An EQCM Study of Water Adsorption and Oxidation on Pt Electrodes in Sulfate Acid Sulotions

Authors

Heng LIN, Department of Chemistry,Xiamen University,State Key Laboratory for Physical Chemistry of the Solid Surface,Xiamen 361005,China;
Sheng-pei CHEN
Jin-mei LIN, Department of Chemistry,Zhangzhou Normal College,Zhangzhou 363000,China,of Chemistry,Xiamen University,Xiamen 361005, China);
Ai-lan LIN, Department of Chemistry,Zhangzhou Normal College,Zhangzhou 363000,China,of Chemistry,Xiamen University,Xiamen 361005, China);
Guo-liang CHEN, Department of Chemistry,Zhangzhou Normal College,Zhangzhou 363000,China,of Chemistry,Xiamen University,Xiamen 361005, China);

Abstract

Simultaneous frequency and current responses during potential cycling of Pt electrode were measured in 0.1 mol·L-1 H2SO4 solution by using EQCM.Quantitative analysis of the mass change revealed that the increase of mass in the hydrogen and double_layer regions in a positive_going potential scan was due to water adsorption on the Pt electrode,further calculation indicated that water molecules adsorbed on Pt electrode in the double_layer regions through a low discharge quomodo .The EQCM studies provided quantitative results of surface mass variation during water adsorption and oxidation,and have thrown new light in elucidating the structure of double_layer between electrode and solution.

DOI Link

https://doi.org/10.61558/2993-074X.1483

Publication Date

2003-02-28

Online Available Date

2003-02-28

Revised Date

2003-02-28

Received Date

2003-02-28

Recommended Citation

Heng LIN, Sheng-pei CHEN, Jin-mei LIN, Ai-lan LIN, Guo-liang CHEN. An EQCM Study of Water Adsorption and Oxidation on Pt Electrodes in Sulfate Acid Sulotions[J]. Journal of Electrochemistry, 2003 , 9(1): 47-53.
DOI: 10.61558/2993-074X.1483
Available at: https://jelectrochem.xmu.edu.cn/journal/vol9/iss1/9