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Papers by Pascal Granger

Research paper thumbnail of Support-induced effect on the catalytic properties of Pd particles in water denitrification: Impact of surface and structural features of mesoporous ceria-zirconia support

Applied Catalysis B-environmental, May 1, 2018

Research paper thumbnail of Group VI transition metal carbides as alternatives in the hydrodechlorination of chlorofluorocarbons

Catalysis Today, Jun 1, 2000

Research paper thumbnail of Pt particles sintering on Pt/SiO2 during water denitrification

Catalysis Communications, 2021

Research paper thumbnail of Methane as Alternative in the Selective Reduction of NO over Supported Palladium Catalysts in Lean Conditions: Role of Redox Properties of Support Materials

Topics in Catalysis, Jul 1, 2004

Research paper thumbnail of Cover Picture: The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects. (ChemCatChem 12/2017)

Chemcatchem, Jun 22, 2017

Research paper thumbnail of Effects of alkaline earth metals on the surface, structure, and reactivity of α-alumina

Arabian Journal of Geosciences, May 1, 2018

Research paper thumbnail of Catalytic materials and heterogeneous catalysis

HAL (Le Centre pour la Communication Scientifique Directe), Feb 1, 2010

ABSTRACT Catalytic materials and heterogeneous catalysis Heterogeneous catalysis is behind most o... more ABSTRACT Catalytic materials and heterogeneous catalysis Heterogeneous catalysis is behind most of the principles of green chemistry: energy saving processes, atom efficiency, use of renewable feedstock, process intensification, cleaning processes. For that purposes, the design of new catalytic materials is in high demand: materials with mastered and hierarchically ordered porosity, materials allowing catalysis on single site and on stabilized nanosized oxide or metal particles.

Research paper thumbnail of Challenging aspects in DeNOx catalysis: From three-way to lean burned conditions

HAL (Le Centre pour la Communication Scientifique Directe), May 18, 2007

Présentation : P. Grange

Research paper thumbnail of Removal of Volatile Organic Compounds from Polluted Air by Absorption, Catalysis and Thermal Oxidation: Case Study of Toluene

HAL (Le Centre pour la Communication Scientifique Directe), 2006

ABSTRACT

Research paper thumbnail of Stabilité en phase aqueuse de catalyseurs à base de cuivre

Journal de chimie physique, 1995

La stabilite de catalyseurs Cu/SiO 2 a ete etudiee a 353 K en phase aqueuse et sous hydrogene.Des... more La stabilite de catalyseurs Cu/SiO 2 a ete etudiee a 353 K en phase aqueuse et sous hydrogene.Des phenomenes complexes sont mis en evidence: une oxydation partielle de la surface metallique, une dissolution partielle des formes oxydees du cuivre, une readsorption du cuivre passe en solution. L'ensemble de ces sequences permet de proposer un mecanisme du frittage du metal en solution aqueuse, via des especes ioniques solvatees.

Research paper thumbnail of Enhanced selectivity of 3-D ordered macroporous Pt/Al2O3 catalysts in nitrites removal from water

Applied Catalysis A-general, Aug 1, 2018

Research paper thumbnail of Impact of the Pd Incorporation Method on the Kinetics of the Ch4/O2 Reaction on Natural-Gas-Vehicle Model Pd-Doped Lamno3 Catalysts

Research paper thumbnail of Catalytic activity and thermal stability of LaFe1–xCuxO3 and La2CuO4 perovskite solids in three-way-catalysis

HAL (Le Centre pour la Communication Scientifique Directe), Oct 1, 2015

LaFe 1-x Cu x O 3 and La 2 CuO 4 catalysts are investigated for three-way-catalysis application. ... more LaFe 1-x Cu x O 3 and La 2 CuO 4 catalysts are investigated for three-way-catalysis application. LaFe 1-x Cu x O 3 solids present interesting catalytic properties mainly with respect to hydrocarbon and CO oxidation and NO reduction in rich conditions with high N 2 selectivity. The partial substitution of iron with copper leads to enhanced catalytic activity for oxidation reactions. This can be attributed to the higher reducibility of the solid as evidenced earlier by H 2-temperature-programmed reduction. The orthorhombic structure associated with LaFe 1-x Cu x O 3 solids (x up to 0.2) revealed good thermal stability during catalytic cycles in stoichiometric, lean and rich conditions whereas the Ruddlesden Popper phase associated with La 2 CuO 4 completely decomposed in rich conditions.

