Dynamics and control of active sites in cobalt diselenide catalysts for overall water electrolysis
Yonggui Zhao, Nanchen Dongfang, Rolf Erni, Marcella Iannuzzi, Greta R. Patzke
Abstract
. Further operando spectroelectrochemical monitoring demonstrates that the in situ formation of highly disordered Co(IV) species is a common denominator of chalcogenide catalysts for the oxygen evolution reaction. This study illustrates the dynamic influence of local coordination geometries of the catalytically active centers on the underlying catalytic reaction kinetics.
Topics & Concepts
CatalysisActive siteOxygen evolutionChalcogenideInorganic chemistryChemistryWater splittingDensity functional theoryHydrogen productionElectrolysis of waterDiselenideCobaltMaterials sciencePhotochemistryMetalWater-gas shift reactionTransition metalHydrogenExothermic reactionReaction dynamicsActive oxygenAlkalinityMarcasiteChemical engineeringHydroniumIn situTungsten diselenideReaction intermediateHeterogeneous catalysisOxygenExfoliation jointElectrocatalysts for Energy ConversionMetalloenzymes and iron-sulfur proteinsAmmonia Synthesis and Nitrogen Reduction