Electronic modulation of cobalt phosphide by lanthanum doping for efficient overall water splitting in alkaline media
Dae-Kyu Kim, Yuan Yuan, Lawrence Yoon Suk Lee
Abstract
The La-doping regulates the electronic structure of CoP, promoting its HER and OER activities. A La–CoP-based water electrolyzer requires a cell voltage of 1.608 V at 10 mA cm −2 in alkaline media, which outperforms a noble metal-based electrolyzer.
Topics & Concepts
ElectrolysisPhosphideDopingLanthanumCobaltAlkaline water electrolysisMaterials scienceWater splittingIndium phosphideInorganic chemistryMetalChemistryOptoelectronicsMetallurgyElectrodePhysical chemistryGallium arsenideCatalysisElectrolytePhotocatalysisBiochemistryElectrocatalysts for Energy ConversionHydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen Reduction