Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Hélène Praliaud"'
Publikováno v:
Applied Catalysis A: General. 263:39-48
The selective catalytic reduction (SCR) of nitric oxide by propene under lean-burn conditions over Ir/Al 2 O 3 and Ir/SiO 2 was studied. Irrespective of the support, Ir supported catalysts were found to be active in the reduction of NO above 673 K, I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::013ea2e14d50acded2bb90fdb4d3fe57
https://doi.org/10.1016/j.apcata.2003.11.038
https://doi.org/10.1016/j.apcata.2003.11.038
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 72:1117-1126
The interactions of CO with a high specific surface area tin dioxide was investigated by FTIR spectroscopy and thermogravimetric analysis. FTIR study of CO interactions have shown that CO can adsorb on cus (coordinatively unsaturated sites) Sn4+ cati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d0d97966539e6732d6b6b754b68f0a
https://doi.org/10.1023/a:1025084129973
https://doi.org/10.1023/a:1025084129973
Autor:
Hélène Praliaud, Ginette Leclercq, J.J. Lecomte, C. Dathy, Pascal Granger, Laurent Delannoy, Lucien Leclercq
Publikováno v:
Journal of Catalysis. 207:202-212
The influence of ceria on the kinetic behavior of noble metals in the reduction of NO by CO has been investigated at 120 and 300°C on a freshly prepared Pt–Rh/Al2O3–CeO2 catalyst, and on an aged catalyst after reaction for 16 h at 500°C, within
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26e137f5c8afa5fdd038e250375bddc0
https://doi.org/10.1006/jcat.2002.3519
https://doi.org/10.1006/jcat.2002.3519
Publikováno v:
Surface and Interface Analysis. 34:92-96
The adsorption of NO and its reaction with CO have been investigated on Pt/Al2O3 and Rh/Al2O3 by in situ infrared spectroscopy. Different spectroscopic features have been observed on Rh and Pt after NO exposure at various temperatures, mainly related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5c2ab0be7ae55a18b0367f047a39e77
https://doi.org/10.1002/sia.1260
https://doi.org/10.1002/sia.1260
Publikováno v:
Applied Catalysis A: General. 220:129-139
The selective catalytic reduction (SCR) of nitric oxide by propene over Ir/Al 2 O 3 under lean-burn conditions (1000 vpm NO, 2000 vpm C 3 H 6 , 500 vpm CO, 10 vol.% O 2 ) was studied. The activity was shown to be strongly enhanced after exposure of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::002370a47e855c911fe92768c50ef401
https://doi.org/10.1016/s0926-860x(01)00723-2
https://doi.org/10.1016/s0926-860x(01)00723-2
Publikováno v:
Journal of Catalysis. 202:367-378
The surface composition of alumina-supported Pd, Rh, and Pd–Rh catalysts fresh or after high temperature treatments under oxidizing (O2 in N2) or reducing (H2 in N2) mixture has been characterized using various complementary techniques: chemisorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13aea5988804997eb57ea1b2c4a3dc35
https://doi.org/10.1006/jcat.2001.3268
https://doi.org/10.1006/jcat.2001.3268
Publikováno v:
Topics in Catalysis. :199-204
For SCR of NO the study of Ir/Al2O3 solids shows the importance of the activation procedure under mixtures containing CO (NO–C3H6–CO–O2 or NO–CO–O2). The selective reductant remains C3H6, however. The activation goes with an iridium particl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1bf39fc459d46a8b8d2d6856a06e17b
https://doi.org/10.1023/a:1016619906586
https://doi.org/10.1023/a:1016619906586
Publikováno v:
Topics in Catalysis. :237-241
Mechanical mixtures consisting of a catalyst (Pt/SiO2 or Pt/SiO2–Al2O3) and supports of varying acidity (hydrotalcite, SiO2, SiO2–Al2O3, and ZSM-5 zeolite) were tested for the selective reduction of NO by C3H6. A certain degree of support acidity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da0f4a75ed3e37ef79bfd2a627b018a
https://doi.org/10.1023/a:1016632309312
https://doi.org/10.1023/a:1016632309312
Publikováno v:
Topics in Catalysis. :377-380
During the selective reduction of NOx under lean-burn conditions with Pt/SiO2 solids, a particle size dependency has previously been observed. Furthermore, under the reactant mixture up to 773 K, the Pt particles sinter at the same time as the solids
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1a64adc2ed0e4210562d763f71505d4
https://doi.org/10.1023/a:1016625519307
https://doi.org/10.1023/a:1016625519307
Autor:
Patricia Denton, Anne Giroir-Fendler, Hélène Praliaud, Michel Primet, Yves Schuurman, Claude Mirodatos
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 3:437-441
Platinum-based catalysts can be used for the selective reduction of NOx in lean burn conditions, but they form undesirably high quantities of N2O. In this study conducted under stationary and transient conditions, we attempted to better understand th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5bda277f33f3e50a5654f3172e536db
https://doi.org/10.1016/s1387-1609(00)00149-3
https://doi.org/10.1016/s1387-1609(00)00149-3