Mitigating the Poisoning Effect of Formate during CO₂ Hydrogenation to Methanol over Co-Containing Dual-Atom Oxide Catalysts.

ABSTRACT: During the hydrogenation of CO₂ to methanol over mixed-oxide catalysts, the strong adsorption of CO₂ and formate poses a barrier for H₂ dissociation, limiting methanol selectivity and productivity. Here we show that by using Co-containing dual-atom oxide catalysts, the poisoning effect can be countered by separating the site for H₂ dissociation and the adsorption of intermediates. We synthesized a Co- and In-doped ZrO₂ catalyst (Co-In-ZrO₂) containing atomically dispersed Co and In species. Catalyst characterization showed that Co and In atoms were atomically dispersed and were in proximity to each other owing to a random distribution. During the CO₂ hydrogenation reaction, the Co atom was responsible for the adso

SUBMITTER: Dostagir NHM 

PROVIDER: S-EPMC10976564 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature