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Platinum Single-Atom Nests Boost Solar-Driven Photocatalytic Non-Oxidative Coupling of Methane to Ethane
- Source :
- Journal of the American Chemical Society; August 2024, Vol. 146 Issue: 34 p24150-24157, 8p
- Publication Year :
- 2024
-
Abstract
- This work introduces a new strategy of a single-atom nest catalyst, whereby several single atoms are positioned closely, aiming to achieve the dual benefits of high atom-utilization efficiency while avoiding the steric hindrance in the coupling reaction. As a proof of concept, Pt single-atom nests, where the adjacent Pt single atoms are approximately 4 Å apart, are precisely engineered on the TiO2photocatalyst for photocatalytic non-oxidative coupling of methane. The Pt single-atom nest photocatalyst demonstrates remarkable activity, achieving a C2H6yield and turnover frequency of 251.6 μmol gcat–1h–1and 20 h–1, respectively, representing a 3.2-fold improvement compared to the Pt single-atom photocatalyst. Density functional theory calculations reveal that the Pt single-atom nest can significantly decrease the energy barrier for the activation of both CH4molecules in the coupling process.
Details
- Language :
- English
- ISSN :
- 00027863 and 15205126
- Volume :
- 146
- Issue :
- 34
- Database :
- Supplemental Index
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Periodical
- Accession number :
- ejs67146211
- Full Text :
- https://doi.org/10.1021/jacs.4c08901