Ionic Liquid-Modified Porous Organometallic Polymers as Efficient and Selective Photocatalysts for Visible-Light-Driven CO₂ Reduction.

ABSTRACT: In the photoreduction of CO₂ to CO, the competitive H₂ evolution is always inevitable due to the approximate reduction potentials of H⁺/H₂ and CO₂/CO, which results in poor selectivity for CO production. Herein, imidazolium-type ionic liquid- (IL-) modified rhenium bipyridine-based porous organometallic polymers (Re-POMP-IL) were designed as efficient and selective photocatalysts for visible-light CO₂ photoreduction to CO based on the affinity of IL with CO₂. Photoreduction studies demonstrated that CO₂ photoreduction promoted by Re-POMP-IL functioning as the catalyst exhibits excellent CO selectivity up to 95.5% and generate 40.1 mmol CO/g of Re-POMP-IL1.0 (obtained by providing equivalent [(5,5'-divin

SUBMITTER: Zhou ZH 

PROVIDER: S-EPMC7533041 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature