From passivation to activation – tunable nickel/nickel oxide for hydrogen evolution electrocatalysis
Emma C. Lovell, Xunyu Lu, Qingran Zhang, Jason Scott, Rose Amal
Abstract
A novel, simple and controllable approach to designing NiO/Ni heterostructures supported on carbon for the hydrogen evolution reaction (HER) was utilized. By selectively oxidizing the Ni deposits, to differing degrees, the benefits of the NiO/Ni heterostructures were elucidated with the extent of Ni oxidation being a key factor in dictating performance.
Topics & Concepts
ElectrocatalystNickelPassivationNickel oxideMaterials scienceOxideHydrogenInorganic chemistryChemistryNanotechnologyElectrochemistryElectrodeMetallurgyPhysical chemistryOrganic chemistryLayer (electronics)Electrocatalysts for Energy ConversionAdvanced battery technologies researchElectrochemical Analysis and Applications