carbon-nanotubes

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Advanced Uses For Carbon Nanotubes

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ISBN : OCLC:1141778892
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Abstract : Super-aligned carbon nanotube (CNT) thin-film is used to create thermophones. The thermal properties of CNT film allow it to rapidly heat and cool when supplied AC power producing temperature and pressure gradients and, therefore, audible sound. The advantages of CNT thermophones include eliminating all moving components of traditional speakers and reducing the weight of the speaker itself by using CNT film, which is nearly weightless. Additionally, the flexibility of CNT film provides the unique opportunity to construct loudspeakers of various sizes and geometries. In this work, a spherical CNT thermophone is designed, manufactured, and tested for directivity with the overall goal of creating a perfectly omnidirectional sound source over a wide frequency band. The spherical CNT thermophone is found to have significant directivity associated with it at the lowest and highest audible frequency bands, while performance is nearly omnidirectional at middle frequency bands. The second part of this work uses of the same CNT thin-film as a microphone through hot-film anemometry sensing the particle velocity in acoustic waves of pure frequency tones. The advantages of a CNT hot-film microphone are similar to those of CNT thermophones and include the ability to construct microphones of various sizes and shapes because the film is ultra-lightweight and flexible. The microphone's sensitivity, power requirements, and frequency response were investigated. Results indicate that it may be feasible to use a CNT hot-film anemometer configuration as a microphone for detecting pure frequency tones across a large frequency range.

Carbon Nanotubes For Polymer Reinforcement

Author : Peng-Cheng Ma
ISBN : 1439826242
Genre : Technology & Engineering
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Discovered in the twentieth century, carbon nanotubes (CNT) were an integral part of science and industry by the beginning of the twenty first century, revolutionizing chemistry, physics, and materials science. More recent advances in carbon nanotube production methods have resulted in a tremendous push to incorporate CNTs into polymer matrices. Although many advances have been made, two major obstacles continue unresolved: the enhancement of interfacial adhesion between CNTs and polymer matrix, and the improvement of dispersion of CNTs in polymers. Both substantial original contributors to the field, the authors present Carbon Nanotubes for Polymer Reinforcement, the first monograph on various conventional and innovative techniques to disperse and functionalize carbon nanotubes for polymer reinforcement, elegantly explaining the basic sciences and technologies involved in those processes. Topics covered include: Use of CNTs in fabricating novel polymer composites Principles and mechanisms behind CNT dispersion and functionalization Methods for the functionalization and dispersion of CNTs in polymer matrices Effects of CNTs on functional and mechanical properties of polymer composites Optimization of CNT/polymer nanocomposite fabrication Carbon Nanotubes for Polymer Reinforcement is a comprehensive treatment and critical review of the new class of polymer nanocomposites, and points to areas of future developments. Composites engineers, scientists, researchers, and students will find the basic knowledge and technical results contained herein informative and useful references for their work, whether for advanced research or for design and manufacture of such composites.

Carbon Nanotubes

Author : M. Endo
ISBN : 9780080545530
Genre : Technology & Engineering
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Carbon nanotubes have been studied extensively in relation to fullerenes, and together with fullerenes have opened a new science and technology field on nano scale materials. A whole range of issues from the preparation, structure, properties and observation of quantum effects in carbon nanotubes in comparison with 0-D fullerenes are discussed. In addition, complementary reviews on carbon nanoparticles such as carbon nano-capsules, onion-like graphite particles and metal-coated fullerenes are covered. This book aims to cover recent research and development in this area, and so provide a convenient reference tool for all researchers in this field. It is also hoped that this book can serve to stimulate future work on carbon nanotubes.

Carbon Nanotubes And Nanostructures From Fundamental Properties And Processes To Applications And Devices

Author : D. Guldi
ISBN : 9781566777889
Genre : Science
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The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Carbon Nanotubes and Nanostructures: From Fundamental Properties and Processes to Applications and Devices¿, held during the 216th meeting of The Electrochemical Society, in Vienna, Austria from October 4 to 9, 2009.

Applied Physics Of Carbon Nanotubes

Author : Slava V. Rotkin
ISBN : 9783540280750
Genre : Science
File Size : 47. 45 MB
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The book describes the state-of-the-art in fundamental, applied and device physics of nanotubes, including fabrication, manipulation and characterization for device applications; optics of nanotubes; transport and electromechanical devices and fundamentals of theory for applications. This information is critical to the field of nanoscience since nanotubes have the potential to become a very significant electronic material for decades to come. The book will benefit all all readers interested in the application of nanotubes, either in their theoretical foundations or in newly developed characterization tools that may enable practical device fabrication.

Carbon Nanotubes And Related Structures

Author : Peter J. F. Harris
ISBN : 0521005337
Genre : Science
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This is a 1999 book on carbon nanotubes, one of the most exciting areas in materials chemistry.

Current Transport Modeling Of Carbon Nanotubes

Author : Jose Mauricio Marulanda
ISBN : 9783639111088
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Buckling Analysis Of Carbon Nanotubes Application Of A Concurrent Atomistic Continuum Multiscale Approach

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ISBN : OCLC:1051865351
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Abstract In this work, a concurrent atomistic‐continuum multiscale approach is applied in order to analyse the buckling behaviour of carbon nanotubes. In particular, the bridging domain method that is grounded on an overlapping domain partitioning scheme with an energy‐based blending of the subdomains is used. The atomistic subdomain is modelled by means of a molecular statics approach and the continuum subdomain is handled using the finite element method. Outcomes of numerical simulations of defective single‐walled carbon nanotubes under bending load are presented. More specifically, the impact of variably located Stone‐Wales defects on the buckling behaviour of a nanotube is studied using the concurrent multiscale approach. The results of the multiscale model are validated against a full atomistic molecular statics simulation. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim).

Nanowelded Carbon Nanotubes

Author : Changxin Chen
ISBN : 9783642014994
Genre : Technology & Engineering
File Size : 30. 41 MB
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This book introduces a novel ultrasonic nanowelding technology of carbon nanotubes (CNTs) to metal electrodes and its application for CNT devices. It will be of interest to graduates, scientists and engineers working on CNTs and related topics.

The Science And Technology Of Carbon Nanotubes

Author : T. Yamabe
ISBN : 0080540759
Genre : Science
File Size : 69. 4 MB
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Carbon Nanotubes (CNT) is the material lying between fullerenes and graphite as a new member of carbon allotropes. The study of CNT has gradually become more and more independent from that of fullerenes. As a novel carbon material, CNTs will be far more useful and important than fullerenes from a practical point of view, in that they will be directly related to an ample field of nanotechnology. This book presents a timely, second-generation monograph covering as far as practical, application of CNT as the newest science of these materials. Most updated summaries for preparation, purification and structural characterisation of single walled CNT and multi walled CNT are given. Similarly, the most recent developments in the theoretical treatments of electronic structures and vibrational structures are covered. The newest magnetic, optical and electrical solid-state properties providing a vital base to actual application technologies are described. Explosive research trends towards application of CNTs, including the prospect for large-scale synthesis, are also introduced. It is the most remarkable feature of this monograph that it devotes more than a half of the whole volume to practical aspects and offers readers the newest developments of the science and technological aspects of CNTs.

Carbon Nanotubes

Author : Thomas W. Ebbesen
ISBN : 0849396026
Genre : Technology & Engineering
File Size : 21. 72 MB
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Nanomaterials are destined to become a discipline as distinct and important as polymers are in chemistry! With the realization that the structure of molecules such as C60 and C70 followed simple geometric principles, it became clear that a great variety of hollow, closed carbon structures, including nanotubes, could be made along the same principles. The modern nanotube can be thought of as the ultimate fiber formed of perfectly closed, seamless shells having unique features, such as mechanical and electronic properties that are very sensitive to its geometry and its dimensions. The nanotube has many uses:

Carbon Nanotubes And Related Structures

Author : Dirk M. Guldi
ISBN : 3527629947
Genre : Technology & Engineering
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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.

Medicinal Chemistry And Pharmacological Potential Of Fullerenes And Carbon Nanotubes

Author : Franco Cataldo
ISBN : 9781402068454
Genre : Science
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Fullerenes and nanotubes are two classes of carbon structures or allotropes, which were discovered about 17 years ago. Since that time, many chemical derivatives have been synthesized using fullerenes and nanotubes as building blocks. Particularly promising was the theory that the chemical properties of fullerenes, and certain derivatives, made them likely candidates for anticancer drugs, inhibitors of viruses such as HIV, or even as anti-bacterials. Their cyctotoxicity can also be controlled by specific circumstances. In addition, the funtionalization of nanotubes has not only produced relatively simple derivatives, but also complex hybrids with biological macromolecules, which show unique supramolecular architecture and which are promising in many medical applications. The application of fullerenes and nanotubes in medicine is at the frontier of our knowledge, thus the work in this field represents the basis for future novel developments.

Carbon Nanotubes

Author : Gustavo A. Rivas
ISBN : 1607413140
Genre : Technology & Engineering
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The goal of this book is to summarise the recent advances in carbon nanotubes as a new material for electrochemical sensors. Since their discovery in 1991, carbon nanotubes have received considerable attention in different fields. Their special geometry and unique electronic, mechanical, chemical and thermal properties make them a very attractive material for the design of electrochemical biosensors. The first application of carbon nanotubes in the preparation of a sensor was reported by Britto in 1996. Since then, an increasing number of publications involving sensors based on carbon nanotubes (either single or multi-wall) for substrates like glucose, lactate, alcohols, phenols, neurotransmitters, aminoacids, proteins, carbohydrates among others, have been reported. This fact demonstrates the usefulness of carbon nanotubes for the development of electrochemical sensors. The advantages of carbon nanotubes for promoting electron transfer reactions -with special emphasis in those involving biomolecules, the different methodologies for incorporating carbon nanotubes in sensors (either suspended in solutions, in polymeric films or in composite matrices), the analytical performance of the resulting biosensors as well as future prospects are discussed in this book.

