Stabilizing indium sulfide for CO₂ electroreduction to formate at high rate by zinc incorporation.

ABSTRACT: Recently developed solid-state catalysts can mediate carbon dioxide (CO₂) electroreduction to valuable products at high rates and selectivities. However, under commercially relevant current densities of > 200 milliamperes per square centimeter (mA cm^-2), catalysts often undergo particle agglomeration, active-phase change, and/or element dissolution, making the long-term operational stability a considerable challenge. Here we report an indium sulfide catalyst that is stabilized by adding zinc in the structure and shows dramatically improved stability. The obtained ZnIn₂S₄ catalyst can reduce CO₂ to formate with 99.3% Faradaic efficiency at 300 mA cm^-2 over 60 h of continuous operation without decay. By contrast, similarly syn

SUBMITTER: Chi LP 

PROVIDER: S-EPMC8492718 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature