期刊
NATURE COMMUNICATIONS
卷 12, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41467-021-23517-x
关键词
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资金
- National Key R&D Program of China [2018YFA0702003]
- National Natural Science Foundation of China [21890383, 21671117, 21871159, 21803036]
- Science and Technology Key Project of Guangdong Province of China [2020B010188002]
- Shandong Provincial Natural Science Foundation, China [ZR2018QB005]
- Young Scholars Program of Shandong University [2018WLJH49]
- Fundamental Research Funds of Beijing University of Chemical Technology [buctrc202107]
The study successfully prepared a mesoporous graphitic carbon nitride-supported dual-atom Pt-2 catalyst, which displayed excellent catalytic performance in the hydrogenation of nitrobenzene to aniline reaction, with a conversion rate higher than that of other comparative catalysts. This catalyst also shows potential applications in other important reactions.
Atomically monodispersed heterogeneous catalysts with uniform active sites and high atom utilization efficiency are ideal heterogeneous catalytic materials. Designing such type of catalysts, however, remains a formidable challenge. Herein, using a wet-chemical method, we successfully achieved a mesoporous graphitic carbon nitride (mpg-C3N4) supported dual-atom Pt-2 catalyst, which exhibited excellent catalytic performance for the highly selective hydrogenation of nitrobenzene to aniline. The conversion of (>)99% is significantly superior to the corresponding values of mpg-C3N4-supported single Pt atoms and ultra-small Pt nanoparticles (similar to 2 nm). First-principles calculations revealed that the excellent and unique catalytic performance of the Pt-2 species originates from the facile H-2 dissociation induced by the diatomic characteristics of Pt and the easy desorption of the aniline product. The produced Pt-2/mpg-C3N4 samples are versatile and can be applied in catalyzing other important reactions, such as the selective hydrogenation of benzaldehyde and the epoxidation of styrene.
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