The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.
Structure Sensitivity of Au‐TiO2 Strong Metal–Support Interactions
Abstract
Strong metal–support interactions (SMSI) is an important concept in heterogeneous catalysis. Herein, we demonstrate that the Au‐TiO 2 SMSI of Au/TiO 2 catalysts sensitively depends on both Au nanoparticle (NP) sizes and TiO 2 facets. Au NPs of ca. 5 nm are more facile undergo Au‐TiO 2 SMSI than those of ca. 2 nm, while TiO 2 {001} and {100} facets are more facile than TiO 2{101} facets. The resulting capsulating TiO 2−x overlayers on Au NPs exhibit an average oxidation state between +3 and +4 and a Au‐to‐TiO 2−x charge transfer, which, combined with calculations, determines the Ti:O ratio as ca. 6:11. Both TiO 2−x overlayers and TiO 2−x‐Au interface exhibit easier lattice oxygen activation and higher intrinsic activity in catalyzing low‐temperature CO oxidation than the starting Au‐TiO 2 interface. These results advance fundamental understanding of SMSI and demonstrate engineering of metal NP size and oxide facet as an effective strategy to tune the SMSI for efficient catalysis.
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Strong metal-support interactions. Group 8 noble metals supported on titanium dioxide
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Control of metal-support interactions in heterogeneous catalysts to enhance activity and selectivity
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Metadata
- Authors
- Zhang, Y., Liu, J., Qian, K., Jia, A., Li, D., Shi, L., Hu, J., Zhu, J., & Huang, W.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-04-16
- Volume
- 60
- Issue
- 21
- Pages
- 12074-12081
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3135495448
- Cited by
- 341
- References
- 47
- FWCI
- 15.84
- Type
- journal article
- Language
- en
- Open access
- closed
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