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Investigation of the molybdenum state in the Mo(4%)/HZSM-5 catalyst for methane aromatization |
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| Authors: | E. V. Fadeeva O. P. Tkachenko A. V. Kucherov A. P. Barkova M. N. Mikhailov A. M. Kuli-zade M. M. Akhmedov L. M. Kustova |
| Affiliation: | 1. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russian Federation 2. M. F. Nagiev Institute of Chemical Problems, National Academy of Sciences of Azerbaijan, 29 prosp. G. Dzhavida, AZ1143, Baku, Azerbaijan 3. Chemistry Department, M. V. Lomonosov Moscow State University, Building 3, 1 Leninskie Gory, 119991, Moscow, Russian Federation |
| Abstract: | The Mo(4%)/HZSM-5 catalyst for methane aromatization prepared by the impregnation of ammonium heptamolybdate followed by calcination at 700°C was studied. The formation of molybdenum ions in the oxidation state 5+ during catalysis and the presence of graphitized carbonaceous sediments on the surface of the catalyst were confirmed by diffuse reflectance infrared Fourier transform spectroscopy (DRIFT), X-ray photoelectron spectroscopy (XPS), and ESR spectroscopy. |
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