Journal
NATURE COMMUNICATIONS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41467-020-19997-y
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Funding
- National Natural Science Foundation of China [21872081]
- Taishan Scholars Program of Shandong Province
- Youth Innovation and Technology Project of Shandong Province [2020KJC010]
- Ontario Ministry of Research and Innovation (MRI)
- Ministry of Economic Development, Employment and Infrastructure (MEDI)
- Ministry of the Environment and Climate Change's (MOECC)
- Best in Science (BIS) Award
- Ontario Center of Excellence (OCE) Solutions 2030 Challenge Fund
- Low Carbon Innovation Fund (LCIF)
- Imperial Oil
- University of Toronto Connaught Innovation Fund (CIF)
- Connaught Global Challenge (CGC) Fund
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- NSERC PDF program
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The surface frustrated Lewis pairs (SFLPs) on defect-laden metal oxides provide catalytic sites to activate H-2 and CO2 molecules and enable efficient gas-phase CO2 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 In3+ ions in In2O3 by single-site Bi3+ ions, thereby enhancing the propensity to activate CO2 molecules. The so-formed BixIn2-xO3 materials prove to be three orders of magnitude more photoactive for the reverse water gas shift reaction than In2O3 itself, while also exhibiting notable photoactivity towards methanol production. The increased solar absorption efficiency and efficient charge-separation and transfer of BixIn2-xO3 also contribute to the improved photocatalytic performance. These traits exemplify the opportunities that exist for atom-scale engineering in heterogeneous CO2 photocatalysis, another step towards the vision of the solar CO2 refinery.
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