Mechanistic Study of Oxidation of Hypophosphite on Pt Electrodes by SNIFTIRS

Authors

Tai-xiang JIANG, Dept. of Chem., State Key Lab. for Phys. Chem. of the Solid Surfaces,Xiamen Univ., Xiamen 361005, China;
Hui-huang WU, Dept. of Chem., State Key Lab. for Phys. Chem. of the Solid Surfaces,Xiamen Univ., Xiamen 361005, China;

Corresponding Author

Hui-huang WU

Abstract

The oxidation of hypophosphite on a polycrystalline platinum electrode was studied by SNIFTIRS and cyclic voltammetry, the in-situ IR spectra were analyzed as a function of Pt electrode potentials in the solution of 0.5 mol/L H 2SO 4+0.1 mol/L NaH 2PO 2. It was found that the dissociative adsorption of hypophosphite ions occurs on Pt surface, and the oxidation product is H 3PO 4, rather than H 2PO 3 - which was considered to produce on Ni electrodes, thereby a new insight into mechanism of hypophosphite oxidation on Pt in acidic media was provided.

Keywords

Hypophosphite, Electro-oxidation, Electoless plating, Platinum electrode, SNIFTIRS

DOI Link

https://doi.org/10.61558/2993-074X.1467

Publication Date

2002-11-28

Online Available Date

2002-11-28

Revised Date

2002-11-28

Received Date

2002-11-28

Recommended Citation

Tai-xiang JIANG, Hui-huang WU. Mechanistic Study of Oxidation of Hypophosphite on Pt Electrodes by SNIFTIRS[J]. Journal of Electrochemistry, 2002 , 8(4): 376-380.
DOI: 10.61558/2993-074X.1467
Available at: https://jelectrochem.xmu.edu.cn/journal/vol8/iss4/1

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