Vacancy-fused multiple layers of copper sulfoselenide superstructures: a propitious HER electrocatalyst in acidic medium
Sangeetha Kumaravel, Dhirendra Kumar, Selvasundarasekar Sam Sankar, Arun Karmakar, Ragunath Madhu, Krishnendu Bera, Hariharan N. Dhandapani, Sreenivasan Nagappan, Sudip Chakraborty, Subrata Kundu
Abstract
A wet-chemically prepared ‘CuS–Se@Cu foam’ has been studied for acidic HER ( η 100 = 309 mV). The presence of oxygen vacancies and multiple layers induced maximum intercalation of electrolytes and supported a low Δ G H* value of −0.36 eV for HER.
Topics & Concepts
ElectrocatalystIntercalation (chemistry)CopperElectrolyteVacancy defectCatalysisMaterials scienceOxygenInorganic chemistryChemical engineeringChemistryCrystallographyMetallurgyElectrodePhysical chemistryElectrochemistryOrganic chemistryEngineeringChalcogenide Semiconductor Thin FilmsElectrocatalysts for Energy ConversionQuantum Dots Synthesis And Properties