In situ reconstructing thermally treated Bi2S3 nanorods in H2 followed by O2 enhances CO2 electroreduction

Abstract

An efficient electrocatalyst was farbricated by thermally treating Bi2S3 nanorod in H2 followed by O2, demonstrating much superior performance to prisitine Bi2S3 and the treated one just in H2 for CO2 electroreduction to formate with 39.5 mA cm-2 partial density at -1.0 VRHE and 97.7% maximum faradaic efficiency in H-cell.