Accession Number : AD0761281

Title :   An Optical Study of the Growth and Oxidation of Nickel Hydroxide Films,

Corporate Author : WATERLOO UNIV (ONTARIO) DEPT OF PHYSICS

Personal Author(s) : Hopper,M. A. ; Ord,J. L.

Report Date : 27 SEP 1972

Pagination or Media Count : 6

Abstract : The formation and oxidation of nickel hydroxide films under a variety of experimental conditions are studied using in situ ellipsometric measurements. Two forms of the hydroxide, which we assume to be the alpha and beta forms reported by other workers, are found. The alpha- and beta-hydroxide layers are both transparent with real refractive indices of 1.52 and 1.46, respectively, at 6328A. Upon oxidation the two forms of hydroxide convert to different oxides, both of which absorb light. The process involved in the conversion of the beta-hydroxide appears to be similar to the process postulated for the charging of the nickel battery electrode. (Author)

Descriptors :   (*NICKEL COMPOUNDS, *ELECTROCHEMISTRY), ALKALINE BATTERIES, ELECTRODES, HYDROXIDES, OXIDATION, CANADA

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE