Rh–Sr/Al2O3 Catalyst for N2O Decomposition in the Presence of O2

The improving effect of Sr in the catalytic activity of Rh for N 2 O decomposition has been studied under 1,000 ppm N 2 O/He and 1,000 ppm N 2 O/5% O 2 /He (GHSV = 10,000 h −1 ). Different techniques have been used for catalysts characterization: TEM, SEM-EDX, XRD, N 2 adsorption at −196 °C and in s...

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Bibliographic Details
Published inTopics in catalysis Vol. 52; no. 13-20; pp. 1832 - 1836
Main Authors Parres-Esclapez, S., López-Suárez, F. E., Bueno-López, A., Illán-Gómez, M. J., Ura, B., Trawczynski, J.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.12.2009
Subjects
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
Noble metal
O decomposition
Rhodium catalyst
Greenhouse gas
N
Alkali–earth metal
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Summary:The improving effect of Sr in the catalytic activity of Rh for N 2 O decomposition has been studied under 1,000 ppm N 2 O/He and 1,000 ppm N 2 O/5% O 2 /He (GHSV = 10,000 h −1 ). Different techniques have been used for catalysts characterization: TEM, SEM-EDX, XRD, N 2 adsorption at −196 °C and in situ XPS. Sr favours the Rh dispersion and reduction under reaction conditions, and allows the low temperature removal of N 2 O in the presence of O 2 (100% decomposition at 350 °C).
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-009-9353-7