Letteratura scientifica selezionata sul tema "Synthèse en sel fondu"
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Articoli di riviste sul tema "Synthèse en sel fondu":
Guidez, Joël, e Guillaume Campioni. "Molten Salt Reactor, un RNR à combustible liquide". Revue Générale Nucléaire, n. 5 (settembre 2019): 20–23. http://dx.doi.org/10.1051/rgn/20195020.
Merle, Elsa, Michel Allibert, Daniel Heuer e Axel Laureau. "Des sels fondus pour la 4e génération de réacteurs nucléaires ?" Reflets de la physique, n. 77 (febbraio 2024): 98–103. http://dx.doi.org/10.1051/refdp/202477098.
Tarkowski, R. "Les études géologiques du naturaliste français Jean-Étienne Guettard en Pologne (1760-1762)". Boletín Geológico y Minero 127, n. 2-3 (30 settembre 2016): 653–62. http://dx.doi.org/10.21701/bolgeomin.127.2-3.024.
Biquard, M., P. Letellier e M. Fromon. "Pressions de vapeur des mélanges eau – nitrate d'éthylammonium à 298,15 K. Propriétés thermodynamiques des milieux eau – sel fondu". Canadian Journal of Chemistry 63, n. 12 (1 dicembre 1985): 3587–92. http://dx.doi.org/10.1139/v85-589.
Raucoules, Daniel, Elisabeth Simonetto e Bénédicte Fruneau. "Observation et suivi de déformations de surface d'origine anthropique par interferométrie radar satellitaire". Revue Française de Photogrammétrie et de Télédétection, n. 219-220 (19 gennaio 2020): 73–82. http://dx.doi.org/10.52638/rfpt.2019.469.
Dravigney, Laurent. "Diagnostic coproscopique : quelles sont les techniques réalisables au cabinet ?" Le Nouveau Praticien Vétérinaire élevages & santé 14 (novembre 2022): 44–52. http://dx.doi.org/10.1051/npvelsa/2023008.
Aubertin, N., N. Neveux, R. Gerardin e O. Evrard. "Synthèse d'un sulfatoferrate de potassium et son efficacité dans le traitement des eaux". Revue des sciences de l'eau 9, n. 1 (12 aprile 2005): 17–30. http://dx.doi.org/10.7202/705240ar.
Baudoux, Dominique, e Robert Fuks. "Iminoalkylation Des Ènamines Avec Des Nitriles Via Le Sel De Nitrilium: Une Nouvelle Méthode De Synthèse D'Ènaminocétones Et De β-Dicétones." Bulletin des Sociétés Chimiques Belges 93, n. 11 (1 settembre 2010): 1009–18. http://dx.doi.org/10.1002/bscb.19840931112.
Lion, C., J. P. Boukou-Poba e C. Charvy. "Synthèse Dans La Série Des Phenanthridines I. Recherches Des Conditions Éxperimentales Optimales Dans La Préparation D'Alkyl-6 Phenanthridines Et De Leur Sel". Bulletin des Sociétés Chimiques Belges 98, n. 8 (1 settembre 2010): 557–66. http://dx.doi.org/10.1002/bscb.19890980806.
Khadraoui, Habib, Hélène Gillier, Driss El Manouni, Yves Leroux, Alain Neuman, Thierry Prangé, Jean-Paul Slvestre e Nguyen Quy Dao. "SYNTHèSE ET éTUDE STRUCTURALE D'ACIDES DIHYDROXYTéTRAPHOSPHONIQUES ET DE SELS DE CES ACIDES. II: SEL DE SODIUM DE L'ACIDE 1,6-DIHYDROXYDROXYHEXYLIDENE-1,1,6,6-TéTRAPHOSPHONIQUE (DHHTP)". Phosphorus, Sulfur, and Silicon and the Related Elements 127, n. 1 (1 agosto 1997): 67–79. http://dx.doi.org/10.1080/10426509708040497.
Tesi sul tema "Synthèse en sel fondu":
Bermis, Philippe. "Synthèse en sel fondu de poudres d'YBa2Cu3O(7-x) et application à l'élaboration de céramiques supraconductrices texturées". Grenoble INPG, 1991. http://www.theses.fr/1991INPG0111.
Vigier, Jean-François. "Synthèse d’oxydes d’actinides en milieu chlorure fondu : études structurales et mécanismes réactionnels". Electronic Thesis or Diss., Lille 1, 2012. http://www.theses.fr/2012LIL10051.
The study developed in this thesis concerns actinide oxides synthesis for nuclear fuel refabrication, and more specifically, the actinide (III) precipitation in molten salt LiCl-CaCl2 (30-70%mol) salt at 700°C using wet argon sparging. First, this conversion method is described for neodymium (III) and cerium (III) coconversion. The conversion rates are around 99.9%, and the obtained powders contain mixed oxychloride Ce1-xNdxOCl as main component, with a small amount of mixed oxide Ce1-xNdxO2-0.5x for the high cerium ratio. A second oxychloride CeIV(Nd0.7Ce0.3)IIIO3Cl is obtained in specific conditions and in very low quantity. The structure of this oxychloride is described in this study. The partially oxidative property of the conversion method induces the oxidation of a part of cerium (III) to oxidation state (IV). In the case of uranium (III) conversion by wet argon sparging, all the uranium is oxidized and give the oxide UO2 as single compound. The conversion rate for this element is over 99.9% in the molten chloride, but significant amount of uranium is lost by volatilization during the conversion. Finally, the U(III) and Pu(III) coconversion study shows the highest precipitation sensitivity of uranium (III) in comparison with plutonium (III), responsible of a successive conversion of the two elements, giving an oxide mixture of UO2 et PuO2 with quantitative conversion rate. Surprisingly, the conversion of Pu(III) in the same conditions led to a mixture of PuO2 and PuOCl, characteristic of a partial oxidation from Pu (III) to Pu (IV), in contrast with coconversion of U(III)-Pu(III)
DE, ROY GRIVEL MARIE ELISABETH. "Synthese par reduction electrochimique en milieu sel fondu et caracterisation d'oxydes doubles de vanadium a valence mixte". Clermont-Ferrand 2, 1991. http://www.theses.fr/1991CLF2E435.
Vigier, Jean-François. "Synthèse d’oxydes d’actinides en milieu chlorure fondu : études structurales et mécanismes réactionnels". Thesis, Lille 1, 2012. http://www.theses.fr/2012LIL10051/document.
The study developed in this thesis concerns actinide oxides synthesis for nuclear fuel refabrication, and more specifically, the actinide (III) precipitation in molten salt LiCl-CaCl2 (30-70%mol) salt at 700°C using wet argon sparging. First, this conversion method is described for neodymium (III) and cerium (III) coconversion. The conversion rates are around 99.9%, and the obtained powders contain mixed oxychloride Ce1-xNdxOCl as main component, with a small amount of mixed oxide Ce1-xNdxO2-0.5x for the high cerium ratio. A second oxychloride CeIV(Nd0.7Ce0.3)IIIO3Cl is obtained in specific conditions and in very low quantity. The structure of this oxychloride is described in this study. The partially oxidative property of the conversion method induces the oxidation of a part of cerium (III) to oxidation state (IV). In the case of uranium (III) conversion by wet argon sparging, all the uranium is oxidized and give the oxide UO2 as single compound. The conversion rate for this element is over 99.9% in the molten chloride, but significant amount of uranium is lost by volatilization during the conversion. Finally, the U(III) and Pu(III) coconversion study shows the highest precipitation sensitivity of uranium (III) in comparison with plutonium (III), responsible of a successive conversion of the two elements, giving an oxide mixture of UO2 et PuO2 with quantitative conversion rate. Surprisingly, the conversion of Pu(III) in the same conditions led to a mixture of PuO2 and PuOCl, characteristic of a partial oxidation from Pu (III) to Pu (IV), in contrast with coconversion of U(III)-Pu(III)
Boissière, Jean-Marie. "Synthèse par extrusion réactive de polycondensats de polyamides". Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL062N.
