Se-doping-induced sulfur vacancy engineering of CuCo<sub>2</sub>S<sub>4</sub> nanosheets for enhanced electrocatalytic overall water splitting
Bianli Zhang, Xingyue Qian, Hui Xu, Lin Jiang, Jiawei Xia, Haiqun Chen, Guangyu He
Abstract
Se doping and sulfur vacancies improve the intrinsic catalytic activity of CuCo 2 S 3.68 Se 0.32 . The optimized CuCo 2 S 3.68 Se 0.32 exhibits excellent HER and OER performance in alkaline media and requires 1.52 V at 10 mA cm −2 for overall water splitting.
Topics & Concepts
Vacancy defectDopingSulfurMaterials scienceWater splittingChemical engineeringNanotechnologyInorganic chemistryCatalysisOptoelectronicsChemistryCrystallographyMetallurgyEngineeringOrganic chemistryPhotocatalysisElectrocatalysts for Energy ConversionChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications