Citation: Yue ZENG, Shao Min ZHOU. Electrocatalytic Oxidation of Hypophosphite on Nickel Electrode--In Situ UV-Vis Spectroscopic study[J]. Chinese Chemical Letters, ;1999, 10(10): 863-866. shu

Electrocatalytic Oxidation of Hypophosphite on Nickel Electrode--In Situ UV-Vis Spectroscopic study

Yue ZENG ¹ ,
Shao Min ZHOU ²

1.
Department of Chemistry Hunan Normal University Changsha 410006;
2.
State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry Xiamen University Xiamen 361005

Received Date: 22 February 1999

The electrocatalytic oxidation of hypophosphite on a nickel electrode has been studied by means of in situ UV-Vis subtractive reflectance spectroscopy. An absorbency band around 245 nm, which was ascribed to the formation of an intermediate,· PHO₂^-, was observed in the electrocatalytic oxidation process. Accordingly, the electrocatalytic oxidation of hypophosphite might undergo a H abstraction of hypophosphite from the P-H bond to form the phosphoruscentred radical, · PHO₂-, which is subsequently electrooxidized to the final product, phosphite.
- In situ UV-Vis subtractive reflectance spectroscopy,
- electrooxidation,
- hypophosphite,
- mechanism
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