The aim of this work is to study the feasibility of addition of nylon salt to polyamide (PA) by a reactive extrusion process. As example, the addition of 6T salt, which includes aromatic monomers, to PA 66 is performed in order to synthesize PA 66/6T. This latter replies to demand of high resistance temperature polymer. Consequently, the progress rate of the reaction and the rate of 6T motifs insertion have to be maximized.This work includes the synthesis and the analysis of 6T salt, PA 6T and PA 66/6T. 6T salt synthesis is performed since it is not commercialised. PA 6T is synthesized in order to identify aromatic hydrogen in PA 66/6T molecule. About this latter, it is necessary to adjust and to study the extrusion process. So, the influences of few process parameters are studied as, for example, pressure level on vent gas of the extruder.With the best process parameters, the progress rate is 93 mol% and the rate of 6T motifs insertion is 15,3 mol%. Yet, PA 66/6T presents a significant excess of acidic end group
Marote, Pedro. "Étude du rôle des sels précurseurs de métaux di et tétravalents et des ions alcalins, dans la synthèse d'oxydes en milieu nitrate et nitrite fondu". Lyon 1, 2001. http://www.theses.fr/2001LYO10161.
Boutin, Véronique. "Productibilité des centrales solaires à tour (filière sel fondu)". Nice, 1986. http://www.theses.fr/1986NICE4061.
Ganchegui, Benjamin. "Transformations palladocatalysées d'alcools et utilisation d'un sel fondu comme solvant". Reims, 2004. http://www.theses.fr/2004REIMS002.
The first part of this work deals with the Heck reaction of allylic alcohols in usual organic solvents. The various strategies employed to perform this reaction an enantioselective way resulted in relative defeat. Nevertheless, the use of this coupling as final step of a tandem reaction afforded the corresponding biarylketones with satisfying yields and selectivities. The second part of this work deals with the use of molten n-Bu(4)NBr as solvent for palladium catalyzed reactions. Efficient conditions were found for the Heck coupling of allylic alcohols, the dehydrogenation of benzylic alcohols and the isomerization of allylic alcohols. Moreover, in the three cases, the ionic catalytic layer was recycled without significant loss of activity. Finally, this work gives evidences for the formation of Pd nanoparticles in the course of these reactions carried out in the molten salt as solvent
VALADE, MYRIAM. "Etude de l'incineration des transuraniens en reacteur a sel fondu". Université Louis Pasteur (Strasbourg) (1971-2008), 2000. http://www.theses.fr/2000STR13196.
Oney, Gozde. "L'ordre des métaux de transition dans la phase spinelle LiNi0,5-xMn1,5+xO4 à haut potentiel : caractérisation multi-échelle jusqu'au nanomètre". Electronic Thesis or Diss., Bordeaux, 2023. http://www.theses.fr/2023BORD0457.
The performance of spinel LiNi0.5-xMn1.5+xO4 (LNMO) as positive electrode material in Li-ion batteries strongly depend on its synthesis conditions, Ni/Mn stoichiometry, and the degree of ordering of Ni and Mn. LNMO crystal structure can be described in Fd-3m or P4332 space groups, depending on the extent of this ordering. Understanding the impact of these structural properties on electrochemical performance is challenging due to the interdependent nature of each parameter and the limited spatial resolution of the common characterization techniques. In this study, we demonstrate the synthesis of impurity-free disordered (Fd-3m) platelets of LNMO presenting multiple surface orientations via molten salt synthesis. Thanks to the thin platelet morphology (thickness ~180 nm) achieved, we employed a 4D-STEM electron microscopy tool, newly growing in the battery field, to investigate the transition metal ordering on individual LNMO particles with nanometric spatial resolution for the first time. The unique ability to tune the primary particle morphology, spinel composition and control secondary phase generation enabled us to demonstrate that heterogeneity in the transition metal arrangement on the globally ordered (P4332) LNMO is beneficial for electrochemical performance. Combining electron microscopy analysis with average structural properties obtained through X-ray and neutron diffraction, and with information on the local environments obtained using Raman and 7Li NMR spectroscopies, we dissect the “synthesis-composition-properties” relation for LiNi0.5-xMn1.5+xO4 samples prepared through various annealing steps. This enables the obtention of high-performing (dis)ordered spinel LNMOs with diverse compositions, highlighting how the electrochemical properties can be tailored through structural design
Libri sul tema "Synthèse en sel fondu":
Lignes directrices portant sur la chimiothérapie préventive contre le téniasis à Tænia solium. Pan American Health Organization, 2021. http://dx.doi.org/10.37774/9789275223727.
Rapporti di organizzazioni sul tema "Synthèse en sel fondu":
Dudoit, Alain. Les espaces européens communs de données : une initiative structurante nécessaire et adaptable au Canada. CIRANO, ottobre 2023. http://dx.doi.org/10.54932/ryht5065.