Dual Active Sites Decorated Tungsten Trioxide for Photocatalytic Methane Oxidation
Abstract Photocatalytic oxidation of methane to formaldehyde offers an appealing pathway for utilizing the abundant methane resource, nevertheless, suffering from poor formaldehyde formation rate and selectivity. Here, nickel cluster decorated tungsten trioxide of three high surface energy facets is prepared for photocatalytic methane oxidation to formaldehyde with yield rate of 3.27 mmol g −1 h −1 , selectivity of 98.2% and turnover number of 20.65. The dual photohole centers of nickel cluster and lattice oxygen both could activate methane for selective formaldehyde formation. The lattice oxygen involves whole methane oxidation process on the catalyst surface based on an active site mechanism, while nickel cluster promotes formation of methyl radical and facilitates a radical mechanism in aqueous phase near the surface. These dual active sites provide an effective strategy to oxidize methane to formaldehyde under photoirradiation with water and oxygen gas.
Authors
- Xiaoxin Liu (ORCID: https://orcid.org/0000-0001-8297-6485)
- Dongxue Han (ORCID: https://orcid.org/0009-0003-2749-424X)
- Yuheng Jiang (ORCID: https://orcid.org/0000-0002-7160-0025)
- Zhiyong Tang (ORCID: https://orcid.org/0000-0001-6077-7274)
- Jiacheng Liang (ORCID: https://orcid.org/0000-0002-8788-5766)
- Shan Shan Qiu (ORCID: https://orcid.org/0000-0002-0616-9566)
- Yuping Wu (ORCID: https://orcid.org/0000-0002-0833-1205)
- Lijuan Zhang (ORCID: https://orcid.org/0000-0001-9829-2918)
- Wensheng Zhang (ORCID: https://orcid.org/0000-0002-9292-2867)
- Yingying Fan (ORCID: https://orcid.org/0000-0001-7944-2044)
- Li Niu (ORCID: https://orcid.org/0000-0003-3652-2903)
Institutions
- Sun Yat-sen University (CN)
- Guangzhou University (CN)
- National Center for Nanoscience and Technology (CN)
- Ruhr University Bochum (DE)
Publication Details
- Journal
- Advanced Energy Materials
- Published
- 2025-04-16
- DOI
- https://doi.org/10.1002/aenm.202406119
- Citations
- 9
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 4.66
Funders
- National Natural Science Foundation of China
- Guangdong Science and Technology Department
- Department of Education of Guangdong Province
- Guangzhou Municipal Science and Technology Bureau
- National Key Research and Development Program of China