Дисертації з теми "Hydrogénation du monoxyde de carbone"
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Mazouari, Ali Al. "Hydrogénation du monoxyde de carbone sur des catalyseurs carbures de tungstène supportés sur différents oxydes." Lille 1, 1990. http://www.theses.fr/1990LIL10064.
Повний текст джерелаUrresta, Aragon Julian Diel. "Conversion sélective de gaz carbonique en alcools et en hydrocarbures en présence de catalyseurs à base de molybdène." Poitiers, 1995. http://www.theses.fr/1995POIT2352.
Повний текст джерелаZein, Eddin Mohamed Yahia. "Caractérisation de catalyseurs bimétalliques cobalt-manganèse issus de carbonyles, actifs en hydrogénation du CO." Lyon 1, 1989. http://www.theses.fr/1989LYO10094.
Повний текст джерелаBalloy, David. "Étude et mise en oeuvre des catalyseurs Co et Co+Ru/Al2O3 pour la synthèse de carburants diesel." Compiègne, 1997. http://www.theses.fr/1997COMP1011.
Повний текст джерелаDujardin, Christophe. "Caractérisation de catalyseurs d'hydrotraitement par réactions modèles et spectroscopie infrarouge : apport à la compréhension du fonctionnement sur charge réelle." Caen, 2002. http://www.theses.fr/2002CAEN2009.
Повний текст джерелаMichel, Anne-Charlotte. "Structure et réactivité en chimisorption et catalyse des alliages Pd8Ni92 (111) et (110)." Lyon 1, 2000. http://www.theses.fr/2000LYO10264.
Повний текст джерелаPirim, Claire. "Etude de réactions radicalaires des milieux interstellaires par spectroscopie infrarouge à transformée de Fourier, de la phase condensée à la phase diluée." Paris 6, 2011. http://www.theses.fr/2011PA066560.
Повний текст джерелаMouaddib, Najat. "Synthèse des alcools supérieurs à partir de CO + H2 sur des catalyseurs CuCo supportés : influence du support." Lyon 1, 1989. http://www.theses.fr/1989LYO10058.
Повний текст джерелаAzizi, Yassine. "Influence des propriétés de surface d'oxydes mixtes sur l'ancrage de particules d'or : application dans des réactions catalytiques d'oxydation et d'hydrogénation de l'acétylène." Strasbourg, 2009. http://www.theses.fr/2009STRA6059.
Повний текст джерелаThe active of gold nanoparticles, is affected by many parameters extensively described in the literature: pH and concentration of the solution, IEP of the support, type of heat treatment, etc. This work describes the steps of development of catalysts based on gold supported on single oxides CeO2, TiO2 and ZrO2 and binary mixed oxides as solid solution: CeO2-ZrO2, TiO2- ZrO2 and CeO2-TiO2 with various ratios Ce/Zr, Ti/Zr and Ce/Ti and the subsequent applications of these catalysts in oxidation reactions and selective hydrogenation of acetylene. The comparison of the physicochemical properties of various catalysts showed the strong influence of the surface state of the support on the particle size and on the reactivity in CO and the complexity of metal-support interactions from the preparation of catalysts. We have highlighted the influence of support on the mechanisms in the reactions involving acetylene
Ries, Catherine. "Les développements récents de la chimie du manganèse et de ses dérivés." Strasbourg 1, 1985. http://www.theses.fr/1985STR10494.
Повний текст джерелаNasr, Allah Tawfiq. "Création de liaisons C-C et C-N par transformation catalytique du CO et du CO₂." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS607/document.
Повний текст джерелаApart from the preparation of salicylic acid and urea, few attempts have been made so far to promote the formation of C-C and C-N bonds from CO₂. This thesis describes new catalytic processes allowing the formation of nitrogen compounds through the creation of C-N and C-C bonds by catalytic transformations of CO and CO₂. The chosen targets are the amides and the alkylamines which are essential in fine organic chemistry and yet prepared from petrochemicals. In a first part, the amide synthesis by formal carbonylation of the C-N bond HAS been studied using catalysts based on first row transition metal carbonyl complexes. In a second part, methods enabling homologation of amines are described through the use of metal catalysts. The first strategy involved the use of cobalt catalysts in presence of CO and hydrosilanes which allow the selective homologation of N-methyl into N-ethyl derivatives under a low CO pressure (P= 8 bar). Also, the alkyl chain can be homologated under elevated CO pressures to reach N-pentyl derivatives. Finally, the use of a ruthenium catalyst in presence of a synthesis gas (CO / H₂) allowed us to demonstrate the possibility of the homologation of the diphenylamine. Understanding this system led to translate the amine homologation with syngas to the use of CO₂ as a substitute for CO
Paredes-Nunez, Anaëlle. "Étude de la réaction d’hydrogénation du CO sur des catalyseurs à base de cobalt supporté par DRIFTS operando." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1200.
Повний текст джерелаOur dependence on fossil fuels and the decrease of oil resources warrant the search for renewable energy sources and chemicals. Fischer-Tropsch synthesis enables meeting the requirements for cleaner and renewable fuels through the use of syngas obtained from biomass.The objective of this work was to contribute to the understanding of the mechanism of CO hydrogenation on cobalt-based catalysts and the identification of the active site by operando DRIFT spectroscopy. Different species were adsorbed on the surface of the catalyst under reaction conditions: bridged and linear CO, formates, carboxylates and hydrocarbons. Our resutls shows that so-called “fast formate” can account for the formation of methanol under our reaction conditions. The study of a typical biomass element, chlorine, revealed that the activity decreased under trichloroethylene,. The CO bridged band being the most affected band and shifting to higher wavenumber, the chlorine effect was partly associated with an electronic effect on cobalt. Chlorine adsorption being reversible, tin poisoning was also studied. This metal does not adsorb CO under our conditions. Tin addition to cobalt selectively poisons bridged CO and greatly limits the chemisorption of hydrogen. A linear relationship between the rate of formation of products and the proportion of CO bridged is observed, highlighting the importance of CO bridged
Gonzales, Cécile. "Neurotoxicité du monoxyde de carbone." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2P041.
Повний текст джерелаPétron, Gabrielle. "Modélisation inverse des émissions du monoxyde de carbone." Paris 6, 2003. http://www.theses.fr/2003PA066256.
Повний текст джерелаMathieu, Laurence. "Intoxication aigue͏̈ au monoxyde de carbone : étude de cas cliniques au centre hospitalier de la côte basque." Bordeaux 2, 1992. http://www.theses.fr/1992BOR2P051.
Повний текст джерелаLiégault, Benoît. "Transformations catalytiques sélectives : couplage carbone-carbone par catalyse au palladium, hydrogénation par catalyse au rhodium et au ruthénium, nouveaux ligands et aldolisation énantiosélective par organocatalyse." Rennes 1, 2006. http://www.theses.fr/2006REN1S071.
Повний текст джерелаDesmard, Mathieu. "Effets antibactériens sur Pseudomonas aeruginosa des donneurs de monoxyde de carbone." Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST0039.
Повний текст джерелаThe search of new molecules to fight Pseudomonas.aeruginosa is of paramount importance. The use of broad spectrum antibiotics has greatly increased the antibiotic resistance of P.aeruginosa. In spite of this situation, no new drug against P.aeruginosa has been successfully introduced into the clinic in the past 2 decades. Carbon monoxide (CO) could act as an effective inhibitor of the respiratory chain in P. aeruginosa but the practical use of this gas as an antibacterial molecule is hampered by its toxicity and difficulty to manipulate. A recent fundamental development in the field of CO research has been the discovery of carbon monoxide-releasing molecules (CO-RMs), which serve as carriers for the delivery of controlled amounts of CO in biological systems.Here, we show that CO-RMs possesse bactericidal properties against P.aeruginosa. This antimicrobial effect of CO-RMs occurs at non toxic concentrations for eukaryotic cells and is mediated by an interaction of CO liberated by the carrier with bacterial respiratory chain. We present in vivo results showing that CO-RMs decrease bacterial inoculum and increase survival in mice following P.aeruginosa bacteraemia. A comparison of 4 CO-RMs with different chemical structures suggests that the presence of a transition metal center plays an important role in the antibacterial activity of CO-RMs. Another important finding presented in this work is the inhibition of the antibacterial activity of some CO-RMs by thiol containing molecules. This finding could deserve the possibility to use concerning CO-RMs as anti-infective agent.Considering results presented in this work, inhibition of respiratory chain could be considered as a promising new mechanism for the research in new pharmaceutical agent to fight P.aeruginosa infections
Escaffre, Pascale. "Mise en oeuvre de complexes dinucléaires du rhodium (I) dans la réaction d'hydroformylation des alcènes utilisant les couples monoxyde de carbone-hydrogène et monoxyde de carbone-eau." Toulouse, INPT, 1986. http://www.theses.fr/1986INPT017G.
