In situ UV-Vis spectroscopic study of the electrocatalytic oxidation of hypophosphite on a nickel electrode
- 化学化工－已发表论文 
The electrocatalytic oxidation of hypophosphite on a nickel electrode has been studied by means of in situ UV-Vis subtractive reflectance spectroscopy to obtain information about the anodic oxidation mechanism. An absorbency band around 245 nm, which was ascribed to the formation of an intermediate, (PHO2-)-P-., 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 phosphorus-centered radical (PHO2-)-P-., which is subsequently reacted with water to form the final product, phosphite. (C) 1999 Elsevier Science S.A. All rights reserved.