Influence of Mechanical Activation Conditions upon the Physicochemical Properties of Manganese-Substituted Cordierite Ceramics
E. F. SUTORMINA,В В L. A. ISUPOVA,В В A. A. MARCHUK,В В A. V. KUZNETSOVA andВ В 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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