Relevant bibliographies by topics / Nanostructures et nanocomposites

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Nanostructures et nanocomposites'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Nanostructures et nanocomposites"

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Doan, Mai Quan, Nguyen Ha Anh, Hoang Van Tuan, et al. "Improving SERS Sensing Efficiency and Catalytic Reduction Activity in Multifunctional Ternary Ag-TiO2-GO Nanostructures: Roles of Electron Transfer Process on Performance Enhancement." Adsorption Science & Technology 2021 (October 1, 2021): 1–13. http://dx.doi.org/10.1155/2021/1169599.

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Multifunctional nanocomposites have received great attention for years; electron transfer (ET) is considered as an explanatory mechanism for enhancement of performance of these nanostructures. The existence of this ET process has been proved in many studies using either experimental or computational approaches. In this study, a ternary nanocomposite system of Ag/TiO2/GO was prepared to evaluate the performance enhancement in two experimental models: a physical model (i.e., surface-enhanced Raman scattering (SERS) sensor) and a chemical one (i.e., catalytic reduction reaction). The metal/semico
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Hammud, Hassan H., Ranjith Kumar Karnati, Nusaybah Alotaibi, Syed Ghazanfar Hussain, and Thirumurugan Prakasam. "Cobalt–Carbon Nanoparticles with Silica Support for Uptake of Cationic and Anionic Dyes from Polluted Water." Molecules 26, no. 24 (2021): 7489. http://dx.doi.org/10.3390/molecules26247489.

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Silica-supported hierarchical graphitic carbon sheltering cobalt nanoparticles Co-HGC@SiO2 (1) were prepared by pyrolysis at 850 °C of [Co(phen)(H2O)4]SO4·2H2O complex with silica in the presence of pyrene as a carbon source under nitrogen atmosphere. Nanocomposites (2) and (3) were obtained by acid treatment of (1) with HCl and HF acid, respectively. The nanocomposites showed rough hierarchical carbon microstructures over silica support decorated with irregular cobalt nanospheres and nanorods 50 to 200 nm in diameter. The nanoparticles consist of graphitic shells and cobalt cores. SEM, EDAX a
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Granitzer, Petra, Klemens Rumpf, Roberto Gonzalez-Rodriguez, and Jeffery Coffer. "Metal Filled Nanostructured Silicon a Platform to Interlink Magnetism and Optics." ECS Meeting Abstracts MA2023-02, no. 21 (2023): 1285. http://dx.doi.org/10.1149/ma2023-02211285mtgabs.

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This presentation deals with the utilization of nanostructured silicon (porous silicon and silicon nanotubes) for deposition of various metals, especially magnetic ones, within the pores/tubes. The novel magnetic properties of the semiconducting/magnetic composites which arise due to the nanoscopic size of the used materials are investigated with respect to optical and magnetic on-chip applications. Porous silicon is fabricated by anodization of a silicon wafer in an aqueous hydrofluoric solution. The morphology of the porous structures depends on the doping density of the used wafer and on th
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El-Zoka, Ayman A. "(Invited) Making Nanostructured Composites Via Inner-Pore Electrodeposition into Nanoporous Metals." ECS Meeting Abstracts MA2023-02, no. 21 (2023): 1281. http://dx.doi.org/10.1149/ma2023-02211281mtgabs.

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The selective removal of Ag from a solid solution of Ag-Au or Ag-Au-Pt yields a 3D bicontinuous, open-pore, nanoporous gold substrate (NPG), that is rich in the more noble metal(s)1 (Au and/or Pt). NPG has been successfully developed by the intelligent use of the conventionally-undesired dealloying corrosion. The excellent properties of NPG are attributed to the surface area-to-volume ratio, and high curvature of nanoligament surfaces2,3 . While a lot of recent research has been focusing on the structure/property relationships of NPG as a functional material in its own right4,5, the further us
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Askirka, Valiantsin. "Ratiometric optical laser power sensor based on polymer luminescent nanocomposite." Photonics Letters of Poland 17, no. 1 (2025): 29–31. https://doi.org/10.4302/plp.v17i1.1323.

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The fabrication of nanocomposite photonic materials suggests their use in a wide variety of applications. An essential requirement for such materials is their photostability and high photobleaching resistance. Both lanthanides and quantum dots are good candidates for embedding in the polymer matrix to obtain highly luminescent nanocomposites. This paper presents the concept for the ratiometric optical pulsed laser power sensor based on terbium and red-emitting semiconductor quantum dots co-doped polymer luminescent nanocomposite for application in inexpensive laser monitoring systems. Full Tex
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Rusu, Mihai M., Adriana Vulpoi, Isabelle Maurin, et al. "Thermal Evolution of C–Fe–Bi Nanocomposite System: From Nanoparticle Formation to Heterogeneous Graphitization Stage." Microscopy and Microanalysis 28, no. 2 (2022): 317–29. http://dx.doi.org/10.1017/s1431927622000241.

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Carbon xerogel nanocomposites with integrated Bi and Fe particles (C–Bi–Fe) represent an interesting model of carbon nanostructures decorated with multifunctional nanoparticles (NPs) with applicability for electrochemical sensors and catalysts. The present study addresses the fundamental aspects of the catalyzed growth of nano-graphites in C–Bi–Fe systems, relevant in charge transport and thermo-chemical processes. The thermal evolution of a C–Bi–Fe xerogel is investigated using different pyrolysis treatments. At lower temperatures (~750°C), hybrid bismuth iron oxide (BFO) NPs are frequently o
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Gan’shina, Elena A., Vladimir V. Garshin, Nikita S. Builov, Nikolay N. Zubar, Alexandr V. Sitnikov, and Evelina P. Domashevskaya. "Investigation of the Magnetic Properties of Amorphous Multilayer Nanostructures [(CoFeB)60C40/SiO2]200 and [(CoFeB)34(SiO2)66/C]46 by the Transversal Kerr Effect." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 22, no. 4 (2020): 438–45. http://dx.doi.org/10.17308/kcmf.2020.22/3114.

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Magnetic properties in amorphous multilayer nanostructures [(CoFeB)60C40/SiO2]200 and [(CoFeB)34(SiO2)66/C]46 with different content of the CoFeB magnetic alloy in metal-composite layers and inverse location of non-metallic phases C and SiO2 in composite layers or in interlayers, were investigated by magneto-optical methods in the transversal Kerr effect (TKE) geometry.Using the spectral and field dependences of the transversal Kerr effect TKE, it has been established that in the samples of both magnetic multilayer nanostructures (MLNS) the magneto-optical response and magnetic order are deter
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Ngene, Peter. "Interface Induced Fast Ion Conduction in Complex Hydride/Oxide Nanocomposites: Interplay between Hydride and Oxide Properties." ECS Meeting Abstracts MA2023-02, no. 5 (2023): 886. http://dx.doi.org/10.1149/ma2023-025886mtgabs.

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Solid-state electrolytes are crucial for next generation batteries with high energy density, long lasting and improved safety. The compatibility of most solid electrolytes with metallic anodes such as Li and Na metals, and cathodes such as sulfur, makes them suitable for high-capacity batteries (e.g., Li-S). They also address the safety concerns of current batteries by eliminating the flammable organic solvents in liquid electrolytes and by preventing/limiting dendrite formation. The lithium and sodium containing complex metal hydrides (e.g., LiBH4, NaBH4, LiCB11H12) have recently gained atten
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Yang, Bao Juan, Rui Xia, Su Bin Jiang, and Mei Zhen Gao. "SnSe/Cu<sub>2</sub>SnSe<sub>3</sub> Heterojunction Structure with High Initial Coulombic Efficiency for Lithium-Ion Battery Anodes." Key Engineering Materials 905 (January 4, 2022): 135–41. http://dx.doi.org/10.4028/www.scientific.net/kem.905.135.

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Due to high theoretical specific capacity and abundant reserves, tin selenide-based materials have received tremendous attentions in the fields of lithium-ion batteries. Nevertheless, the huge volume changes during insertion/de-intercalation processes deteriorate the Coulombic Efficiency greatly. In order to solve it, the researchers have made great efforts by means of controlling nanoparticles granularity, carbon coating, ion doping et al. In this study, SnSe/Cu2SnSe3 heterojunction nanocomposites were synthesized by solvo-thermal method. The resulting SnSe/Cu2SnSe3 is a three-dimensional flo
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Urper, Osman, Prabin Kharel, Nivedhitha Jothinarayanan, et al. "Eco-Friendly TiO2 and ZnO Biocar Nanocomposites: Transforming Water Decontamination and Bacteria Inactivation." ECS Meeting Abstracts MA2023-02, no. 47 (2023): 2292. http://dx.doi.org/10.1149/ma2023-02472292mtgabs.

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Water pollution ranging from harmful chemical substances to pathogenic bacteria is a growing problem from industry to society as a whole[1-2].There is a need to find new, cost-effective sustainable materials with high efficacy to clean up water and to protect the environment. Biocarbon (BC), a material with high specific surface area and large porosity, has some potential for removing water pollutants, but it also has many limitations. However, biocarbon-based composites can be tailored and may have a greater potential for removing contaminants in water. ZnO biochar and TiO2 biochar nanocompos
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Dissertations / Theses on the topic "Nanostructures et nanocomposites"

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Belchi, Raphaëlle. "Architectures à base de nanostructures de carbone et TiO₂pour le photovoltaïque." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS329/document.

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Le photovoltaïque est une énergie renouvelable pouvant aider à lutter contre le réchauffement climatique et l’épuisement des ressources fossiles utilisées pour la production d’énergie. La filière émergente à base de matériaux pérovskites (photovoltaïque de 3ème génération) est très prometteuse car elle utilise des matériaux abondants et faciles à mettre en œuvre (technologie bas-coût) et a montré de plus des rendements record compétitifs en peu de temps. Il reste cependant des verrous technologiques à lever afin de pouvoir développer cette technologie à grande échelle. L’un deux consiste à amé
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Do, Isabelle. "Nanocomposites nanotubes de carbone/élastomère : Propriétés rhéologiques et électriques." Pau, 2007. http://www.theses.fr/2007PAUU3005.

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L'incorporation de nanotubes de carbone (NTC) dans une matrice polymère est difficile du fait de leur forte tendance à s'agglomérer, ce qui réduit leur intérêt en tant que renforts. Afin de pallier ce problème, beaucoup de solutions reposent sur la modification de l'interface NTC/polymère. Le but de notre étude est d'établir la relation existant entre la nature de l'interface NTC/polymère et l'organisation spatiale des NTC d'une part, les propriétés rhéologiques et électriques du nanocomposite NTC/polyacrylate de méthyle (PMA) obtenu, d'autre part. L'interface NTC/matrice est contrôlée via l'u
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Mayne-L'Hermite, Martine. "Elaboration, microstructure et comportement au fluage de nanocomposites Si3N4/SiC." Limoges, 1997. http://www.theses.fr/1997LIMO0021.

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L'objectif de ce travail a ete d'elaborer des nanocomposites si#3n#4/sic presentant une aptitude au formage a chaud. Pour cela, une seconde phase nanometrique sicn(o) ou sic(o) a ete introduite au sein de la matrice si#3n#4 de maniere a developper des microstructures a grains fins et equiaxes favorables a la deformation plastique a haute temperature. Les poudres nanometriques sicn(o) synthetisees par pyrolyse laser possedent des caracteristiques communes, a savoir la presence d'agregats durs au sein desquels les particules sont liees par des liaisons fortes. Ces poudres se decomposent sous atm
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Hoang, Minh Tuan. "Modélisation et simulation multi échelle des effets de taille et des couplages électromécaniques dans les nanostructures." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1074/document.

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Les nanostructures, et en particulier les nanofils semi-conducteurs, ont suscité ces dernières années un très grand intérêt pour de nombreuses applications comme les systèmes de récupération d'énergie ou les capteurs de très haute précision. Dans de telles structures des expérimentations et des calculs théoriques ab-initio ont mis en évidence des effets de taille, pouvant modifier significativement les propriétés électromécaniques pour des diamètres de fils en dessous de 10 nm. L'objectif de ce travail de thèse est de proposer des modélisations multi échelle des nanostructures électromécanique
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Habis, Christelle. "Development of ZnO-FTO nanocomposites for the use in transparent conductive thin films." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0192.

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Cette thèse s'inscrit dans le cadre de développement de couches d'oxyde transparentes avec des techniques à faible cout, basées sur des matériaux non polluants permettant de fonctionnaliser des dispositifs opérationnels efficace, donc à haut rendement pour la production d'énergies renouvelables. Notre choix s'est porté plus particulièrement sur l'étude des couches TCO à base d'étain et dopés au fluor, F :SnO2, dénommées FTO pour « Fluor Tin Oxydes ». Les FTO sont des oxydes à large bande interdite, à l'instar du ZnO, TiO2, Al2O3, purs ou dopés. Ces couches possèdent en principe un facteur de d
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Zaitsev, Andrii. "Exploration de la voie plasma pour la synthèse de nanostructures et de nanocomposites à base de polyaniline." Thesis, Le Mans, 2015. http://www.theses.fr/2015LEMA1014/document.

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Les nanostructures de polymères suscitent un grand intérêt grâce à leurs propriétés uniques comme le facteur de forme important. Cette propriété est essentielle pour l’utilisation dans des domaines où les interactions de surface sont mises en jeu. Un exemple d’une telle application est la détection de gaz. La polyaniline (PANi) s’est montrée prometteuse pour l’utilisation dans les capteurs d’ammoniac. La synthèse conventionnelle (chimique ou électrochimique) de nanofibres de PANi a été largement décrite dans la littérature mais cette voie possède de nombreux inconvénients. Parmi eux, figurent
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Dubois, Jean-Baptiste. "Conducteurs nanocomposites métalliques élaborés par déformation plastique sévère : formation et stabilité thermo-mécanique des nanostructures, propriétés induites." Poitiers, 2010. http://theses.univ-poitiers.fr/26782/2010-Dubois-Jean-Baptiste-These.pdf.

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Ces travaux de thèse concernent l'étude de matériaux nanocomposites métalliques à base de cuivre/niobium (Cu/Nb), combinant conductivité électrique et limite d'élasticité élevées et développés pour la fabrication de bobines résistives de champs magnétiques pulsés intenses. Les conducteurs nanocomposites Cu/Nb continus sont élaborés par une méthode de déformation plastique sévère (DPS), basée sur des cycles d'extrusions, d'étirages et d'empilements successifs, conduisant à la formation d'un matériau nanostructuré multi-échelle. Afin d'optimiser le procédé de fabrication, l'effet des traitements
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Aldroe, Hanaya. "Analyse des propriétés physiques et mécaniques des nanocomposites polyamide 12 / cloisite® 30B en lien avec leurs nanostructures." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4034/document.

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Les nanocomposites suscitent un intérêt croissant depuis leur développement dans les années 90 par Toyota. Par conséquent, l'amélioration des propriétés de ce type de matériaux est un enjeu fort tant d'un point de vue fondamental qu'industriel. Cette amélioration peut passer par un choix pertinent des charges renforçantes ajoutées à la matrice notamment en ce qui concerne le type, la géométrie, la proportion et le traitement de ces charges. L’optimisation des paramètres d’élaboration du mélange y joue aussi un rôle important. L’objectif de ce travail est de contribuer à l’identification et à l
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Laurent, Christophe. "Contribution à l'étude de nanocomposites à matrice céramique. Alumine-alliages fer-chrome et alumine-zircone-fer et alliages fer-chrome." Toulouse 3, 1994. http://www.theses.fr/1994TOU30017.

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Les nanocomposites alumine-metal, dans lesquels les particules metalliques nanometriques sont dispersees dans la matrice ceramique possedent des proprietes mecaniques superieures a celles de l'alumine pure ou renforcee par des particules metalliques micrometriques. L'elaboration de poudres nanocomposites alumine-fer, alumine-chrome et alumine-alliages fer-chrome a ete realisee par calcination puis reduction selective sous hydrogene de solutions solides d'oxydes obtenues par decomposition de precurseurs oxaliques mixtes. Une etude de l'influence des temperatures de calcination et de reduction s
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Sauvage, Xavier. "Transformations de phases induites par déformation plastique intense. Cas des aciers perlitiques tréfilés et des nanocomposites filamentaires Cu/Nb." Rouen, 2001. http://www.theses.fr/2001ROUES032.

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Les aciers perlitiques tréfilés et les nanocomposites filamentaires Cu/Nb sont élaborés par tréfilage à froid. La déformation plastique conduit à un allongement des grains le long de l'axe du fil et à une réduction importante de leurs dimensions dans la section transverse. Ainsi, les lamelles de cémentite des aciers perlitiques ne font plus que quelques nanomètres d'épaisseur et les fibres de niobium des composites Cu/Nb ont un diamètre moyen compris entre 10 et 60 nm. Ces nanostructures ont été caractérisées en microscopie ionique, sonde atomique, MET et METHR. Dans les aciers perlitiques, la
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Books on the topic "Nanostructures et nanocomposites"

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author, Thomas Sabu, MirMahaleh Moein MehdiPour author, Rafiei Saeedeh author, Maghsoodlou Shima author, and Afzali Arezo author, eds. Foundations of nanotechnology. Apple Academic Press Inc., 2014.

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Joshi, Mangala. Nanotechnology in Textiles: Advances and Developments in Polymer Nanocomposites. Jenny Stanford Publishing, 2020.

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Joshi, Mangala. Nanotechnology in Textiles: Advances and Developments in Polymer Nanocomposites. Jenny Stanford Publishing, 2020.

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Joshi, Mangala. Nanotechnology in Textiles: Advances and Developments in Polymer Nanocomposites. Jenny Stanford Publishing, 2020.

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Joshi, Mangala. Nanotechnology in Textiles: Advances and Developments in Polymer Nanocomposites. Jenny Stanford Publishing, 2020.

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Nanotechnology in Textiles: Advances and Developments in Polymer Nanocomposites. Jenny Stanford Publishing, 2020.

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Book chapters on the topic "Nanostructures et nanocomposites"

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Hashem Abdelmohsen, Ahmed, Sherif A. El-Khodary, and Nahla Ismail. "Theories, Hypothesis and Rules for Morphology Transition Engineering of 1D, 2D and 3D Nanomaterials." In Nanotechnology and Nanomaterials. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112135.

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Most of the chemical and physical properties of nanomaterials vary remarkably according to their size, shape, and structure. Thus morphology is a crucial parameter that controls the properties and functionality of materials. On the basis of Abdelmohsen et al.’s theories and hypothesis, which are theory for morphology transition engineering (ATMTE), theory for morphology engineering of solid compounds (ATMESC), and hypothesis for engineering of micro- and nanostructures (AHEMNS), novel approach was modified for fabricating one-, two-, and three-dimensional hybrid nanomaterials, such as hybrid Z
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Conference papers on the topic "Nanostructures et nanocomposites"

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Aboul-Gheit, Ahmed K., Sawsan A. Mahmoud, and Yasser M. Moustafa. "Nanostructured Ti-Fe Thin Layered Photocatalyst via Sol-Gel Technique." In ASME 2008 2nd Multifunctional Nanocomposites and Nanomaterials International Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/mn2008-47033.

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The finding of of Zhu et al. [1] that iron-ion-doped TiO2 powders by hydrothermal hydrolysis and crystallization exhibited that the amount of doped iron ion significantly affected the phoyocatalytic degradation activity of XRG yellow dye and Fe optimum content could enhance photocatalytic activity under UV and visible light irradiation has encourage us to carry out this work. Hence, we prepared and examined the photocatalytic activities of a series of TiO2/Fe2O3 mixtures of thin layers of TiO2 and Fe2O3 using the sol-gel method and found that the TiO2(5)/Fe2O3(1) catalyst the most active for a
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Vodopyanov, Alexander, Andrey Samokhin, Nikolay Aleksev, Mikhail Sinayskiy, Andrey Sorokin, and Sergey Sintsov. "TUNGSTEN CARBIDE NANOPOWDER SYNTHESIS UNDER THE EXPOSURE OF 24 GHZ GYROTRON RADIATION ON THE NANOCOMPOSITE OF THE W-C SYSTEM OBTAINED IN A THERMAL PLASMA." In Ampere 2019. Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9836.

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Nanoscale tungsten carbide WC powders are of practical interest for the creation of nanostructured hard alloys with enhanced physical and mechanical characteristics, wear-resistant nanostructured coatings, electrocatalysts in fuel cells, metal melt modifiers [1]. An efficient method for producing tungsten carbide nanopowder is a plasma-chemical synthesis of a multi-component powder nanocomposite system W-C in combination with its subsequent heat treatment [2]. Experimental studies have shown the possibility of producing tungsten carbide WC nanopowder by this method. But the transformation of t
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