Download or read book Fonctionnalisation de Nanotubes de Carbone Et Applications written by Cécilia Ménard-Moyon and published by Omniscriptum. This book was released on 2010-07 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Au cours de ce travail de th se, les nanotubes de carbone ont t fonctionnalis s pour d velopper des syst mes de protection de la vision via la combinaison avec d'autres mat riaux optiquement non lin aires. Les propri t s lectroniques des nanotubes ont t modul es pour concevoir un nanointerrupteur contr l par la lumi re. Les diff rentes strat gies pour perturber et restaurer la conductivit des nanotubes reposent sur des r actions de cycloaddition photor versibles, l'adsorption de compos s aromatiques contr l e par la lumi re et sur des transferts de charge photoinduits. De nouvelles m thodes de fonctionnalisation des nanotubes, notamment des r actions de cycloaddition, ont t d velopp es. Des r actions de Diels-Alder combinant l'utilisation des hautes pressions et l'activation de la surface des nanotubes par complexation avec du chrome tricarbonyle ont t mises au point. Nous avons galement d velopp une m thode douce et efficace bas e sur la cycloaddition 1,3-dipolaire d'ylures d'azom thine pour la fonctionnalisation s lective des nanotubes semi-conducteurs. Ce r sultat est prometteur pour la s paration des nanotubes m talliques et semi-conducteurs.

Download or read book Fonctionnalisation Covalente Des Nanotubes de Carbone written by Janie Cabana and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Carbon Nanotubes written by M. Meyyappan and published by CRC Press. This book was released on 2004-07-28 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes, with their extraordinary mechanical and unique electronic properties, have garnered much attention in the past five years. With a broad range of potential applications including nanoelectronics, composites, chemical sensors, biosensors, microscopy, nanoelectromechanical systems, and many more, the scientific community is more moti

Download or read book Syntheses and Applications of Carbon Nanotubes and Their Composites written by Satoru Suzuki and published by BoD – Books on Demand. This book was released on 2013-05-09 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes are rolled up graphene sheets with a quasi-one-dimensional structure of nanometer-scale diameter. In these last twenty years, carbon nanotubes have attracted much attention from physicists, chemists, material scientists, and electronic device engineers, because of their excellent structural, electronic, optical, chemical and mechanical properties. More recently, demand for innovative industrial applications of carbon nanotubes is increasing. This book covers recent research topics regarding syntheses techniques of carbon nanotubes and nanotube-based composites, and their applications. The chapters in this book will be helpful to many students, engineers and researchers working in the field of carbon nanotubes.

Download or read book Fonctionnalisation de nanotubes de carbone pour leur incorporation dans des matrices m talliques written by Elsa Garrido and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les nanotubes de carbone possèdent d'excellentes propriétés mécaniques, thermiques, électriques..., ce qui en fait un candidat de choix pour le développement de nouveaux matériaux pour de nombreuses applications. Cependant, leur mauvaise dispersion dans les solvants et les matrices reste encore aujourd'hui le principal problème pour l'obtention de matériaux composites homogènes. Cette thèse présente une nouvelle voie de fonctionnalisation des nanotubes de carbone réalisée en milieux fluides supercritiques. La fonctionnalisation organique proposée via une oxydation de surface des NTC présente de nombreux avantages par rapport aux techniques conventionnelles. La fonctionnalisation inorganique des NTC par les nanoparticules de palladium et d'argent a servi de modèle pour mieux appréhender le dépôt de nanoparticules de cuivre et déboucher ainsi à la réalisation de matériaux composites cuivre/NTC.

Download or read book Nanotubes de carbone written by Cécilia Ménard-Moyon and published by . This book was released on 2005 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse concerne la fonctionnalisation des nanotubes de carbone pour des applications en électronique et en limitation optique. Nous avons fonctionnalisé les nanotubes pour améliorer leurs performances afin de développer des systèmes de protection efficaces de la vision. Une des approches a reposé sur la combinaison avec d'autres matériaux optiquement non linéaires. Les nanotubes possèdent également des propriétés électroniques que nous avons essayé de moduler pour la conception d'un nanointerrupteur contrôlé par la lumière. Les différentes stratégies pour perturber et restaurer la conductivité des nanotubes s'appuient sur des réactions de cycloaddition photoréversibles, sur l'adsorption de composés aromatiques contrôlée par la lumière et sur des transferts de charge photoinduits. L'exploitation des propriétés des nanotubes nous a amenés à développer des méthodes de fonctionnalisation. Celles-ci reposent sur des réactions de cycloaddition avec la surface des nanotubes constitués d'atomes de carbone hybridés sp2. Nous avons mis au point une méthode pour induire des réactions de Diels-Alder combinant l'utilisation des hautes pressions et l'activation de la surface des nanotubes par complexation avec du chrome tricarbonyle. Nous avons également développé une méthode douce et efficace basée sur la cycloaddition 1,3-dipolaire d'ylures d'azométhine. Nous avons mis en évidence que la fonctionnalisation est sélective des nanotubes semi-conducteurs lorsque l'ylure porte un groupement polycyclique aromatique (pyrène, anthracène). Ce résultat est prometteur pour la séparation des nanotubes métalliques et semi-conducteurs.

