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Specifics of phase transformations in Li/W/Mn/SiO2 composites at influence of methane-oxygen and hydrogen-air mixtures |
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| Authors: | G. D. Nipan A. S. Loktev K. V. Parkhomenko S. D. Golikov M. V. Gerashchenko A. G. Dedov I. I. Moiseev |
| Affiliation: | 1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia 2. Gubkin Russian State University of Oil and Gas, Leninskii pr. 65, Moscow, 119991, Russia 3. Université de Strasbourg, rue de Blaise Pascal 4, Strasbourg, CEDEX F-67081, France |
| Abstract: | Li/W/Mn/SiO2 composites were studied immediately after sol-gel or solid-phase synthesis and the high-temperature exposure to methane-oxygen and hydrogen-air mixtures. The phase compositions of these catalysts, which determines their catalytic activities in the oxidative coupling of methane, were shown to depend on the method of synthesis, the ratio of cations, and the composition of the submitted gas mixture. |
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