Research paper thumbnail of Development of stable and efficient CeVO4 systems for the selective reduction of NOx by ammonia: Structure-activity relationship

Applied Catalysis B-environmental, Dec 1, 2017

Bulk CeVO 4 catalysts prepared by hydrothermal synthesis have been developed for the ammoniaselec... more Bulk CeVO 4 catalysts prepared by hydrothermal synthesis have been developed for the ammoniaselective catalytic reduction of NO x to nitrogen. The catalytic properties were evaluated in standardand fast-SCR conditions for stationary and mobile applications. The coexistence of low concentration of Ce 4+ species stabilized as CeO 2 with bulk CeVO 4 was found to be crucial for enhancing the intermediate formation of NO 2 from NO oxidation. Such cooperative effects impact on the rate of NO conversion to nitrogen regardless of the operating conditions. Aging processes under wet atmosphere at 500 • C and 600 • C did not destabilize the bulk zircon-type structure of CeVO 4. No loss of vanadium was observed due to significant sublimation of vanadium. Despite poorer textural properties with regard to fresh CeVO 4 , aged CeVO 4 catalysts exhibit better catalytic properties in terms of rate of NO conversion and selectivity thus providing an alternative to less stable supported vanadia-based catalysts. Indeed, higher TOF values were measured in standard-SCR conditions at 200 • C on aged samples at 600 • C whereas an aging at 500 • C leads to selectivity enhancement at high temperature. All these changes can be rationalized based on the surface modifications of redox and acidic properties of vanadium species due to a slight extraction and stabilization of VO x species.

Research paper thumbnail of Changeable behavior of V2O5/WO3/TiO2 SCR catalyst compared to potassium poisoning: Impact of VOx dispersion

HAL (Le Centre pour la Communication Scientifique Directe), Sep 22, 2018

Research paper thumbnail of Comparaison de données spectroscopiques et cinétiques en catalyse hétérogène : Application aux mécanismes de transformation des oxydes d'azote

Université Libre de Bruxelles Présentation : P. Grange

Research paper thumbnail of Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA

Research paper thumbnail of Autothermal dry reforming of methane using nickel promoted illite clay catalyst

Research paper thumbnail of Opportunités offertes par l'emploi d'hydrogène ou d'urée en réduction catalytique des oxydes d'azote

HAL (Le Centre pour la Communication Scientifique Directe), Jul 8, 2005

Research paper thumbnail of Challenging aspects in the use of hydrogen in DeNOx catalysis : New potentialities of perovskite based catalysts

HAL (Le Centre pour la Communication Scientifique Directe), Jul 22, 2006

Research paper thumbnail of Support-induced effect on the catalytic properties of Pd particles in water denitrification: Impact of surface and structural features of mesoporous ceria-zirconia support

Applied Catalysis B-environmental, May 1, 2018

Research paper thumbnail of Group VI transition metal carbides as alternatives in the hydrodechlorination of chlorofluorocarbons

Catalysis Today, Jun 1, 2000

Research paper thumbnail of Pt particles sintering on Pt/SiO2 during water denitrification

Catalysis Communications, 2021

Research paper thumbnail of Methane as Alternative in the Selective Reduction of NO over Supported Palladium Catalysts in Lean Conditions: Role of Redox Properties of Support Materials

Topics in Catalysis, Jul 1, 2004

Research paper thumbnail of Cover Picture: The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects. (ChemCatChem 12/2017)

Chemcatchem, Jun 22, 2017

Research paper thumbnail of Effects of alkaline earth metals on the surface, structure, and reactivity of α-alumina

Arabian Journal of Geosciences, May 1, 2018

Research paper thumbnail of Catalytic materials and heterogeneous catalysis

HAL (Le Centre pour la Communication Scientifique Directe), Feb 1, 2010

ABSTRACT Catalytic materials and heterogeneous catalysis Heterogeneous catalysis is behind most o... more ABSTRACT Catalytic materials and heterogeneous catalysis Heterogeneous catalysis is behind most of the principles of green chemistry: energy saving processes, atom efficiency, use of renewable feedstock, process intensification, cleaning processes. For that purposes, the design of new catalytic materials is in high demand: materials with mastered and hierarchically ordered porosity, materials allowing catalysis on single site and on stabilized nanosized oxide or metal particles.

Research paper thumbnail of Challenging aspects in DeNOx catalysis: From three-way to lean burned conditions

HAL (Le Centre pour la Communication Scientifique Directe), May 18, 2007

Présentation : P. Grange

Research paper thumbnail of Removal of Volatile Organic Compounds from Polluted Air by Absorption, Catalysis and Thermal Oxidation: Case Study of Toluene

HAL (Le Centre pour la Communication Scientifique Directe), 2006

ABSTRACT

Research paper thumbnail of Stabilité en phase aqueuse de catalyseurs à base de cuivre

Journal de chimie physique, 1995

La stabilite de catalyseurs Cu/SiO 2 a ete etudiee a 353 K en phase aqueuse et sous hydrogene.Des... more La stabilite de catalyseurs Cu/SiO 2 a ete etudiee a 353 K en phase aqueuse et sous hydrogene.Des phenomenes complexes sont mis en evidence: une oxydation partielle de la surface metallique, une dissolution partielle des formes oxydees du cuivre, une readsorption du cuivre passe en solution. L'ensemble de ces sequences permet de proposer un mecanisme du frittage du metal en solution aqueuse, via des especes ioniques solvatees.

