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Статті в журналах з теми "Réduction du CO":
Chervet, Bernard. "Destin opératoire, co-excitation sexuelle et érogénéité." Revue française de psychanalyse o 62, no. 5 (May 1, 1998): 1535–48. http://dx.doi.org/10.3917/rfp.g1998.62n5.1535.
Picot-Ngo, Clément, Joëlle Kivits, and Karine Chevreul. "Réduire le tabagisme dans les prisons : éléments théoriques et méthodologiques nécessaires à la co-construction d’une intervention en contexte pénitentiaire." Global Health Promotion 28, no. 1_suppl (March 2021): 8–14. http://dx.doi.org/10.1177/1757975921993434.
Delprat-Jannaud, Florence. "Le captage et le stockage du CO2." Reflets de la physique, no. 77 (February 2024): 78–85. http://dx.doi.org/10.1051/refdp/202477078.
Jauffret-Roustide, Marie, and Marie Debrus. "Co-production des savoirs sur l’usage de drogues et réduction des injustices épistémiques." Déviance et Société Vol. 47, no. 1 (December 15, 2022): 3–34. http://dx.doi.org/10.3917/ds.471.0005.
Gurviez, Patricia, and Lucie Sirieix. "L’éthique, un enjeu pour les acteurs du système alimentaire ?" Économies et Sociétés. Systèmes agroalimentaires 43, no. 1131 (2009): 1761–80. http://dx.doi.org/10.3406/esag.2009.991.
Wright, Vincent. "L’État administratif, mythe et réalité." Revue française d'administration publique 93, no. 1 (2000): 47–56. http://dx.doi.org/10.3406/rfap.2000.3361.
Cazé, Damien. "Les défis de la croissance du trafic et de la transition écologique." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (June 14, 2024): 11–14. http://dx.doi.org/10.3917/rindu1.242.0011.
Charlez, Philippe. "Rôle de l’énergie dans la société de croissance considérée en tant que système complexe." Annales des Mines - Responsabilité et environnement N° 111, no. 3 (October 20, 2023): 29–33. http://dx.doi.org/10.3917/re1.111.0029.
Guénan, Karine. "L’avion à hydrogène ZEROe : défis technologiques et impacts sur l’écosystème." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (June 14, 2024): 99–103. http://dx.doi.org/10.3917/rindu1.242.0099.
Parisot, Frédéric. "La filière industrielle aéronautique et spatiale en route vers une aviation décarbonée." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (June 14, 2024): 66–68. http://dx.doi.org/10.3917/rindu1.242.0066.
Дисертації з теми "Réduction du CO":
Villagra, Angel Eduardo. "Photo-dissociation de l'eau et photo-réduction du CO₂ assistées par co-catalyse moléculaire." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS282/document.
The main objective of this research work was to put into evidence the co-catalytic effect of organo-metallic molecular complexes containing transition metals as reactive centers, adsorbed at the surface of doped semiconductors with photo-activity with regard to water photo-dissociation and carbon dioxide photo-reduction, in view of practical applications in photochemistry and photo-electrochemistry. First, appropriate materials (two photoactive semiconductors and two molecular co-catalysts) have been identified and selected (results are presented in chapter I). Then, we have designed, constructed and optimized a specific test bench that can be used for the continuous detection and titration of reaction products (results are presented in chapter II). Product analysis was achieved by coupling a gas-phase chromatograph to the photo-electrochemical reactor. Then, photoactive semiconductors and molecular co-catalysts have been elaborated/synthesized and their intrinsic properties have been measured (results are presented in chapter III). Finally, the co-catalytic activity of molecular complexes has been put into evidence and several performance indicators such as reaction kinetics and turn-over frequency have been measured (results are presented in chapter IV)
Malfoy, Philippe. "Réduction catalytique de NO et N2O par H2, CO ou C3H8." Lille 1, 1997. http://www.theses.fr/1997LIL10183.
Gotico, Philipp. "Stratégies bio-inspirées pour la réduction catalytique et la valorisation du dioxyde de carbone." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS283/document.
The criticality of global warming urges for the advancement of science to reduce carbon dioxide (CO₂) emissions in the atmosphere. At the heart of this challenge is the development of sustainable catalysts that can help capture, activate, reduce, and eventually valorize CO₂. This PhD work tried to respond to this call by developing molecular mimics inspired by natural systems in the larger scheme of artificial photosynthesis. Firstly, it involved tracking the journey of a photon of visible light and how it is transformed to a reducing power able to reduce CO₂. Secondly, in search for more efficient and stable catalysts, new mimics were synthesized inspired by the exceptional performance of CO dehydrogenase enzymes (CODH) in reducing CO₂. Lastly, further understanding of CODH also led to a proof-of-concept that directly valorizes the photo-produced CO for the synthesis of isotopically-labelled amide bonds, a common motif in pharmaceutically-relevant drugs
Duong, Hong Phong. "Highly selective electrocatalysts for carbon monoxide conversion to multi-carbon products." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS467.
Carbon dioxide (CO2) valorization by electrolysis has shown its potential as an environmentally friendly and efficient method to synthesize value-added products like hydrocarbons and alcohols. However, the detrimental issue associated with carbonation in alkaline electrolyte limited the possibility to scale up CO2 electrolysis. Lately, a two-step concept, in which CO2 was firstly reduced into carbon monoxide (CO) with an industrially relevant Faradaic efficiency (FE) of 90% by a solid oxide electrochemical cell, then CO would be subsequently electrochemically reduced into ethylene with a high FE of 60% has been realized. As a result, there has recently been great attention focused on finding selective heterogeneous electrocatalysts to reduce CO into essential multi-carbon products. In this thesis, several copper-based electrocatalysts exhibiting high activity for CO conversion into ethylene, n-propanol and ethanol will be presented. The first chapter focuses on an original dendritic copper catalyst showing excellent selectivity for ethylene production from CO electrochemical reduction. The system exhibited the record FE for ethylene of 78% at an applied current density of 100 mA cm-2 with a record half-cell energy efficiency of 40.5%. In the second chapter, our attempt was focused on developing a nitride-derived silver- doped copper (CuAgN) electrocatalyst showing a high selectivity for CO electroreduction to n-propanol at the optimized condition (FE = 45%, an applied current density of 150 mA cm-2). In comparison with the bare copper nanoparticles, copper nitride and silver-doped copper nanoparticles, the CuAgN material possessed much higher electrochemically active surface area and CO conversion selectivity for n-propanol. Interestingly, the selectivity for C2+ liquid products of CuAgN was largely dependent on the concentration of KOH electrolyte. By employing in-situ characterization and computational modelling, a mechanism for n-propanol production was proposed as the presence of Ag could promote C1-C2 coupling reactions on the CuAg catalyst surface. Finally, according to the literature, C1-C2 coupling reactions were proposed as the key of C3+ products formation, thus the presence of a C2 substrate like acetaldehyde was presumed to boost C3+ products formation. The third chapter demonstrates the effect of an ab initio addition of acetaldehyde as a C2 substrate to CO electrolysis on the selectivity of the CuAgN, D-Cu catalysts, and commercial copper or silver nanoparticles
Bikrani, Mohammed. "Quelques applications des complexes (n(6)-arène)Cr(CO)3 en synthèse électrochimique." Dijon, 1986. http://www.theses.fr/1986DIJOS019.
Guillet, Jérôme. "Etude et réduction d'ordre de modèles linéraires structurés : application à la dynamique du véhicule." Phd thesis, Université de Haute Alsace - Mulhouse, 2011. http://tel.archives-ouvertes.fr/tel-00807199.
Bazzi, Sakna. "Electrogenerated divalent samarium for CO₂ activation : applications in carboxylic acid synthesis." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS397.
CO₂ activation is considered one of the most attractive tools to convert this cheap, abundant and non-toxic gas into valuable chemical feedstocks such as carboxylic acids. The market value of these compounds is expecting a significant increase in the next few years, thus the urgent need for sustainable and eco-friendly production pathways. Divalent samarium complexes are known for their strong monoelectronic reductive power that made them the perfect choice for the reduction of some challenging functional groups. Indeed, in the literature, this reagent has been used in combination with CO₂ but only to achieve the reductive disproportionation of CO₂ while no example reported C-C bond formation via CO₂ activation using the Sm(II) complexes. Herein, we report the CO₂ activation initiated by electrogenerated divalent samarium. Taking advantage of our recently developed method for the in situ generation of Sm(II) species, the synthesis of benzoic acid derivatives was successfully achieved. Furthermore, electrocatalytic CO₂ activation conditions were established in this work and applied not only for the preparation of phenylacetic acids from benzyl chloride derivatives but also for the regioselective hydrocarboxylation of styrene and phenylacetylene analogs. This electrochemical Sm(II)-based protocol offers the next generation of sustainable system to transform CO₂ into highly valued molecules under mild conditions and without the addition of co-reductants
Baati, Khaled. "Stratégie de réduction des cycles thermiques pour systèmes temps-réel multiprocesseurs sur puce." Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00947611.
Désilets, Christian. "Développement de nouveaux matériaux et d'outils électroanalytiques pour l'étude de la réduction électrochimique du CO[indice inférieur 2]." Mémoire, Université de Sherbrooke, 2011. http://savoirs.usherbrooke.ca/handle/11143/4895.
Gibilaro, Mathieu. "Co-réduction électrochimique de l'aluminium et des lanthanides en milieu fluorures fondus : application au traitement pyrochimique des effluents nucléaires." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/407/.
Nuclear reaction produces fission products such as lanthanides; these neutrophage elements represent a poison for the nuclear chain reaction and have to be extracted. This thesis concerns lanthanides extraction (neodymium, cerium and samarium) by electrodeposition in the LiF-CaF2 eutectic mixture at 840 °C. The process used is an alloy formation with aluminium by electrochemical co-reduction on an inert tungsten electrode. This technique is based on the simultaneous reduction of Al(III) and Ln(III) ions to obtain an alloy at the cathode. A decrease of the lanthanide activity in the alloy is obtained due to Al-Ln formation and a shift of lanthanide reduction potential to more positive values is observed: the theoretical extraction efficiency is then approaching 100 %. When both Ln(III) and Al(III) ions are present in the molten salt, new reduction waves appear between Al and Ln pure metal depositions and are attributed to Al-Ln alloy formation by co-reduction. The alloy compositions have been characterised in function of electrolysis potential: the more the electrolysis potential is negative, higher is the Ln content in the alloy. Finally, extractions by potentiostatic electrolyses have been carried out and the extraction efficiencies for the different lanthanides are higher than 99. 4 %
Книги з теми "Réduction du CO":
Lecomte, Fabrice. CO₂ capture: Technologies to reduce greenhouse gas emissions. Paris, France: Editions Technip, 2010.
Halmann, Martin M. Chemical fixation of carbon dioxide: Methods for recycling CO₂ into useful products. Boca Raton: CRC Press, 1993.
C, Thomas David, and Benson Sally, eds. Carb on dioxide capture for storage in deep geologic formations: Results from the COb2s Capture Project. Amsterdam: Elsevier, 2005.
(Editor), David Thomas, and Sally Benson (Editor), eds. Carbon Dioxide Capture for Storage in Deep Geologic Formations - Results from the CO² Capture Project: Vol 1 - Capture and Separation of Carbon Dioxide ... and Verification (Co2 Capture Project). Elsevier Science, 2005.
Частини книг з теми "Réduction du CO":
Basse, Diaga. "Recherches sur la Sustainability." In Recherches sur la Sustainability, 213–32. EMS Editions, 2023. http://dx.doi.org/10.3917/ems.cheva.2023.01.0213.
Maaziz, Lyna. "Annuaire français de relations internationales." In Annuaire français de relations internationales, 765–79. Éditions Panthéon-Assas, 2024. http://dx.doi.org/10.3917/epas.ferna.2024.01.0765.