Повний текст джерелаEscaffre, Pascale. "Mise en oeuvre de complexes dinucléaires du rhodium (i) dans la réaction d'hydroformylation des alcènes utilisant les couples monoxyde de carbone-hydrogène et monoxyde de carbone-eau." Grenoble : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37597480b.
Повний текст джерелаLanguille, Marie-Angélique. "Étude in situ de surfaces monocristallines Au et Pd-Au : adsorption du CO et de O2." Lyon 1, 2008. http://www.theses.fr/2008LYO10034.
Повний текст джерелаInterest for catalysis by gold has grown since about fifteen years. This work fits within an approach to gain understanding, at atomic scale, of the adsorption of the gases participating in the oxidation of carbon monoxide on single-crystal surfaces of gold and palladium-gold alloy. Furthermore, the aim is to characterise surfaces under gas pressure. In order to do so, recently developed /in situ/ analysis techniques (STM, XPS, PM-IRRAS and SXRD) are operated from UHV conditions up to 500Torr. CO adsorbs on Au(110), Au(111) and Pd-Au(110) surfaces on top sites – and also on bridge sites in the case of the bi-metallic surface. This adsorption induces strong modification of the surface characteristics (morphology, structure, electronic properties). Surface reconstructions are described as a function of p(CO). While the structure and the morphology of single-crystal gold surfaces remain unchanged under p(O_2 ), Pd segregation and subsequent surface PdO formation is observed for the alloy surface
Yang, Jianming. "Etude expérimentale et théorique du vieillissement de catalyseurs d'oxydation de CO utilisés dans le traitement de la pollution automobile." Mulhouse, 2008. https://www.learning-center.uha.fr/opac/resource/etude-experimentale-et-theorique-du-vieillissement-de-catalyseurs-doxydation-de-co-utilises-dans-le-/BUS4048250.
Повний текст джерелаThe aim of the research is to make the link between sintering of a 1. 6% Pt/A1203 catalyst and its activity for CO oxidation reaction. Thermal aging of this catalyst for different durations under 7% 02, led to a shift of the platinum particle size distributions towards larger diameters, due to sintering. These distributions are studied by TEM. The catalytic activity for CO oxidation under different CO and 02 inlet concentrations decreases after aging the catalyst. The CO oxidation reaction is structure sensitive with a catalytic activity increasing with the platinum particle size. A global kinetic law is proposed. In this low kinetic constant (k) is function of platinum particles diameter. It allows the simulation of the CO conversion curves during a temperature ramp. A platinum site located on a planar face is found to be more active than a platinum site on edges or corners, whatever the temperature
Nadjar, Ibticem. "Effet de la présence d'hydrocarbures et de vapeur d'eau sur l'oxydation catalytique du monoxyde de carbone." Mulhouse, 2003. http://www.theses.fr/2003MULH0733.
Повний текст джерелаCatalytic tests were carried out in a fixed bed reactor considering Diesel start-up conditions to study the effect of unreacted hydrocarbons and water vapour on the CO oxidation on platinum-containing catalysts at low temperature (<200ʿC). A promotion of the CO oxidation by water vapour is observed when CO, O2 and water are present in the inlet gas : the light-off temperature of CO decreases by a value superior to 20ʿC. This result suggests that two mechanisms are concomitant : oxidation between CO and O2, and another one with a catalytic effect of water. In opposite, hydrocarbons inhibit the CO oxidation, and this effect increases in presence of water. Hence, hydrocarbons interfere in the CO oxidation reaction and also in the one catalysed by water. The computation of the kinetic parameters based on a modified Langmuir-Hinshelwood equation provides a consistent representation of the hydrocarbons and water effects on the CO oxidation
Quesneau, Valentin. "Capture sélective du monoxyde de carbone par des corroles de cobalt et application à la mise au point d'un détecteur de gaz." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK074.
Повний текст джерелаThis work aims to develop cobalt corroles for sub-ppm carbon monoxide detection. Surnamed “the silent killer”, detection at low-level of this gas represents a public health and an industrial challenge.During this work, synthesized tetra-coordinated cobalt corroles were found to be not stable over time. A new approach was developed, using labile axial ligands as protective groups of the tetra-coordinated cobalt corrole. This strategy leads to a ppb level detection sensor.The synthesis of new porous organic polymer based on cobalt corroles represents the last part of this work. Gas sorption measurement of these new materials are encouraging for their development for carbon monoxide detection or storage
Schuwey, Dominique. "Equilibre du monoxyde de carbone dans le sang du cordon ombilical humain /." Bern, 1991. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Повний текст джерелаBrasselet, Martine. "Intoxication aigue du monoxyde de carbone chez l'enfant : etude retrospective concernant 140 observations." Lille 2, 1992. http://www.theses.fr/1992LIL2M122.
Повний текст джерелаAhlafi, Hammou. "Hydrogénation d'espèces carbonées adsorbées sur un catalyseur au fer : expérimentation et modélisation cinétique." Lyon 1, 1990. http://www.theses.fr/1990LYO10080.
Повний текст джерелаPetitprez, Jérôme. "La relation entre les concentrations sanguines en monoxyde de carbone (CO) et les symptômes lors d'intoxications pures au CO." Paris 5, 1998. http://www.theses.fr/1998PA05P153.
Повний текст джерелаHerman, Michel. "Contribution à la spectroscopie moléculaire à l'aide d'un laser à monoxyde de carbone." Doctoral thesis, Universite Libre de Bruxelles, 1985. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213649.
Повний текст джерелаDubois, Laetitia. "Hydrogénation électrocatalytique sur électrode de palladium déposé sur carbone : applications dans le réacteur Priam." Paris 6, 2002. http://www.theses.fr/2002PA066107.
Повний текст джерелаAgunaou, Mahfoud. "Évolution des propriétés physico-chimiques des oxydes BixGd1−xVO4, catalyseurs d'hydrogénation du dioxyde de carbone." Lille 1, 1991. http://www.theses.fr/1991LIL10066.
Повний текст джерелаBensalem, Samia. "Etudes mécanistiques de réactions de couplage carbone-carbone catalysées par le palladium." Paris 7, 2003. http://www.theses.fr/2003PA077136.
Повний текст джерелаMissler, Jacques. "Le transfert pulmonaire du monoxyde de carbone en régime stable : recherche de valeurs théoriques." Nancy 1, 1988. http://www.theses.fr/1988NAN11129.
Повний текст джерелаColombet, Jean-François. "Activité catalytique de quelques oxydes de structure pérovskite pour l'oxydation du monoxyde de carbone." Bordeaux 1, 1988. http://www.theses.fr/1988BOR10531.
Повний текст джерелаChami, Jamal. "Hydrocondensation du monoxyde de carbone et réactivité des produits oxygènes sur catalyseurs au cobalt." Poitiers, 1989. http://www.theses.fr/1989POIT2314.
Повний текст джерелаColombet, Jean-François. "Activité catalytique de quelques oxydes de structure pérovskite pour l'oxydation du monoxyde de carbone." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612955t.
Повний текст джерелаGosset, Cyrille. "Réactions photorédox appliquées à la valorisation du monoxyde de carbone et du 1,3-butadiène." Thesis, Lille, 2019. http://www.theses.fr/2019LIL1R034.
Повний текст джерелаPhotocatalysis field is of great interest because it allows development of eco-friendly processes and use of mild conditions. Many organic and organometallic photocatalysts, such as xanthenes, as well as ruthenium and iridium complexes were then developed. To date, very few examples describe recovery of gases such as carbon monoxide and butadiene by photoredox catalysis. Therefore, the work presented in this thesis has reported synthesis of arylcarboxylic acids and fonctionalisation in position α of aldehydes, photocatalysed respectively by ruthenium tris(bipyridine) and eosin Y, under pressure of carbon monoxide. Valorisation of butadiene has also been described using Meerwein arylation from aryl diazonium salts, associated with Ritter reaction, photocatalysed by ruthenium tris(bipyridine). Meerwein arylation has also been conjugated to nucleophiles other than nitriles, as well as cyclisation steps for dihydroisoquinoleines and isochromanones synthesis. Finally, phtalides synthesis was carried out by intramolecular cyclisation, photocatalysed by 4CzIPN
Croci, Mirko. "Chimisorption et diffusion de surface du monoxyde de carbone et chimisorption du monoxyde d'azote sur le platine (111) : étude par jet d'hélium thermique /." [S.l.] : [s.n.], 1992. http://library.epfl.ch/theses/?display=detail&nr=1100.
Повний текст джерелаAngelo, Laetitia. "Développement de catalyseurs pour la synthèse de méthanol produit par hydrogénation du dioxyde de carbone." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF051/document.
