Elucidating intrinsic contribution of d-orbital states to oxygen evolution electrocatalysis in oxides.

ABSTRACT: Although numerous studies on oxide catalysts for an efficient oxygen evolution reaction have been carried out to compare their catalytic performance and suggest new compositions, two significant constraints have been overlooked. One is the difference in electronic conduction behavior between catalysts (metallic versus insulating) and the other is the strong crystallographic surface orientation dependence of the catalysis in a crystal. Consequently, unless a comprehensive comparison of the oxygen-evolution catalytic activity between samples is made on a crystallographically identical surface with sufficient electron conduction, misleading interpretations on the catalytic performance and mechanism may be unavoidable. To overcome these limitations, we utilize both metallic (001) LaNiO_3</

SUBMITTER: Yun TG 

PROVIDER: S-EPMC7865077 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature