Catalysts Based on Cordierite Modified with Transition Metal Oxides Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2014, Volume: 55, Number: 5, Pages: 656-664 Pages count : 9 DOI: 10.1134/S0023158414050176 | ||
| Tags | Cordierite; Manganese Oxide; Nitrogen Oxide; Transition Metal Oxide; Ammonia Oxidation | ||
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Abstract:
Catalysts active in ammonia oxidation have been obtained by the substitution of transition metal (Mn, Fe, Co, Ni, and Cu) ions for Mg ions in the cordierite structure 2MgO · 2Al2O3 · 5SiO2 at 1100°C. Their phase composition, texture, and activity depend on the type and amount of introduced transition metal oxide. The Mn- and Cu-containing catalysts, which consist of substituted cordierites 2(Mg1 − x M x )O · 2Al2O3 · 5SiO2 and Mn2O3 or CuO crystallites located on their surface, are most active in ammonia oxidation. The catalysts are characterized by a small specific surface area and have large pores, whose total volume is small. The Fe-containing catalysts consist of the Fe-substituted cordierite phase and particles of an iron oxide phase. These particles are mostly located in internal pores of the catalysts and are, therefore, hardly accessible to ammonia molecules. The introduction of Co or Ni oxide leads to the formation of a low-active spinel phase rather than the cordierite phase.
Cite:
Sutormina E.F.
, Isupova L.A.
, Kulikovskaya N.A.
, Kuznetsova A.V.
, Rudina N.A.
Catalysts Based on Cordierite Modified with Transition Metal Oxides
Kinetics and Catalysis. 2014. V.55. N5. P.656-664. DOI: 10.1134/S0023158414050176 WOS Scopus РИНЦ AN OpenAlex
Catalysts Based on Cordierite Modified with Transition Metal Oxides
Kinetics and Catalysis. 2014. V.55. N5. P.656-664. DOI: 10.1134/S0023158414050176 WOS Scopus РИНЦ AN OpenAlex
Original:
Сутормина Е.Ф.
, Исупова Л.А.
, Куликовская Н.А.
, Кузнецова А.В.
, Рудина Н.А.
Катализаторы на основе кордиерита, модифицированного оксидами переходных металлов
Кинетика и катализ. 2014. Т.55. №5. С.688-696. DOI: 10.7868/S0453881114050177 РИНЦ OpenAlex
Катализаторы на основе кордиерита, модифицированного оксидами переходных металлов
Кинетика и катализ. 2014. Т.55. №5. С.688-696. DOI: 10.7868/S0453881114050177 РИНЦ OpenAlex
Dates:
| Submitted: | Feb 6, 2014 |
| Published print: | Sep 1, 2014 |
| Published online: | Sep 21, 2014 |
Identifiers:
| Web of science: | WOS:000342423300015 |
| Scopus: | 2-s2.0-84921640346 |
| Elibrary: | 24030310 |
| Chemical Abstracts: | 2014:1579789 |
| OpenAlex: | W1992572422 |