Fuel Combustion Reactions and Catalysts: XXI. Synthesis and Characterization of Modified Mn-Al-O Catalysts for High-Temperature Oxidation Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2003, Volume: 44, Number: 6, Pages: 806-812 Pages count : 7 DOI: 10.1023/B:KICA.0000009058.43038.94 | ||
| Tags | Combustion; Manganese; Solid Solution; Calcination; Calcination Temperature | ||
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Abstract:
The phase composition of supported Mn–Al–O catalysts and their activity in the reaction of methane oxidation were studied depending on the composition of aluminum oxide supports (γ-Al2O3 with different χ-Al2O3 contents modified with individual Mg, La, and Ce oxides or Mg + La and Mg + Ce oxide mixtures) and calcination temperatures (500, 900, and 1300°C). It was found that the Mn–Al–O catalysts based on γ-alumina containing χ-Al2O3 and modified with Mg, La, or Ce additives are more active and thermally stable (up to 1300°C) than the samples based on pure γ-Al2O3. A conclusion was drawn that a higher degree of disorder of the structure of χ-Al2O3, compared to that of γ-Al2O3, is favorable for a deeper interaction of manganese and modifying additives with the support at the early stages of the synthesis and for the formation of Mn–Al compounds with complex composition (solid solutions and/or hexaaluminates) at 1300°C. These compounds are responsible for the stability and high activity of the catalysts in methane oxidation.
Cite:
Tsykoza L.T.
, Ismagilov Z.R.
, Ushakov V.A.
, Kuznetsov V.V.
, Ovsyannikova I.A.
Fuel Combustion Reactions and Catalysts: XXI. Synthesis and Characterization of Modified Mn-Al-O Catalysts for High-Temperature Oxidation
Kinetics and Catalysis. 2003. V.44. N6. P.806-812. DOI: 10.1023/B:KICA.0000009058.43038.94 WOS Scopus РИНЦ ANCAN OpenAlex
Fuel Combustion Reactions and Catalysts: XXI. Synthesis and Characterization of Modified Mn-Al-O Catalysts for High-Temperature Oxidation
Kinetics and Catalysis. 2003. V.44. N6. P.806-812. DOI: 10.1023/B:KICA.0000009058.43038.94 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Цикоза Л.Т.
, Исмагилов З.Р.
, Ушаков В.А.
, Кузнецов В.В.
, Овсянникова И.А.
Исследование реакций и катализаторов сжигания топлив. XXI. Синтез и исследование модифицированных Mn-Al-O-катализаторов для высокотемпературного окисления
Кинетика и катализ. 2003. Т.44. №6. С.879-885. РИНЦ
Исследование реакций и катализаторов сжигания топлив. XXI. Синтез и исследование модифицированных Mn-Al-O-катализаторов для высокотемпературного окисления
Кинетика и катализ. 2003. Т.44. №6. С.879-885. РИНЦ
Dates:
| Submitted: | Oct 18, 2002 |
| Published print: | Nov 1, 2003 |
Identifiers:
| Web of science: | WOS:000187806200013 |
| Scopus: | 2-s2.0-0347091737 |
| Elibrary: | 13426077 |
| Chemical Abstracts: | 2003:984628 |
| Chemical Abstracts (print): | 140:148747 |
| OpenAlex: | W2074681603 |