Abstract
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, · PHO − 2 , 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 · PHO − 2 , which is subsequently reacted with water to form the final product, phosphite.
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