Bismuth atom tailoring of indium oxide surface frustrated Lewis pairs boosts heterogeneous CO2 photocatalytic hydrogenation

The surface frustrated Lewis pairs (SFLPs) on defect-laden metal oxides provide catalytic sites to activate H 2 and CO 2 molecules and enable efficient gas-phase CO 2 photocatalysis. Lattice engineering of metal oxides provides a useful strategy to tailor the reactivity of SFLPs. Herein, a one-step...

Full description

Saved in:
Bibliographic Details
Published in:Nature communications 2020-11, Vol.11 (1), p.6095-6095, Article 6095
Main Authors: Yan, Tingjiang, Li, Na, Wang, Linlin, Ran, Weiguang, Duchesne, Paul N., Wan, Lili, Nguyen, Nhat Truong, Wang, Lu, Xia, Meikun, Ozin, Geoffrey A.
Format: Article
Language:English
Subjects:
119/118
140/146
147/143
639/4077/909/4101/4102
639/638/77/890
639/925/357/551
Active sites
Bismuth
Carbon dioxide
Charge efficiency
Charge transfer
Humanities and Social Sciences
Indium
Indium oxides
Ions
Metal oxides
multidisciplinary
Oxides
Photocatalysis
Refineries
Science
Science (multidisciplinary)
Shift reaction
Substitution reactions
Water gas
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The surface frustrated Lewis pairs (SFLPs) on defect-laden metal oxides provide catalytic sites to activate H 2 and CO 2 molecules and enable efficient gas-phase CO 2 photocatalysis. Lattice engineering of metal oxides provides a useful strategy to tailor the reactivity of SFLPs. Herein, a one-step solvothermal synthesis is developed that enables isomorphic replacement of Lewis acidic site In 3+ ions in In 2 O 3 by single-site Bi 3+ ions, thereby enhancing the propensity to activate CO 2 molecules. The so-formed Bi x In 2-x O 3 materials prove to be three orders of magnitude more photoactive for the reverse water gas shift reaction than In 2 O 3 itself, while also exhibiting notable photoactivity towards methanol production. The increased solar absorption efficiency and efficient charge-separation and transfer of Bi x In 2-x O 3 also contribute to the improved photocatalytic performance. These traits exemplify the opportunities that exist for atom-scale engineering in heterogeneous CO 2 photocatalysis, another step towards the vision of the solar CO 2 refinery. Surface frustrated Lewis pairs (SFLPs) provide a unique class of active sites that enable efficient gas-phase CO 2 photocatalysis. How to tailor the reactivity of the SFLPs represents a major challenge, which the authors address here by single-site Bi 3+ ion substitution of the SFLPs.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-020-19997-y