Download or read book Synth se et fonctionnalisation de nanotubes de carbone multiparois written by Yannick Breton and published by . This book was released on 2002 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'engouement pour les nanotubes de carbone se justifie par leurs extraordinaires propriétés intrinsèques qui font d'eux d'excellents candidats pour de nombreuses applications impliquant des nanomatériaux. Cependant, nombre de questions restent en suspens à l'heure actuelle. La maîtrise des procédés de synthèse étant le premier challenge à relever. Une étude de la croissance de nanotubes sur des particules de palladium nous a permis de discuter des processus qui régissent cette croissance. L'existence d'une transition de phase des particules de palladium a été évoquee. L'hypothèse d'un arrêt de la croissance des nanotubes par une désactivation des particules provoquée par une diminution de leur diamètre est proposée. Cette diminution de diamètre résultant de la diffusion des atomes de palladium et/ou de l'arrachage de morceaux à la particule lors de la croissance des nanotubes. A la suite de quoi, nous proposons certaines améliorations aux modèles de croissance existants. Dans un deuxième temps, nous proposons l'emploi de plasmas froids pour la fonctionnalisation de nanotubes de carbone. Ainsi, il est possible de greffer en surface des nanotubes des taux non négligeables de groupes azotés, oxygénés ou de déposer des films minces dérivés du PMMA. Pour chaque atmosphère gazeuse, une étude par spectroscopie de photoélectrons X de l'influence des paramètres de la décharge sur la nature des groupes greffés nous a permis de préciser les paramètres adéquats pour une fonctionnalisation optimisée et contrôlée de la surface des nanotubes de carbone par plasmas Radio Fréquence. Dans certains cas, cette méthode s'avère être plus efficace, sélective et rapide que les voies classiques. Les effets d'oxydations chimiques ou de broyages mécaniques sur la microtexture et la chimie de surface des nanotubes ont aussi été étudiés. La réalisation de composites à matrice renforcée par des nanotubes fait partie des applications potentielles des nanotubes de carbone. L'étude des propriétés mécaniques de composites nanotubes/résine époxyde nous a permis d'obtenir quelques informations sur leur comportement en fonction du taux massique, de la chimie de surface, de la microtexture et du procédé de synthèse des nanotubes de carbone. Une modification de la microtexture et/ou de la chimie de surface des nanotubes permet directement ou indirectement d'augmenter la rigidité des composites. A cette amélioration des propriétés élastiques s'ajoute une meilleure tenue de l'interface. Cependant, cette amélioration de la tenue de l'interface ne se répercute pas sur les propriétés à rupture des composites, en règle générale, l'ajout de nanotubes à la résine fragilise le matériau.

Download or read book Carbon Nanotubes and Related Structures written by Dirk M. Guldi and published by John Wiley & Sons. This book was released on 2010-01-26 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by the most prominent experts and pioneers in the field, this ready reference combines fundamental research, recent breakthroughs and real-life applications in one well-organized treatise. As such, both newcomers and established researchers will find here a wide range of current methods for producing and characterizing carbon nanotubes using imaging as well as spectroscopic techniques. One major part of this thorough overview is devoted to the controlled chemical functionalization of carbon nanotubes, covering intriguing applications in photovoltaics, organic electronics and materials design. The latest research on novel carbon-derived structures, such as graphene, nanoonions and carbon pea pods, round off the book.

Download or read book Emerging Applications of Carbon Nanotubes in Drug and Gene Delivery written by Prashant Kesharwani and published by Woodhead Publishing. This book was released on 2022-11-05 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Applications of Carbon Nanotubes in Drug and Gene Delivery brings together principles behind the formation, characterization and development of carbon nanotubes (CNTs) with recent advances in drug and gene delivery applications. The book begins with an introduction to the unique properties of CNTs, as well as the various synthesis, purification and functionalization methods available. Later chapters cover drug and gene delivery using CNTs for therapeutic applications, comparing advantages and disadvantages of each. The book then goes on to discuss toxicity and safety challenges in using CNTs in biomedicine, with a forward-look at regulatory requirements and clinical translations. This book offers a detailed reference for materials scientists, biomedical engineers, pharmaceutical scientists and geneticists interested in CNTs and nanomedicine. - Provides focused coverage of nanotubes for use in drug and gene delivery applications, offering much-needed detail amongst broader nanomedicine texts - Details the properties, characterization, synthesis, functionalization and applications of CNTs in drug and gene delivery - Discusses toxicity, safety and regulatory aspects of CNTs, with a look towards the clinical translation of CNTs

Download or read book Graphene Carbon Nanotubes and Nanostructures written by James E. Morris and published by CRC Press. This book was released on 2017-07-28 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene, Carbon Nanotubes, and Nanostructures: Techniques and Applications offers a comprehensive review of groundbreaking research in nanofabrication technology and explores myriad applications that this technology has enabled. The book examines the historical evolution and emerging trends of nanofabrication and supplies an analytical understanding of some of the most important underlying nanofabrication technologies, with an emphasis on graphene, carbon nanotubes (CNTs), and nanowires. Featuring contributions by experts from academia and industry around the world, this book presents cutting-edge nanofabrication research in a wide range of areas. Topics include: CNT electrodynamics and signal propagation models Electronic structure calculations of a graphene–hexagonal boron nitride interface to aid the understanding of experimental devices based on these heterostructures How a laser field would modify the electronic structure and transport response of graphene, to generate bandgaps The fabrication of transparent CNT electrodes for organic light-emitting diodes Direct graphene growth on dielectric substrates, and potential applications in electronic and spintronic devices CNTs as a promising candidate for next-generation interconnect conductors CMOS–CNT integration approaches, including the promising localized heating CNT synthesis method CNTs in electrochemical and optical biosensors The synthesis of diamondoids by pulsed laser ablation plasmas generated in supercritical fluids, and possible applications The use of DNA nanostructures in lithography CMOS-compatible silicon nanowire biosensors The use of titanium oxide-B nanowires to detect explosive vapors The properties of protective layers on silver nanoparticles for ink-jet printing Nanostructured thin-film production using microreactors A one-stop reference for professionals, researchers, and graduate students working in nanofabrication, this book will also be useful for investors who want an overview of the current nanofabrication landscape.

Download or read book Emerging Applications of Carbon Nanotubes and Graphene written by Bhanu Pratap Singh and published by CRC Press. This book was released on 2023-02-27 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively reviews recent and emerging applications of carbon nanotubes and graphene materials in a wide range of sectors. Detailed applications include structural materials, ballistic materials, energy storage and conversion, batteries, supercapacitors, smart sensors, environmental protection, nanoelectronics, optoelectronic and photovoltaics, thermoelectric, and conducting wires. It further covers human and structural health monitoring, and thermal management applications. Key selling features: Exclusively takes an application-oriented approach to cover emerging areas in carbon nanotubes and graphene Covers fundamental and applied knowledge related to carbon nanomaterials Includes advanced applications like human and structural health monitoring, smart sensors, ballistic protection and so forth Discusses novel applications such as thermoelectrics along with environmental protection related application Explores aspects of energy storage, generation and conversion including batteries, supercapacitors, and photovoltaics This book is aimed at graduate students and researchers in electrical, nanomaterials, chemistry, and other related areas.

Download or read book Fonctionnalisation de nanotubes de carbone avec des peptides bioactifs written by Claire Gaillard and published by . This book was released on 2010 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ces dernières années, les nanotubes de carbone fonctionnalisés sont apparus comme un nouveau matériau prometteur pour de nombreuses applications biomédicales et biotechnologiques. Les études toxicologiques et sur leur biodistribution ont montré des effets toxiques réduits sur les cellules, les tissus et les organes comparés aux nanotubes non fonctionnalisés du fait de leur meilleure solubilité.La fonctionnalisation des nanotubes avec des peptides peut être envisagée pour de nombreuses applications comme le développement des outils de vectorisation de médicaments, comme agent ciblant les cellules tumorales, ou comme nouveaux substrats pour la croissance cellulaire. Durant ma thèse, j’ai développé une stratégie pour la conjugaison de nanotubes de carbone avec des peptides bioactifs comme substrats pour les neurones, ou pour cibler les cellules B autoréactives impliquées dans le lupus érythémateux disséminé. Dans le premier cas, la cytotoxicité et l’impact sur les fonctions des neurones ont été étudiés ainsi que l’immunogénicité des conjugués CNT-peptides. Pour les applications de ciblage cellulaire, nous avons utilisé différentes stratégies pour fonctionnaliser les nanotubes avec les peptides et étudié la reconnaissance spécifique de ces conjugués par des anticorps. Ces recherches représentent une avancée pour l’utilisation de nanotubes fonctionnalisés comme substrats cellulaires ou comme nouveau système de vectorisation de médicaments.

