Influence of Mechanical Activation Conditions upon the Physicochemical Properties of Manganese-Substituted Cordierite Ceramics
E. F. SUTORMINA, L. A. ISUPOVA, A. A. MARCHUK, A. V. KUZNETSOVA and V. A. ROGOV
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
E-mail: selena@catalysis.ru
Keywords: substituted cordierite, mechanical activation, ammonia oxidation
Pages: 615–620
Abstract
An effect of different mechanical activation conditions (different activator types) on the phase composition, texture characteristics of catalysts based on manganese-substituted cordierite ceramics, as well as the activity thereof in the reaction of ammonia oxidation was studied. It is demonstrated that it is preferable to use an energy-intensive planetary ball mill with a high power density, since it provides the preparation of smaller particles. The finely crystallized manganese cordierite with a minor impurities content, low specific surface, low pore volume and a high activity in the reaction of ammonia oxidation is obtained at their subsequent sintering.
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