Повний текст джерелаNumerous measures to reduce anthropogenic emissions of greenhouse gases, especially CO2, already exist; however they are still insufficient. It is in this context that the ANR project VItESSE2 emerged to develop a method for converting CO2 produced by industries. The aim of this project is to transform CO2 into methanol, by reduction with hydrogen produced by water electrolysis using electricity provided by decarbonised energies (nuclear and renewable energies). This process also allows to secure a management function of the electrical grid by connecting the production of hydrogen to the available quantity of electricity in the network. The main objectives of this thesis are the synthesis and the characterization of efficient catalysts for CO2 hydrogenation into methanol and the development of reaction conditions leading to improved methanol productivity. The optimization of catalyst systems allowed to develop a CuO-ZnO-ZrO2 catalyst competitive in relation to commercial catalysts currently on the market
Tran, Sophie. "Caractérisation expérimentale en laboratoire et en zone arctique de la source océanique du monoxyde de carbone et des hydrocarbures non méthaniques légers." Paris 6, 2012. http://www.theses.fr/2012PA066059.
Повний текст джерелаPolar regions are very sensitive areas to climate change and anthropogenic pollution. Tropospheric ozone is greatly influenced by the emissions of carbon monoxide (CO) and non-methane hydrocarbons (NHMC). Although mainly produced by terrestrial sources these compounds are also emitted by the oceans. High uncertainties still remain about the intensity and variability of the marine source of those gaseous compounds with short life time and high reactivity in the atmosphere and it is therefore important to better characterize their oceanic source. This work aims at characterizing for the first time CO and light NMHC marine sources in the Arctic region and investigating their production processes. A large part of this study was based on an important experimental work in order to develop a reliable method to quantify the dissolved gases. Laboratory experiment on five phytoplankton monocultures has been data processed and their analysis has confirmed the photoproduction mechanism of CO and alkenes by the degradation of the chromophoric dissolved organic matter under UV radiation and highlighted the evidence of carbon monoxide direct emission by the living cells. The phytoplankton role on CO and NMHC production has then been further investigated in situ in the Arctic Ocean, during an oceanographic cruise in summer 2010. The results pointed out a highly productive photochemical process at the sea surface in sea ice and a biological source of CO. Isoprene, known for its biological source, has showing maxima occurring mainly between 10 and 40m. Depth coinciding with the maximum of the phytoplankton biomass
Duprat, Anne-Marie. "Relations structure-activité catalytique pour l'oxydation du monoxyde de carbone dans des manganites mixtes de type spinelle et perovskite." Toulouse 3, 1995. http://www.theses.fr/1995TOU30052.
Повний текст джерелаAguir, Mohamed Baha Eddine. "Détermination du potentiel et du moment dipolaire de CO2 à partir de données spectroscopiques IR : application au calcul des positions et intensités IR à haute température." Châtenay-Malabry, Ecole centrale de Paris, 2001. http://www.theses.fr/2001ECAP0716.
Повний текст джерелаThis study was motivated by the lack of infrared spectroscopic data of CO2 for high temperature applications. Rovibrational energies of carbon dioxide were computed using the Lanczos method. The eigenvectors were computed with the help of the inverse iteration method coupled to the conjugate gradient method. The Hamiltonian of CO2 was projected on the harmonic oscillators and the symmetric top rotor basis. In a first step, the potential energy surface and the dipole moment parameters of the main CO2 isotope were adjusted to some measured transition frequencies and line strengths respectively. This leads to the determination of 46 potential parameters and 19 dipolar moment parameters. 7 parameters of this dipole moment surface are related to its perpendicular component and 12 to its parallel component. The rovibrational energies of the e symmetry were then calculated for all J values up to 201 and for vibrational energies as high as 13000 cm-1. Eigenvectors and transition moments were computed for a limited number of j values. The energies and line strengths computed in this study are in good agreement with the available data measured or computed with other methods. To assign the rovibrational states, a continuity assignation method was developed in this work to improve the eigenvectors assignation method, which is not adapted for high J values. Finally, two procedures were proposed to compute, by interpolation of the calculated transition moments, the transition moments for all J belonging to bands likely to contribute to the infrared emission of CO2 at 3000 K
Heizmann, Jean-Julien Baro R. "Contribution à l'étude cinétique et structurale de la réduction de l'hématite Fe2O3 [alpha] en magnétite Fe3O4 par l'oxyde de carbone." Metz : Université de Metz, 2009. ftp://ftp.scd.univ-metz.fr/pub/Theses/1973/Heizmann.Jean_Julien.SMZ7304.pdf.
