On the Use of Silicon Nitride in Catalysis

Silicon nitride has very good thermal and chemical stability, as well as high thermal conductivity compared to oxide materials, which are commonly used as catalyst supports. In exothermic reactions working at high temperature, this facilitates heat transfer and thus limits the formation of local hot...

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Bibliographic Details
Published in:Topics in catalysis 2009-10, Vol.52 (11), p.1492-1505
Main Authors: Cadete Santos Aires, F. J., Bertolini, J. C.
Format: Article
Language:English
Subjects:
Catalysis
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
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Summary:Silicon nitride has very good thermal and chemical stability, as well as high thermal conductivity compared to oxide materials, which are commonly used as catalyst supports. In exothermic reactions working at high temperature, this facilitates heat transfer and thus limits the formation of local hot spots, which are often responsible for structural modification of the support in addition to sintering of active phases. However, it is only recently that this material has been considered for application as a catalyst support for high temperature reactions. It is now established that silicon nitride can be a good support for catalytically active phases. Its range of application is continually expanding (e.g., partial/total oxidation of methane, hydrogenation and dehydrogenation reactions, photocatalysis, base catalysis, etc.).
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-009-9296-z