Enhanced oxygen evolution performance by the partial phase transformation of cobalt/nickel carbonate hydroxide nanosheet arrays in an Fe-containing alkaline electrolyte
Jinghua Liu, Li hualan, Jiayang Cai, Jingyan Liu, Yansheng Liu, Zijun Sun, Xiong He, Dezhi Qu, Xin Li
Abstract
Co 1 Ni 6 CH exhibits a good OER activity (η 50 = 256 mV, 51 mV/dec) and stability in 1 M KOH with partial phase transformation. Fe impurity in electrolyte can provide more active sites, improve electronic conductivity, and promote stability.
Topics & Concepts
ElectrolyteHydroxideCobaltNickelNanosheetPhase (matter)Oxygen evolutionCarbonateInorganic chemistryConductivityMaterials scienceCobalt hydroxideOxygenChemical engineeringChemistryElectrodeElectrochemistryNanotechnologyMetallurgyPhysical chemistryOrganic chemistryEngineeringElectrocatalysts for Energy ConversionAdvanced battery technologies researchElectrochemical Analysis and Applications