Premium
Direct Methylation of Benzene with Methane Catalyzed by Co/MFI Zeolite
Author(s) -
Nakamura Koshiro,
Okuda Akihito,
Ohta Kiyotaka,
Matsubara Hitoshi,
Okumura Kazu,
Yamamoto Kana,
Itagaki Ryosuke,
Suganuma Satoshi,
Tsuji Etsushi,
Katada Naonobu
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201800724
Subject(s) - zeolite , benzene , catalysis , methane , chemistry , heterogeneous catalysis , inorganic chemistry , organic chemistry
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.