Catalytic conversion of N2O over palladium catalysts based on dealuminated faujasite

Author:

Najar Hanene1,Zina Mongia Saïd1,Delahay Gerard2,Ghorbel Abdelhamid1

Affiliation:

1. Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, Campus Universitair, Tunisia

2. Institut Charles Gerhardt Montpellier, Matériaux Avancés pour la Catalyse et la Santé», ENSCM, Montpellier, France

Abstract

Dealumination of the faujasite support was realised using a hydrothermal treatment at different temperatures (625 – 700°C). Then palladium catalysts were prepared by an ion exchange method. The prepared catalysts exhibited a high and constant activity up to 100% for N2O conversion. This performance was dependent on certain parameters, such as a high Si/Al ratio, the structural properties of the zeolitic support, and the metal function provided by the palladium. In addition, it is considered that the active sites in the reaction, which are suspected to be PdO, are influenced by the acidic properties of the support.

Publisher

SAGE Publications

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