A general model for both three-way and deNOx catalysis: dissociative or associative nitric oxide adsorption, and its assisted decomposition in the presence of a reductant

Autor: Gilbert Blanchard, Gérald Djéga-Mariadassou, Franck Fajardie, Jean-François Tempère, J.-M. Manoli, Olivier Touret

Publikováno v: Journal of Molecular Catalysis A: Chemical. 161:179-189

A selective overview of recent studies on both three-way and deNO x catalysis (we shall note ‘deNO x ’, the removal of NO in the presence of an excess of oxygen) leads to an unique and general model of these reactions, based on kinetic concepts.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::771c677fbb25442ec5d78f6d62fdc7bb
https://doi.org/10.1016/s1381-1169(00)00334-4

Activity of Rhx+Species in CO Oxidation and NO Reduction in a CO/NO/O2Stoichiometric Mixture over a Rh/CeO2-ZrO2Catalyst

Autor: Franck Fajardie, Olivier Touret, Jean-Marie Manoli, Jean-François Tempere, G. Blanchard, Gérald Djéga-Mariadassou

Publikováno v: Journal of Catalysis. 179:469-476

The catalytic activity of a 0.30 wt% Rh/CeO{sub 2}-ZrO{sub 2} catalyst (25% ZrO{sub 2} in weight) 188 m{sup 2}/g was studied in the oxidation of CO and reduction of NO in a CO/NO/O{sub 2} stoichiometric mixture, in the temperature range of 298--773 K

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc9ce232abee35de9feda825925388e7
https://doi.org/10.1006/jcat.1998.2222

Influence of platinum on ceria sulfation

Autor: Jean-Claude Lavalley, V. Visciglio, P. Bazin, Odette Saur, Olivier Touret, Gilbert Blanchard

Publikováno v: Applied Catalysis B: Environmental. 13:265-274

The influence of platinum on ceria sulfation has been studied using thermogravimetry and infrared spectroscopy. The same types of sulfate species — surface and bulk-like species — are evidenced with or without Pt. Pt does not modify the thermal s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9cda5bf057e6fc11794fac3fa06b25ea
https://doi.org/10.1016/s0926-3373(97)00004-0

Thermal stability of a high surface area ceria under reducing atmosphere

Autor: G. Blanchard, Ahmidou Laachir, Olivier Touret, Vincent Perrichon, S. Abouarnadasse

Publikováno v: Applied Catalysis A: General. 129:69-82

The influence of a reducing atmosphere on the thermal stability of CeO2 was studied on a high surface area ceria sample (115 m2 g−1) treated 2 h under hydrogen or carbon monoxide at various temperatures between 673 and 1123 K. Comparative experimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e946c25a586c5e45af7f3c7dfb5ffce1
https://doi.org/10.1016/0926-860x(95)00089-5

Reduction of cerias with different textures by hydrogen and their reoxidation by oxygen

Autor: Vincent Perrichon, Gérard Bergeret, Olivier Touret, L. Tournayan, Ahmidou Laachir, Roger Fréty

Publikováno v: Journal of the Chemical Society, Faraday Transactions
Journal of the Chemical Society, Faraday Transactions, Royal Society of Chemistry, 1994, 90, pp.773-781

Successive reduction steps of CeO2 particles by hydrogen between 300 and 1070 K have been followed by temperature-programmed reduction (TPR) and in situ magnetic measurements on several samples with different BET surface areas. The nature of the phas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1e519d806fc784487fa8149645c35c3
https://doi.org/10.1039/ft9949000773