Understanding Carbon Nanotubes

Author : Annick Loiseau
ISBN : 9783540269229
Genre : Science
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This volume presents the foundations of carbon nanotube science, reviewing recent developments and prospects for practical application. Each chapter summarizes relevant concepts from physics, chemistry or materials science, followed by detailed reports on topics including polymorphism and mircostructure of carbon; synthesis and growth; structural analysis by electron microscopy; spectroscopic methods; electronic structure; transport; mechanical and surface properties of nanotubes and composites.

Noncovalent Functionalization Of Carbon Nanotubes

Author : Claudia Backes
ISBN : 9783642275814
Genre : Science
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In this thesis, Claudia Backes guides the reader through her multidisciplinary research into the non-covalent functionalization of carbon nanotubes in water. Although one of the most remarkable materials of the 21st century, carbon nanotubes often have limited application because of their intrinsically low solubility and polydispersity. The author shows that rational surfactant design is a powerful tool for chemists because it can unmask the key to solubilization and allow us to tailor nanotube surface and optical properties in a fully reversible fashion. Aspects of organic, physical and analytical chemistry, as well as colloidal sciences are covered in this outstanding work which brings us one step closer to exploiting this super-material to its full potential.

Carbon Nanotubes From Basic Research To Nanotechnology

Author : Valentin N. Popov
ISBN : 1402045735
Genre : Technology & Engineering
File Size : 25. 40 MB
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Proceedings of the NATO Advanced Study Institute on Carbon Nanotubes: From Basic Research to Nanotechnology, Sozopol, Bulgaria, 21-31 May 2005

Carbon Nanotubes

Author : Mildred S. Dresselhaus
ISBN : 9783540410867
Genre : Technology & Engineering
File Size : 87. 65 MB
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After a short introduction and a brief review of the relation between carbon nanotubes, graphite and other forms of carbon, the synthesis techniques and growth mechanisms for carbon nanotubes are described. This is followed by reviews on nanotube electronic structure, electrical, optical, and mechanical properties, nanotube imaging and spectroscopy, and nanotube applications.

Computational Physics Of Carbon Nanotubes

Author : Hashem Rafii-Tabar
ISBN : 9780521853002
Genre : Science
File Size : 57. 30 MB
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This book presents the key theories, computational modelling and numerical simulation tools required to understand carbon nanotube physics. Specifically, methods applied to geometry and bonding, mechanical, thermal, transport and storage properties are addressed. This self-contained book will interest researchers across a broad range of disciplines.

Carbon Nanotubes

Author : Arvind Agarwal
ISBN : 9781439811504
Genre : Technology & Engineering
File Size : 38. 40 MB
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From the Foreword, written by legendary nano pioneer M. Meyyappan, Chief Scientist for Exploration Technology NASA Ames Research Center, Moffett Field, California, USA: "...there is critical need for a book to summarize the status of the field but more importantly to lay out the principles behind the technology. This is what Professor Arvind Agarwal and his co-workers ... have done here." Carbon Nanotubes: Reinforced Metal Matrix Composites reflects the authors’ desire to share the benefits of nanotechnology with the masses by developing metal matrix carbon nanotube (MM-CNT) composites for large-scale applications. Multiwall carbon nanotubes can now be produced on a large scale and at a significantly reduced cost. The book explores potential applications and applies the author’s own research to highlight critical developmental issues for different MM-CNT composites—and then outline novel solutions. With this problem-solving approach, the book explores: Advantages, limitations, and the evolution of processing techniques used for MM-CNT composites Characterization techniques unique to the study of MM-CNT composites—and the limitations of these methods Existing research on different MM-CNT composites, presented in useful tables that include composition, processing method, quality of CNT dispersion, and properties The micro-mechanical strengthening that results from adding CNT The applicability of micro-mechanics models in MM-CNT composites Significance of chemical stability for carbon nanotubes in the metal matrix as a function of processing, and its impact on CNT/metal interface and mechanical properties Computational studies that have not been sufficiently covered although they are essential to research and development The critical issue of CNT dispersion in the metal matrix, as well as a unique way to quantify CNT distribution and subsequently improve control of the processing parameters for obtaining improved properties Carbon Nanotubes: Reinforced Metal Matrix Composites paints a vivid picture of scientific and application achievements in this field. Exploring the mechanisms through which CNTs are enhancing the properties of different metal-based composites, the authors provide a roadmap to help researchers develop MM-CNT composites and choose potential materials for use in emerging areas of technology.

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