH is closely relaed to solution acidity and oxygen species on electrode surface; CH₃CH₂OH was oxidized on nm Pt/GC electrode in acidic media via a dual path reaction mechanism, i.e . CH₃CH₂OH may be oxidized into CO₂ through the dissociative adsorbate (CO) and the reactive intermediates that were determined by FTIRS as mainly CH₃CHO and CH₃COOH 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

2001-02-20

Received Date

2000-08-08

Recommended Citation

Guo-liang CHEN, Sheng-pei CHEN, Zhi-you ZHOU, Chun-hua ZHEN, Shi-gang SUN. 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