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Academic literature on the topic 'Composé d'insertion inorganique'
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Dissertations / Theses on the topic "Composé d'insertion inorganique"
Antoine, Claire. "Composés d'insertion inorganiques en films de Langmuir-Blodgett." Paris 11, 1989. http://www.theses.fr/1989PA112328.
Full textTlemsani, Shanez. "Matériaux hybrides organiques-inorganiques lamellaires à base de phosphate de zirconium et de complexes organiques de terres rares : synthèse, caractérisation et étude des propriétés optiques." Clermont-Ferrand 2, 2003. http://www.theses.fr/2003CLF21434.
Full textPruvost, Sébastien. "Sur l'intercalation dans le graphite des alliages lithium-calcium." Nancy 1, 2003. http://www.theses.fr/2003NAN10153.
Full textThe study of the graphite-lithium-calcium system leads to the formation of three novel intercalation compounds called α, ß and γ. The synthesis of these ternary phases is carried out at 350°C by immersion of a pyrographite platelet in a molten Li-Ca alloy whose composition is judiciously chosen. The presence of lithium in these compounds requires nuclear microprobe analysis in order to determine the elemental composition. The ß compound possesses a high metal quantity (C/Metal ratio near 1) especially in lithium. The γ phase contains a very small lithium amount and its chemical formula is close to CaC6. A structural study allowed to determine the a phase lattice. Along the c-axis, the intercalated sheets are five-layered according to a Li-Ca-Li-Ca-Li sequence that is close to the CaLi2 structure. 7Li NMR confirms these results. The ß compound contains thicker intercalated sheets that become seven-layered. The in-plane lattice of the γ phase corresponds to that of CaC6
Bénard, Sophie. "Synthèse et étude de matériaux organique-inorganiques bidimensionnels associant ferromagnétisme, propriétés optiques non linéaires et photochromisme." Paris 11, 2000. http://www.theses.fr/2000PA112364.
Full textThis work deals with the synthesis and the study of materials combining magnetic properties with optical properties (nonlinear optic [NLO] or photochromism). In the first chapter, we summarize the basic principles governing the optical activity of molecules, and give a non-exhaustive survey of the investigations in the field of NLO and photochromism. The lamellar magnetic systems utilized are then described. A last section is dedicated to the interactions that might occur between physical properties existing in this material. The second chapter reports the attempts carried out to achieve combination in the same material of NLO and magnetic properties. Various kinds of hyperpolarizable chromophores, derived from tetraphenylphosphonium cation or silbazolium type, have been synthesized and used for the construction of 2D molecular-based magnets C[MᴵᴵCr(C₂O₄)₃, (Mᴵᴵ = Mn, Fe, CO, Ni, Cu). The large number of compounds obtained has been characterized by IR, UV visible spectroscopy, X-ray powder diffraction. Their magnetic and NLO properties have been measured, and two structures have been solved. The results are discussed in an attempt of establishing "structure-NLO property" relationships. Finally, various attempts at characterizing a possible interaction between magnetic and NLO properties are discussed. The third chapter reports the synthesis and the study of all compounds exhibiting photochromic properties, and their association with magnetic properties. The first section deals with the photochromic species: spiropyran and spirooxazine cations. They exhibit photochromism both in solution and in the crystalline sate. This specificity has never been observed in this family of compounds. Section II presents the synthesis and the study of molecular-based magnets containing these spiropyran cations. Evidence of a reciprocal influence between both properties is presented. In section III, intercalation of the same photochromic cations into MPS₃layered phases is reported
Feng, Yongjun. "Formation and properties of second-stage layered double hydroxide materials." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2006. http://tel.archives-ouvertes.fr/tel-00717376.
Full textFahel, Jean. "Intercalation de dicarboxylates et d’acides aminés dans des hydroxydes doubles lamellaires : relation composition-structure." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0139/document.
Full textThe intercalation of organic molecules within the interlayer domain of Layered Double Hydroxides leads to the formation of organo-mineral hybrids with original properties. The industrial applications of these materials requires on one hand to develop a simple and efficient method of synthesis to ensure a high purity of these hybrids, and on the other hand to establish their structure-composition relationships (cationic layer, anion, and interlayer water). These are the objectives that motivated the work presented in this manuscript. The strategy of synthesis adopted in this work, allowed us to obtain higher rates of intercalation than those obtained by other methods (coprecipitation, reconstruction, etc.), for simple organic molecules (dicarboxylic acids) as well as for more complex molecules (amino acids and oligopeptides). The amino acids are classified into three groups according to their rate of intercalation, which is influenced by the nature of their side chain. Additionally, the interlayer distance and stacking faults are influenced by the length of the molecular chain and by the anion orientation which in turn depends on the density charge of the layer. Interestingly, the effect of the density charge on the interlayer distance for the hybrids is the opposite of what is observed for the inorganic anions. The hydration state of the system plays also a key role in the reorientation of the interlayer anions and on the material structuring. In particular, the dehydration of the material promotes lying orientations of the interlayer anions in the order to maximize the anion-layer interactions. This enhances the stability of the material and reduces the number of stacking faults. We have also showed that the presence of amino groups strengthens the anion-layer interactions and the reorientation of the anions occurs at higher humidity compared to dicarboxylate anions. Furthermore, we have verified the preferential intercalation of anion species with high charge densities. Therefore, the intercalated amino acids are found totally deprotonated in the interlayer domain regardless of the layer charge density. Finally, the reactivity of the hybrids is probed through two examples, one dealing with the thermal decomposition of the intercalated anions in confined medium, and the other dealing with their interaction with atmospheric CO2