Tailoring Surface Frustrated Lewis Pairs of In₂O_3-x (OH)_y for Gas-Phase Heterogeneous Photocatalytic Reduction of CO₂ by Isomorphous Substitution of In³⁺ with Bi³.

ABSTRACT: Frustrated Lewis pairs (FLPs) created by sterically hindered Lewis acids and Lewis bases have shown their capacity for capturing and reacting with a variety of small molecules, including H₂ and CO₂, and thereby creating a new strategy for CO₂ reduction. Here, the photocatalytic CO₂ reduction behavior of defect-laden indium oxide (In₂O_3-x (OH) _y ) is greatly enhanced through isomorphous substitution of In³⁺ with Bi³⁺, providing fundamental insights into the catalytically active surface FLPs (i.e., In-OH···In) and the experimentally observed "volcano" relationship between the CO production rate and Bi³⁺ substitution level. According to density functional theo

SUBMITTER: Dong Y 

PROVIDER: S-EPMC6009996 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature