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Добірка наукової літератури з теми "Matériaux catalytiques"
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Статті в журналах з теми "Matériaux catalytiques"
Makhlouf, M., R. Hamacha, F. Villièras, and A. Bengueddach. "L'évolution des propriétés catalytiques de silices mésoporeuses dopées au titane en fonction du greffage hydrophobe en surface des matériaux." Matériaux & Techniques 96, no. 4-5 (2008): 173–79. http://dx.doi.org/10.1051/mattech:2008044.
Повний текст джерелаBazin, P., O. Marie, and M. Daturi. "Étude par spectroscopie IR operando de matériaux catalytiques pour le traitement des pollutions d’habitacles de véhicules : mise en évidence des sites actifs, des espèces intermédiaires/spectatrices et des mécanismes réactionnels." Matériaux & Techniques 100, no. 3 (2012): 201–10. http://dx.doi.org/10.1051/mattech/2012012.
Повний текст джерелаLunot, C. "Matériaux pour la combustion catalytique." Journal de Physique IV (Proceedings) 12, no. 2 (April 2002): 25–29. http://dx.doi.org/10.1051/jp420020011.
Повний текст джерелаДисертації з теми "Matériaux catalytiques"
Bozo, Christine. "Matériaux catalytiques thermostables supports pour la combustion catalytique du méthane." Lyon 1, 2000. http://www.theses.fr/2000LYO10043.
Повний текст джерелаTaillades-Jacquin, Mélanie. "Nouveaux matériaux catalytiques pour l'amélioration du gazole." Montpellier 2, 2001. http://www.theses.fr/2001MON20106.
Повний текст джерелаCojocariu, Ana Mihaela. "Matériaux mésostructurés pour des applications dans les oxydations catalytiques : optimisation de la synthèse et des performances catalytiques." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20030.
Повний текст джерелаThe objective of this thesis was the optimization of the synthesis and catalytic performances of Ti-containing materials in the oxidation with H2O2 of a wide range of model organic compounds. The original part is represented by the synthesis of SiO2-TiO2 mixed oxides by a non hydrolytic sol-gel procedure and their use in different catalytic reactions like: sulfoxidation, epoxidation of olefins, oxidation of aromatic hydrocarbons and phenols. These materials were compared with ordered mesoporous materials (Ti-MCM-41 and Ti-MCM-48) and microporous titanosilicalite TS-1. The non-hydrolytic sol-gel process based on the etherolysis and condensation of chloride precursors offers a simple one-step route to mesoporous SiO2-TiO2 xerogels with a good dispersion of Ti species and outstanding textural properties, without resorting to supercritical drying procedures as in the case of the mixed oxides obtained by a hydrolytic way. Moreover, these materials exhibited a remarkable catalytic activity in the oxidation with H2O2 of all the organic compounds investigated (significant conversions, good selectivities and H2O2 efficiencies). The catalysts were stable under operating conditions
Rat-Valdambrini, Micha. "Stabilité thermique et propriétés catalytiques des matériaux mésostructurés hybrides." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26212/26212.pdf.
Повний текст джерелаDubé, David. "Matériaux mésostructurés organosiliciques fonctionnalisés acides synthèse, caractérisation et propriétés catalytiques." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26195/26195.pdf.
Повний текст джерелаScalabrino, Gabrielle. "Modifications catalytiques d’huiles végétales pour des applications en matériaux polymères." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10304.
Повний текст джерелаDuring this thesis, derivatives of vegetable oils are used to synthesize bio-resistant bio plasticizers for PVC and plasticizer / cross linker for an elastomer (EPDM). The oils possess ester functional groups which allow the solubilization of PVC and fatty chains compatible with EPDM. The reactions of epoxide ring-opening of fatty esters to di esters (symmetrical and asymmetrical) have been studied and applied mainly to the plasticization of PVC. The ring-opening of epoxides of fatty esters to ether-esters has also been studied, primarily for plasticization of EPDM. Optimization of the reaction conditions was carried: homogeneous (TBACl) and heterogeneous (TiO2) catalysts were efficient for the preparation of hydroxy-ester, and sulfonic resins in ether and the esterification of residual hydroxyls. A wide variety of reagents selected according to desired application were used. The derivative cyclohexanoate / acetate rapeseed methyl esters present the best plasticizing properties for PVC but it is unfortunately not bio-resistant. Ether-ester derivatives are not stable thermally and do not allow the plasticization of EPDM. A relatively non-polar di-unsaturated derivative (oleyl oleate) was synthesized for the plasticization and cross linking of EPDM. Several reactions are considered to link the oil and the polymer (hydrosilylation, ene- reaction and metathesis), but the reactivity is too low to allow the cross linking
Molina, Jotel Laura. "Amélioration, optimisation et développement des procédés d'élaboration de matériaux catalytiques." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0134.
Повний текст джерелаL’objectif de la thèse est de fabriquer des structures catalytiques washcoatées de taille centimétrique pour différentes réactions catalytiques comme le vaporeformage et le pré-reformage, le SNG (Substitute Natural Gas) et le MTP (Methanol to Propylene). L’étude de l’utilisation de ces structures alternatives aux catalyseurs extrudés conventionnels utilisés dans l’industrie est la conséquence des contraintes opératoires (gradients de pression et de température) et leur influence sur les coûts opératoires (endommagement des matériaux, désactivation des catalyseurs, perte de charge dans les réacteurs, etc.). Le dépôt des catalyseurs sur les architectures céramiques et métalliques a été possible grâce à l’étude minutieuse du comportement des solides catalytiques en suspension dans un milieu liquide. Le contrôle de paramètres comme la chimie de surface et la rhéologie a été nécessaire pour acquérir une maîtrise nécessaire afin d’obtenir des pièces catalytiques avec un dépôt homogène, stable mécaniquement et non fissuré
Germidis, Angelos. "Comportement thermomécanique de structures alvéolaires pour pots catalytiques." Paris, ENMP, 1996. http://pastel.paristech.org/3517/01/Germidis.pdf.
Повний текст джерелаHoneycomb structures for catalytic converters made of refractory Iron-Chromium-Aluminium alloy work at high temperature in oxidizing conditions. This thesis aims at understanding the damage mechanisms of parts in service, mainly due to oxidation or coupled oxidation and thermal fatigue of the structure. Material related aspects have been studied in 3 steps : Microstructural and kinetic study of ageing. Study of the mechanical behaviour at high temperature (800-1000°C) and low stresses of the metallic foil. Experimental and numerical simulation of the metal-oxide composite, with focus on reinforcement effects and isothermal/ anisothermal dimensional stability issues. This works basic data and knowledge to define an optimal preoxidation treatment optimising wash-coat adhesion, oxidation protection and dimensional stability. More fundamentally, we have studied growth deformations in oxide layers based on the analysis of specific experiments, the mechanical testing system developed at Centre des Matériaux and the FEM simulation Code Zebulon. Regarding the structure, we have focused on the metallic spiral monolith. The study of the local elastic properties of the honeycomb has shown the importance of the exact geometry of the brazed area on the mechanical behaviour of the whole. In addition, the extremes microstructures found in the monolith, in phase and out-of phase, displayed a very different behaviour in elastic properties and behaviour under thermal cycling, the former being the best. The repartition law between those 2 phases as a function of the L/e ratio between wave length and amplitude of the corrugated foil has been determined. Observations on damaged parts have confirmed the role of this distribution
Karaki, Mariam. "Matériaux à porosité contrôlée sulfonés : Synthèse, Caractérisation, Etude des propriétés catalytiques." Phd thesis, Université de Haute Alsace - Mulhouse, 2013. http://tel.archives-ouvertes.fr/tel-01064374.
Повний текст джерелаDonzel, Nicolas. "Nouveaux matériaux mésoporeux catalytiques et leur application pour l'amélioration du gazole." Montpellier 2, 2006. http://www.theses.fr/2006MON20237.
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