On the Homogeneity of a Cobalt-Based Water Oxidation Catalyst.

ABSTRACT: The homogeneity of molecular Co-based water oxidation catalysts (WOCs) has been a subject of debate over the last 10 years as assumed various homogeneous Co-based WOCs were found to actually form CoO _x under operating conditions. The homogeneity of the Co(HL) (HL = N,N-bis(2,2'-bipyrid-6-yl)amine) system was investigated with cyclic voltammetry, electrochemical quartz crystal microbalance, and X-ray photoelectron spectroscopy. The obtained experimental results were compared with heterogeneous CoO _x . Although it is shown that Co(HL) interacts with the electrode during electrocatalysis, the formation of CoO _x was not observed. Instead, a molecular deposit of Co(HL) was found to be formed on the e

SUBMITTER: Boer DD 

PROVIDER: S-EPMC9016703 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature