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Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts
- Source :
- Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
- Publication Year :
- 2021
- Publisher :
- Nature Portfolio, 2021.
-
Abstract
- Activation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.
- Subjects :
- Multidisciplinary
Materials science
Science
Oxide
General Physics and Astronomy
chemistry.chemical_element
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Photochemistry
Antibonding molecular orbital
01 natural sciences
General Biochemistry, Genetics and Molecular Biology
Toluene oxidation
0104 chemical sciences
Catalysis
chemistry.chemical_compound
chemistry
Catalytic oxidation
Vacancy defect
0210 nano-technology
Platinum
Carbon nitride
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 12
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....0aec9e1ba46cd42e1dd88fe301ab94f6