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Article Dans Une Revue Reaction kinetics, mechanisms and catalysis Année : 2013

Characterization and deNO x activity of copper-hydroxyapatite catalysts prepared by wet impregnation

Résumé

Copper loaded hydroxyapatite catalysts have been prepared by wet impregnation and have been tested in the selective catalytic reduction of NO by NH3. The catalyst characterization showed the presence of copper oxide nanoparticles entrapped in the mesoporous matrix thus obstructing the Ca-Hap channel apertures. With increasing copper loading, there is a deposition of copper oxide clusters, on the surface of the carrier, containing Cu2+ and Cu+ ions. Compared to the catalyst prepared by the ion exchange method, Cu(1.12)Hapi.e, which exhibited excellent NO conversion over a broad temperature range, the impregnated catalysts are less efficient in the selective catalytic reduction of NO by NH3.

Domaines

Catalyse

Dates et versions

hal-00823474 , version 1 (17-05-2013)

Identifiants

Citer

Jihène Jemal, Hassib Tounsi, Samir Djemel, Carolina Petitto, Gerard Delahay. Characterization and deNO x activity of copper-hydroxyapatite catalysts prepared by wet impregnation. Reaction kinetics, mechanisms and catalysis, 2013, 109 (1), pp.159 - 165. ⟨10.1007/s11144-013-0544-7⟩. ⟨hal-00823474⟩
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