Повний текст джерелаRichard, Dominique. "Préparation, caractérisation et propriétés catalytiques de petits agrégats métalliques sur supports carbonés." Lyon 1, 1988. http://www.theses.fr/1988LYO10109.
Повний текст джерелаAgnelli, Miriam Eliana. "Analyse et modélisation de la désactivation de catalyseurs à base de nickel en réaction d'hydrogénation du CO." Lyon 1, 1992. http://www.theses.fr/1992LYO10148.
Повний текст джерелаPolle, Claude. "Contribution à l'étude des sources naturelles de monoxyde de carbone et d'hydrocarbures légers non méthaniques." Phd thesis, Université Pierre et Marie Curie - Paris VI, 1993. http://tel.archives-ouvertes.fr/tel-00780186.
Повний текст джерелаQuinet, Élodie. "Oxydation sélective du monoxyde de carbone en présence d’hydrogène sur des catalyseurs à base d’or." Thesis, Lyon 1, 2008. http://www.theses.fr/2008LYO10170.
Повний текст джерелаThe aim of this work is to propose a mechanism for the preferential carbon monoxide oxidation in hydrogen rich-gas over gold based catalysts by studying the role of gold, support and hydrogen. Gold catalysts was prepared by chemical way (direct anionic exchange or colloidal deposition) or physical way (lazer vaporization) and characterized by ICP-AES, XRD, TEM and XPS. Catalytic tests and DRIFTS in situ characterizations showed that finely dispersed gold is able to oxydize carbon monoxide and hydrogen. Nevertheless, carbon monoxide oxidation rate is highly increased when gold is supported, especially over a reducible oxide, or when hydrogen is added in the reactant mixture, even with a small amount. A kinetic study over alumina supported gold catalyst suggests that hydrogen is involved in carbon monoxide oxidation mechanism thanks to oxygenated species like : OOH, which are water formation intermediates and preferentially oxidize carbon monoxide than hydrogen at low temperature
Mayet, Nolwen. "Nanoélectrocatalyseurs d'or à morphologie contrôlée pour l'oxydation de molécules sondes : monoxyde de carbone et glucose." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT2313.
Повний текст джерелаInterfacial properties of metallic nanoparticles depend on their size, morphology, composition and the reaction medium. These unexpected properties offer numerous applications as in electrocatalysis. Unsupported nanoparticles are required for studying and understanding the intrinsic surface reactivity of nanocatalysts in interaction with various molecules such as carbon monoxide, glucose, glycerol and oxygen. Unsupported gold based shape controlled nanoparticles (nanorods, octahedral, etc.) were prepared by the seed mediated method. Physico-chemistry characterizations (UV‒visible, transmission electron microscopy, etc.) permitted to observe nanoparticles with expected shape and size. Electrochemical characterizations as underpotential deposition of lead by cyclic voltammetry revealed the crystallographic surface orientation and the presence of high Miller index (by a reductive desorption of 4‒mercaptobenzoic acid). Surface oxidation of such nanoparticles in supporting electrolyte depends on the surface crystallographic orientations. The oxidation of carbon monoxide on gold nanospheres with a mean diameter size of 24 nm was observed at a low potential as 0.2 V vs. RHE. Gold nanomaterials prepared in presence of silver and palladium showed a low onset potential of glucose oxidation (0.2 V vs. RHE, 100 mV lower than a pure gold nanomaterials). In alkaline medium, oxygen reduction and glucose oxidation reactions on core-shell (Au@Pd and Au@PdAg) showed 0.65×10−3 mA cm−2 and 0.55 V vs. RHE as an exchange current density and onset oxidation potential respectively. The gold core as well as the silver shell have thereby a benefit effect on these two reactions by decreasing the respective overpotential
Polle, Claude. "Contribution a l'etude des sources naturelles de monoxyde de carbone et d'hydrocarbures legers non methaniques." Paris 6, 1993. https://tel.archives-ouvertes.fr/tel-00780186.
Повний текст джерелаBoumahrou, Khalid. "La pollution par l'oxyde de carbone dans les locaux d'habitation : aspects toxicologiques, réglementaires et épidémiologiques." Bordeaux 2, 1992. http://www.theses.fr/1992BOR2P060.
Повний текст джерелаLABOURIE, VANTYGHEM EVELYNE. "Intoxication au monoxyde de carbone et grossesse : devenir maternel et infantile apres traitement par oxygenotherapie hyperbare." Lille 2, 1990. http://www.theses.fr/1990LIL2M357.
Повний текст джерела