Download or read book Carbon Nanotubes written by Ann Rose Abraham and published by CRC Press. This book was released on 2022-10-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book discusses a selection of advanced topics on carbon nanotubes—their extraordinary properties, structure, design, fabrication, development, engineering, functionalization, carbon nanotube enabled nanocomposites, characterization, and, moreover, their utility in many applications. The volume highlights the amazing potential of advanced CNT composites in automotive, aeronautics, spacecrafts, transistors replacing Si electronics, energy, purification, hydrogen storage, tissue regeneration, electrochemical supercapacitors, sensing, biomedical applications, agriculture, energy, and technical applications. The book specifically discusses the applications of carbon nanotubes for a greener environment, as well as applications for biomedical uses, in drug delivery, and in display technology. It also explores the uses of CNTs in the energy and aerospace industries, such as for solar energy conversion, as a lubricant additive for enhancing energy efficiency, and more. Other chapters explore the potential of carbon nanotubes in hydrogen storage and carbon nanotube electronics.

Download or read book Carbon Nanotubes and Nanoparticles written by Alexander V. Vakhrushev and published by CRC Press. This book was released on 2019-03-19 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume looks at significant new research, methodologies, and applications in the fields of carbon nanotubes and nanoparticles. It explores a variety of new developments in advanced carbon nanotubes and nanoparticles along with the tools to characterize and predict their properties and behavior. It introduces and reviews methods that are most frequently encountered in sophisticated nano-scaled materials domains, and helps to bridge the gap between classical analysis and modern real-life applications. A diverse array of topics in the field is addressed that provides many practical insights into nanocomposites and nanomaterials sciences.

Download or read book Carbon Nanotubes and Graphene written by Kazuyoshi Tanaka and published by Newnes. This book was released on 2014-07-10 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanotubes and Graphene is a timely second edition of the original Science and Technology of Carbon Nanotubes. Updated to include expanded coverage of the preparation, purification, structural characterization, and common application areas of single- and multi-walled CNT structures, this work compares, contrasts, and, where appropriate, unitizes CNT to graphene. This much expanded second edition reference supports knowledge discovery, production of impactful carbon research, encourages transition between research fields, and aids the formation of emergent applications. New chapters encompass recent developments in the theoretical treatments of electronic and vibrational structures, and magnetic, optical, and electrical solid-state properties, providing a vital base to research. Current and potential applications of both materials, including the prospect for large-scale synthesis of graphene, biological structures, and flexible electronics, are also critically discussed. - Updated discussion of properties, structure, and morphology of biological and flexible electronic applications aids fundamental knowledge discovery - Innovative parallel focus on nanotubes and graphene enables you to learn from the successes and failures of, respectively, mature and emergent partner research disciplines - High-quality figures and tables on physical and mathematical applications expertly summarize key information – essential if you need quick, critically relevant data

Download or read book Industrial Applications of Carbon Nanotubes written by Huisheng Peng and published by William Andrew. This book was released on 2016-10-08 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial Applications of Carbon Nanotubes covers the current applications of carbon nanotubes in various industry sectors, from the military to visual display products, and energy harvesting and storage. It also assesses the opportunities and challenges for increased commercialization and manufacturing of carbon nanotubes in the years ahead. Real-life case studies illustrate how carbon nanotubes are used in each industry sector covered, providing a valuable resource for scientists and engineers who are involved and/or interested in carbon nanotubes in both academia and industry. The book serves as a comprehensive guide to the varied uses of carbon nanotubes for specialists in many related fields, including chemistry, physics, biology, and textiles. - Explains how carbon nanotubes can be used to improve the efficiency and performance of industrial products - Includes real-life case studies to illustrate how carbon nanotubes have been successfully employed - Explores how carbon nanotubes could be mass-manufactured in the future, and outlines the challenges that need to be overcome

Download or read book Solubilization and Dispersion of Carbon Nanotubes written by Oxana Vasilievna Kharissova and published by Springer. This book was released on 2017-09-01 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes a series of contemporary techniques and their combinations used for CNTs solubilization, from physical to chemical and biological, applying inorganic and organic compounds, as well as some metal complexes. In some cases, successive steps can be applied, for instance the use of low and high-weight surfactants, or mineral acid treatment for creation of –OH and –COOH groups and their further interaction with organic molecules. Each discussed method leads to an improvement of CNT solubility, frequently a considerable one. The formed dispersions can be stable for long periods of time, from several weeks to some months, and they sometimes even remain stable after centrifugation. Several special studies have been carried out in the areas of influence of solvent and light on CNTs dispersibility, combinations and abilities of surfactants, CNT cytotoxicity, etc. Applications of solubilized CNTs are discussed in this book as well.