Impacts on carbon dioxide electroreduction of cadmium sulfides via continuous surface sulfur vacancy engineering

Abstract

Cadmium sulfide (CdS) has been found to be a favorable electrocatalyst for CO₂ reduction owing to its appropriate binding energy of the key intermediates that originate from the CdS(002) surface with S vacancy (S_v). In this work, CdS nanorods with a medium S_v content (ca. 9%) give the highest CO Faraday efficiency of 100 ± 0.5% and a partial current density of −20.5 ± 0.2 mA cm⁻².