Ni/Pillared Clays as Catalysts for the Selective Catalytic Reduction of Nitrogen Oxides by Propene

Different and alternative methods for the preparation of Ni/pillared clays based on impregnation and encapsulation procedures are reported. Several nickel precursors and metal loadings are considered in order to evaluate their influence on the structural, textural and catalytic properties of the res...

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Bibliographic Details
Published in:Catalysis letters 2008-06, Vol.123 (1-2), p.32-40
Main Authors: Belver, C., Mata, G., Trujillano, R., Vicente, M. A.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Clay
Exact sciences and technology
General and physical chemistry
Industrial Chemistry/Chemical Engineering
Nickel
Nitrogen oxides
Organometallic Chemistry
Physical Chemistry
Precursors
Selective catalytic reduction
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Different and alternative methods for the preparation of Ni/pillared clays based on impregnation and encapsulation procedures are reported. Several nickel precursors and metal loadings are considered in order to evaluate their influence on the structural, textural and catalytic properties of the resulting solids. The behaviour of the optimum solids as catalysts has been proved in the selective catalytic reduction of nitrogen oxides with propene, and the relevance of the oxidant nature was checked by changing the composition of the oxidant mixture. Of all the factors studied, the nature of the nickel precursors appears as the most important one, owing to the formation of different active nickel species during the synthesis procedure.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-008-9396-6