Academic literature on the topic 'Encre catalytique'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Encre catalytique.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Encre catalytique":
Lagoutte, Priscillia. "La présentation sur ribosome." médecine/sciences 36, no. 8-9 (August 2020): 717–24. http://dx.doi.org/10.1051/medsci/2020126.
Guigo, Pierre-Emmanuel. "La convergence impossible ?" 20 & 21. Revue d'histoire N° 159, no. 3 (April 16, 2024): 29–44. http://dx.doi.org/10.3917/vin.159.0029.
Gallard, H., J. De Laat, and B. Legube. "Étude comparative de la vitesse de décomposition de H2O2 et de l'atrazine par les systèmes Fe(III)/H2O2, Cu(II)/H2O2 et Fe(III)/Cu(II)/H2O2." Revue des sciences de l'eau 12, no. 4 (April 12, 2005): 713–28. http://dx.doi.org/10.7202/705374ar.
ARCHAMBAULT de VENCAY, Jacques. "Methionyl-tRNA synthetase du germe de ble. Effet d'une protease endogene et correlations entre caracteristiques structurales et proprietes catalytiques." European Journal of Biochemistry 182, no. 1 (June 1989): 37–43. http://dx.doi.org/10.1111/j.1432-1033.1989.tb14797.x.
Monnier, Par E., J. M. Botella, A. Murillo, A. Klaébé, and J. Périé. "Hydrolyse basique comparee d'esters allophaniques et phosphoriques en milieu mixte acetonitrile/eau faiblement aqueux; mise en evidence d'une entite catalytique, intermediaire de la reaction entre base et solvant." Tetrahedron 42, no. 5 (January 1986): 1315–31. http://dx.doi.org/10.1016/s0040-4020(01)87351-8.
Bousquet-Mélou, Mireille. "Families of prudent self-avoiding walks." Discrete Mathematics & Theoretical Computer Science DMTCS Proceedings vol. AJ,..., Proceedings (January 1, 2008). http://dx.doi.org/10.46298/dmtcs.3627.
Dissertations / Theses on the topic "Encre catalytique":
Belatel, Hafsia. "Contribution à l'étude des propriétés catalytiques des oxydes de molybdène et de tungstène : Corrélation entre structure de surface et activité catalytique." Université Louis Pasteur (Strasbourg) (1971-2008), 2005. https://publication-theses.unistra.fr/public/theses_doctorat/2005/BELATEL_Hafsia_2005.pdf.
Extensive research work and several investigations are still carried out on MoO3 and WO3 as catalysts for hydrodesulfurisation processes of crude oil, selective oxidation of unsaturated compounds and oxidation of hydrocarbons and alcohols. However, these oxide catalysts are replaced by more active and selective Pt based catalysts for hydroisomerization of alkane. Several problems are encountered using these platinum catalysts; it is an expensive metal, rare and sensitive to sulfur. Nevertheless, the presence of a bifunctional behavior for molybenum or tungsten has revived the interest in the catalytic properties of these Mo and W oxides. This dual function is present in carbide, oxicarbide or partially reduced oxide, in a similar manner to the bifunctional Pt deposited on acid alumina ( industrially used for the isomerization of light naphta). In order to get a clear idea about the relationship between the catalytic activity and the electronic structure of the active phase in these systems, we have conducted a systematic research work using the most appropriate characterization techniques such as XPS-UPS, XRD, SEM and BET. Catalytic experiments were performed using bulk MO2, MO3 and MO3/TiO2 (M= Mo, W) for isomerization of n-heptane; isomerization, dehydrogenation and ring opening of cyclic compounds such as methylcyclohexane (MCH) at different experimental conditions. The catalytic behaviors of these Mo and W oxides were compared with those obtained using Pt/Al2O3 and Pt-Ir/ZrO2-SO42- sytems. The overall results clearly indicate that the partially reduced Mo and W oxides behave as bifunctional catalysts in a similar way to Pt deposited on acid supports. This bifunctional phase could be represented as MO2(Hx)ac (M= Mo, W) in which (Hx) represents the Brönsted acid (ac)groups present on the surface. The metallic function is due to the delocalized electrons in MO2
Turtayeva, Zarina. "Genesis of AEMFC (anion exchange membrane fuel cell) at the lab scale : from PEMFC’s inks composition toward fuel cell bench tests in alkaline media." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0285.
Anion exchange membrane fuel cells (AEMFCs) have recently attracted significant attention as low-cost alternative fuel cells to traditional proton exchange membrane fuel cells as a result of the possible use of platinum-group metal-free electrocatalysts. Although AEMFC is a mimic of PEMFC but working in an alkaline medium, water management issues are more severe in AEMFC because ORR in alkaline media requires water, while at the same time water is produced at the anode side. To better understand water management in this type of fuel cell, it is necessary first to develop and gain experience with this kind of fuel cell on the laboratory scale. Since no ready-to-use materials are available at the beginning of the project, the necessity of fabricating homemade MEAs from commercially available materials becomes a reality that we must face. As MEA fabrication is a new topic to LEMTA's researchers, this is why this thesis was divided into two parts: one part dedicated to the formulation, preparation, and optimization of MEAs for PEMFC through physico-chemical and electrochemical characterizations; another part dedicated to the development of AEMFC. The results indicated that ink deposition, composition, and preparation systematically change the electrode structure and thus affect fuel cells performance. Furthermore, the study provides information on the AEMFC procedures and methods. Here, we would like to share our know-how with newcomers in the field of preparation of MEA in ion exchange membrane fuel cells
PAYET, DOMINIQUE. "Interactions entre l'adn et des derives du platine (ii) : activite catalytique de la double helice d'adn." Orléans, 1994. http://www.theses.fr/1994ORLE2029.
Issa, May. "Etude théorique et expérimentale de l'oxydation catalytique du noir de carbone : Influence du contact entre solides." Mulhouse, 2008. https://www.learning-center.uha.fr/opac/resource/etude-theorique-et-experimentale-de-loxydation-catalytique-du-noir-de-carbone-influence-du-contact-e/BUS4168757.
Stringent standards have been imposed to reduce the emisions of soot particulates known by their danger for human health and environnment. DPF (Diesel particulate filter), enables to collect soot particulates in the exhaust gas, should be regernerated periodically by soot combustion. This regeneration could be active or passive. Passive regeneration uses catalysts in the filter to promote soot oxidation at lower temperatures (400-500°C). Therefore, this investigation was dedicated to the effect of contact between carbon black (model of diesel soot) and catalyst (cerium oxide) and its influence on carbon black oxidation in the presence of oxygen. A correlation between the morphology of mixtures of carbon black and cerium oxide and the reactivity of carbon black was established. Mathematical models (1D and 3D) were developped. These models predict soot oxidation taking into account different parameters based on experimental results. In partiuclar, the three dimensionnai model represents the studied mixtures considering that catalyst is composed of agregates with different sizes. These agregates, distributed randomly in the system, are composed of isometric elementary volumes of 200 nm of length. This representation enables to estimate the effect of the contact between carbon black and catalyst on carbon black oxidation. The model determines the catalytic neighberhood of each elementary volume of carbon black. A good agreement was obtained between experimental results and calculated ones by the model. Indeed, a three dimensionnai model based on geometrical representation of DPF was developped to get a better insight on the phenomena occuring during the regeneration process
Garreau, François. "Étude des relations entre structures et activités catalytiques dans le système nickel-molybdène-soufre /." Paris : Technip, 1987. http://catalogue.bnf.fr/ark:/12148/cb349659890.
Imberdis, Arnaud. "Réactions d’interconversion catalytiques entre composés C1 : CO2, CO, acide formique, méthanol, méthane et dérivés." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS306/document.
Our society has grown considerably thanks to the use of fossil resources. The use of these resources, in the field of energy or the chemical industry, leads to a disruption of the natural carbon cycle caused by the accumulation of an anthropogenic CO2 in the atmosphere. To overcome this issue, one of the conceivable solutions is to gradually abandon fossil hydrocarbons in favor of renewable carbon resources such as CO₂ for the storage of renewable energies and / or as a source of chemical products. The first building blocks obtained from CO2 are one carbon atom containing molecules, known as C1 compounds. It includes methane (CH4), carbon monoxide (CO), methanol (CH3OH), formic acid (HCOOH). These reactions are limited by their practicality, their yield or by their selectivity. Therefore, they are not an ideal solution to the initial problem. In this context, this doctoral work has explored alternative ways of interconverting these compounds to offer CO2 recovery pathways. In the first place, the use of HCOOH was proposed as a CO vector. This topic is born of the growing interest for the organic chemistry sector to obtain liquid or solid sources of CO. In a second step, a new disproportionation strategy was developed to access CH3OH from HCOOH derivatives, the silicon formates. These reagents allow to avoid the thermodynamic limitation related to the disproportionation of HCOOH. The control of the silylated by-products recycling enabled the success of this transformation. A new CH4 production route was also developed from CH3OH using HCOOH as a reducing agent. Finally, the knowledge acquired on CO2 activation and reactivity enabled a transposition by analogy to other iso-electronic molecules, including carbodiimides in order to form the isoureas under organocatalytic conditions
Durin, Guillaume. "Mécanisme catalytique de la protochlorophyllide oxydoréductase : étude du couplage entre activité fonctionnelle et dynamique de la protéine." Phd thesis, Université Joseph Fourier (Grenoble), 2005. http://tel.archives-ouvertes.fr/tel-00011429.
Nous avons d'abord mis en évidence que la longueur d'onde et l'intensité de la source de lumière choisie pour déclencher la réaction à basse température influait directement sur le mécanisme réactionnel suivi, révélant par la même l'existence d'une « branche morte » de la réaction, dont le produit n'est pas la chlorophyllide.
Nous avons ensuite suivi par spectroscopie d'absorption et de fluorescence le déroulement des deux mécanismes réactionnels : la branche physiologique et la « branche morte ». Ces études ont été réalisées entre 100 et 293 K dans des solutions de viscosités différentes, afin de faire varier la température de transition vitreuse (Tg) du solvant. En suivant en parallèle Tg et la formation des différents états intermédiaires, nous avons montré que les étapes initiales du premier mécanisme étaient couplées avec cette transition alors qu'elles en étaient indépendantes pour le second. Ces travaux ont permis de mettre en évidence l'existence de différents types de mouvements régissant l'activité fonctionnelle de la protéine, certains couplés avec le solvant (« bulk solvent ») et d'autres de type harmonique, indépendants du solvant.
Haddoud, Farah. "Utilisation du peroxyde d'hydrogène pour l'oxydation de déchets industriels à une température comprise entre 100 et 150oC : étude de la dégradation des acides carboxyliques légers." Toulouse, INSA, 1989. http://www.theses.fr/1989ISAT0025.
Cheval, Muriel. "Correlations entre les proprietes catalytiques et les etats de surface de tungstene : metal, oxyde, carbure, oxycarbures." Université Louis Pasteur (Strasbourg) (1971-2008), 1992. http://www.theses.fr/1992STR13141.
Boulard, Séverine. "Couplage entre transport et adsorption d'hydrocarbures dans des matériaux catalytiques microporeux destinés à la réduction des NOx." Mulhouse, 2005. http://www.theses.fr/2005MULH0789.
Severe European standards require car manufacturers to think about efficient post-combustion systems. Zeolites,microporous materials,have aroused a large interest in this domain. To improve the specifications of such systems,it is necessary to have a better knowledge of the reaction mechanisms. This work has been performed in this point of view. Inverse gas chromatography technique has been used for the determination of the adsorption and transport properties of hydrocarbons within these catalytic materials. From the chromatographic response curve,we can determine relevant information,such as Henry's constants and diffusion coefficients. A qualitative study has been realised to investigate the accessibility of hydrocarbons to the pores of the materials. Thermodynamic and diffusional parameters have been determined. A simulation modelling of the chromatographic response curve has been adjusted,allowing better estimations of the diffusion coefficients of the probes