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

ABSTRACT: 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.

SUBMITTER: Nakamura K

PROVIDER: S-EPMC6282706 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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

Nakamura Koshiro K Okuda Akihito A Ohta Kiyotaka K Matsubara Hitoshi H Okumura Kazu K Yamamoto Kana K Itagaki Ryosuke R Suganuma Satoshi S Tsuji Etsushi E Katada Naonobu N

ChemCatChem 20180711 17

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 ...[more]

PMID: 30546494

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