Direct Oxidation of Benzene to Phenol by N<sub>2</sub>O over Fe-ZSM-5 Zeolites Obtained via Ammonia-Steaming Treatment
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چکیده
منابع مشابه
Stable Fe/ZSM-5 Nanosheet Zeolite Catalysts for the Oxidation of Benzene to Phenol
Fe/ZSM-5 nanosheet zeolites of varying thickness were synthesized with di- and tetraquaternary ammonium structure directing agents and extensively characterized for their textural, structural, and catalytic properties. Introduction of Fe3+ ions in the framework of nanosheet zeolites was slightly less effective than in bulk ZSM-5 zeolite. Steaming was necessary to activate all catalysts for N2O ...
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Vanadium supported on highly ordered nanoporous silica (VOx-LUS-1) was synthesized and characterized by XRD, Nitrogen adsorption‑desorption isotherms and UV-visible spectrophotometer. Direct oxidation of benzene to phenol in liquid phase by H2O2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). The maximum yield (25%) and selectivity (73%) of the ph...
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In the presence of nitrous oxide, Fe-ZSM-5 is known to catalyze the partial oxidation of benzene to phenol with high selectivity. The active site for this reaction is thought to be a surface iron–oxo species generated upon dissociation of nitrous oxide and release of nitrogen. In this study, density functional theory calculations were used to explore possible pathways for benzene oxidation at a...
متن کاملA hierarchical Fe/ZSM-5 zeolite with superior catalytic performance for benzene hydroxylation to phenol.
We report the one-step synthesis of a highly active hierarchical Fe/ZSM-5 zeolite catalyst with a strongly improved lifetime in the selective hydroxylation of benzene to phenol with nitrous oxide; compared to the best Fe/ZSM-5 catalyst, the turnover number after 24 h on stream is almost four times higher.
متن کاملdirect oxidation of benzene to phenol in liquid phase by h2o2 over vanadium catalyst supported on highly ordered nanoporous silica
vanadium supported on highly ordered nanoporous silica (vox-lus-1) was synthesized and characterized by xrd, nitrogen adsorption‑desorption isotherms and uv-visible spectrophotometer. direct oxidation of benzene to phenol in liquid phase by h2o2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). the maximum yield (25%) and selectivity (73%) of the ph...
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ژورنال
عنوان ژورنال: Journal of Advances in Physical Chemistry
سال: 2015
ISSN: 2168-6122,2168-6130
DOI: 10.12677/japc.2015.42006