Separating bulk and surface processes in NiO<sub>x</sub> electrocatalysts for water oxidation
Sacha Corby, Miguel García‐Tecedor, Sven Tengeler, Céline Steinert, Benjamin Moss, Camilo A. Mesa, Hany Fathy Heiba, Anna A. Wilson, Bernhard Kaiser, Wolfram Jaegermann, Laia Francàs, Sixto Giménez, James R. Durrant
Abstract
Nickel oxyhydroxide electrocatalysts are highly active for water oxidation and swell when electrochemically activated. In this thickness dependence study, we find only the upper surface (<5 nm) is active during water oxidation catalysis.
Topics & Concepts
Non-blocking I/OCatalysisNickelMaterials scienceChemical engineeringSwellElectrocatalystInorganic chemistryRedoxElectrochemistryChemistryMetallurgyElectrodePhysical chemistryGeologyBiochemistryOceanographyEngineeringElectrocatalysts for Energy ConversionAdvanced battery technologies researchElectrochemical Analysis and Applications