Photo-fluorination of nanodiamonds catalyzing oxidative dehydrogenation reaction of ethylbenzene.

ABSTRACT: Styrene is one of the most important industrial monomers and is traditionally synthesized via the dehydrogenation of ethylbenzene. Here, we report a photo-induced fluorination technique to generate an oxidative dehydrogenation catalyst through the controlled grafting of fluorine atoms on nanodiamonds. The obtained catalyst has a fabulous performance with ethylbenzene conversion reaching 70% as well as styrene yields of 63% and selectivity over 90% on a stream of 400 °C, which outperforms other equivalent benchmarks as well as the industrial K-Fe catalysts (with a styrene yield of 50% even at a much higher temperature of ca. 600 °C). Moreover, the yield of styrene remains above 50% after a 500 h test. Experimental characterizations and density functional theory calculations reveal that the

SUBMITTER: Luo Z 

PROVIDER: S-EPMC8586349 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature