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378 results on '"Barrault, J."'

125. LaFeO3 Perovskite as New and Performant Catalyst for the Wet Peroxide Oxidation of Organic Pollutants in Ambient Conditions.

Author

Faye, J., Guélou, E., Barrault, J., Tatibouët, J. M., and Valange, S.

Subjects
PEROVSKITE, CATALYSTS, OXIDATION, CHEMICAL inhibitors, NANOPARTICLES
Abstract

The purpose of the present study was to evaluate the ability of LaFeO3 perovskites prepared using the “self-combustion method” to behave as efficient and stable catalysts in phenol oxidation using H2O2 in ambient conditions. Depending on the synthesis conditions, strong differences in the structural, textural and reducibility characteristics of the perovskites, as well as in phenol conversion and TOC abatement level were observed. High TOC abatement (76%) and very low iron leaching (0.27 wt%) were obtained at 40 °C in the presence of LaFeO3 nanoparticles exhibiting the lowest crystal domain size. [ABSTRACT FROM AUTHOR]

Published
2009
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133. Glycerol Derivatives of Cutin and Suberin Monomers:  Synthesis and Self-Assembly

Author

Douliez, J.-P., Barrault, J., Jerome, F., Heredia, A., Navailles, L., and Nallet, F.

Abstract

Glycerol derivatives of cutin and suberin monomers were synthesized by acid catalysis. Their dispersion in an aqueous solution was examined by phase contrast microscopy, neutron scattering, and solid state NMR. It is shown that the phase behavior strongly depends on the nature of the derivatives forming either lumps of aggregated membranes or well dispersed membranes.

Published
2005

139. Hydrocondensation of CO2(CO) over supported iron catalysts

Author

Barrault, J., Forquy, C., Menezo, J., and Maurel, R.

Abstract

Hydrogenation of CO2was investigated on iron-copper supported catalysts. Hydrocarbons, except methane, were formed through the CO intermediate, which is formed first in the water gas-shift reaction. Гидрирование CO2было исследовано на железно-медных катализаторах на носителях. Вначале в реакции водяного газа образуется CO, которая является промежуточным продуктом, приводящим к углеводородам, за исключением метана.

Published
1981
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143. Point des travaux de l'IRAT sur les sorghos repiqués au Nord-Cameroun

Author

Barrault, J., Eckebil, J.P., and Vaille, J.

Subjects
Labour, Type de sol, rendement, Fertilisation, Engrais NPK, F01 - Culture des plantes, Méthode d'essai, Variété, Eau du sol, Sorghum, calendrier cultural, Vertisol, Sorghum bicolor, Repiquage, Amélioration des plantes, Pratique culturale, Système poral du sol
Published
1972

146. De la culture du muskwari

Author

Barrault, J., Coré, J.Y., Germain, P., Guis, Rolland, and Tardieu, M.

Subjects
Labour, Fumure starter, Travail du sol, Stockage, Densité de semis, Maladie des plantes, F01 - Culture des plantes, Méthode d'essai, Variété, Irrigation, Semence, Sorghum, Amélioration des plantes, Pépinière
Published
1972

147. Note sur la riziculture dans le Nord-Cameroun

Author

Barrault, J.

Subjects
Expérimentation, Oryza sativa, rendement, Accroissement de production, Amélioration des plantes, Projet de recherche, F01 - Culture des plantes, production
Published
1966

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