Direct Methylation of Benzene with Methane Catalyzed by Co/MFI Zeolite

Cobalt‐loaded MFI zeolite showed distinct activity for direct methylation of benzene with methane into toluene. High activity was found at around 0.6 of Co/Al molar ratio. Incorporation of carbon from methane into the methyl group of toluene was confirmed with isotope tracer experiments and mass spe...

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Detalles Bibliográficos
Autores principales: Nakamura, Koshiro, Okuda, Akihito, Ohta, Kiyotaka, Matsubara, Hitoshi, Okumura, Kazu, Yamamoto, Kana, Itagaki, Ryosuke, Suganuma, Satoshi, Tsuji, Etsushi, Katada, Naonobu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Full Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282706/
https://www.ncbi.nlm.nih.gov/pubmed/30546494
http://dx.doi.org/10.1002/cctc.201800724
Descripción
Sumario:Cobalt‐loaded MFI zeolite showed distinct activity for direct methylation of benzene with methane into toluene. High activity was found at around 0.6 of Co/Al molar ratio. Incorporation of carbon from methane into the methyl group of toluene was confirmed with isotope tracer experiments and mass spectroscopy. Ammonia infrared‐mass spectroscopy temperature‐programmed desorption, transmission electron microscopy, X‐ray absorption near edge spectroscopy and extended X‐ray absorption fine structure indicated that Lewis acidic divalent (+II of oxidation state) Co species mono‐atomically dispersed on the ion exchange site of MFI zeolite was the active species.

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