Research paper thumbnail of Enhanced selectivity of 3-D ordered macroporous Pt/Al2O3 catalysts in nitrites removal from water

Applied Catalysis A-general, Aug 1, 2018

Research paper thumbnail of Impact of the Pd Incorporation Method on the Kinetics of the Ch4/O2 Reaction on Natural-Gas-Vehicle Model Pd-Doped Lamno3 Catalysts

Research paper thumbnail of Catalytic activity and thermal stability of LaFe1–xCuxO3 and La2CuO4 perovskite solids in three-way-catalysis

HAL (Le Centre pour la Communication Scientifique Directe), Oct 1, 2015

LaFe 1-x Cu x O 3 and La 2 CuO 4 catalysts are investigated for three-way-catalysis application. ... more LaFe 1-x Cu x O 3 and La 2 CuO 4 catalysts are investigated for three-way-catalysis application. LaFe 1-x Cu x O 3 solids present interesting catalytic properties mainly with respect to hydrocarbon and CO oxidation and NO reduction in rich conditions with high N 2 selectivity. The partial substitution of iron with copper leads to enhanced catalytic activity for oxidation reactions. This can be attributed to the higher reducibility of the solid as evidenced earlier by H 2-temperature-programmed reduction. The orthorhombic structure associated with LaFe 1-x Cu x O 3 solids (x up to 0.2) revealed good thermal stability during catalytic cycles in stoichiometric, lean and rich conditions whereas the Ruddlesden Popper phase associated with La 2 CuO 4 completely decomposed in rich conditions.

Research paper thumbnail of Development of stable and efficient CeVO4 systems for the selective reduction of NOx by ammonia: Structure-activity relationship

Applied Catalysis B-environmental, Dec 1, 2017

Bulk CeVO 4 catalysts prepared by hydrothermal synthesis have been developed for the ammoniaselec... more Bulk CeVO 4 catalysts prepared by hydrothermal synthesis have been developed for the ammoniaselective catalytic reduction of NO x to nitrogen. The catalytic properties were evaluated in standardand fast-SCR conditions for stationary and mobile applications. The coexistence of low concentration of Ce 4+ species stabilized as CeO 2 with bulk CeVO 4 was found to be crucial for enhancing the intermediate formation of NO 2 from NO oxidation. Such cooperative effects impact on the rate of NO conversion to nitrogen regardless of the operating conditions. Aging processes under wet atmosphere at 500 • C and 600 • C did not destabilize the bulk zircon-type structure of CeVO 4. No loss of vanadium was observed due to significant sublimation of vanadium. Despite poorer textural properties with regard to fresh CeVO 4 , aged CeVO 4 catalysts exhibit better catalytic properties in terms of rate of NO conversion and selectivity thus providing an alternative to less stable supported vanadia-based catalysts. Indeed, higher TOF values were measured in standard-SCR conditions at 200 • C on aged samples at 600 • C whereas an aging at 500 • C leads to selectivity enhancement at high temperature. All these changes can be rationalized based on the surface modifications of redox and acidic properties of vanadium species due to a slight extraction and stabilization of VO x species.

Research paper thumbnail of Changeable behavior of V2O5/WO3/TiO2 SCR catalyst compared to potassium poisoning: Impact of VOx dispersion

HAL (Le Centre pour la Communication Scientifique Directe), Sep 22, 2018

Research paper thumbnail of Comparaison de données spectroscopiques et cinétiques en catalyse hétérogène : Application aux mécanismes de transformation des oxydes d'azote

Université Libre de Bruxelles Présentation : P. Grange

Research paper thumbnail of Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA

Research paper thumbnail of Autothermal dry reforming of methane using nickel promoted illite clay catalyst

Research paper thumbnail of Opportunités offertes par l'emploi d'hydrogène ou d'urée en réduction catalytique des oxydes d'azote

HAL (Le Centre pour la Communication Scientifique Directe), Jul 8, 2005

Research paper thumbnail of Challenging aspects in the use of hydrogen in DeNOx catalysis : New potentialities of perovskite based catalysts

HAL (Le Centre pour la Communication Scientifique Directe), Jul 22, 2006

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