Download or read book Harnessing the Properties of Carbon Nanotubes to Increase Applicability written by Christopher Rotella and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes have been an interest in the field of materials research since their identification in 1991. They boast robust mechanical, electrical, thermal, and chemical properties that make them desirable for a wide range of applications. A main feature that is studied heavily in this work is their acceptance of many different chemical dopants. Dopants such as B, N, Si, and S have been utilized in previous works, all showing unique changes to the physical properties of CNTs, allowing them to be tailored to different applications. This thesis seeks to further increase the applicability of CNTs through various methods, for both broad and specific applications.Nitrogen and silicon doping and their affect on both single- and multi-walled carbon nanotubes is studied in the effort of controlling their growth parameters. By introducing a growth aid in the form of ethanol, heights of vertically aligned N-doped multi-walled tubes were extended over 200% from heights with no growth aid. This is done through the extension of the catalytic activity time by etching amorphous carbon that deposits. Results suggest that the density and size of the catalyst particles plays a large factor in the concentration of growth aid required to effectively extend growth times. Silicon doping of single-walled tubes was achieved experimentally through the use of the precursor methoxytrimethylsilane inside the precursor solution of an aerosol-assisted chemical vapor deposition system. It is reported here that higher concentrations of the silicon precursor (>0.15wt% in solution) have an adverse effect of the growth of CNTs, effectively poisoning the catalyst. At lower concentrations, however, the silicon precursor contributes to a decrease in average tube diameter and an increase in overall lattice disorder, observed through the use of Raman spectroscopy. Fitting electrical resistance measurements as a function of temperature to Motts variable range hopping models allowed us to determine the mechanism behind electron conductance between nanotubes in bundles. The data suggests that electrons move in a 3-dimensional hopping pattern for bundles of pristine single-walled nanotubes, confirming theoretical previous research. For samples with small concentrations of silicon precursor present, the electron hopping changes to a mix between 2- and 3-dimensional. This indicates that the silicon adatoms act as a scattering point for electrons, directing them to neighboring tubes with a dimensionality factor of two. Further theoretical models were used to study the effect of single or multiple silicon adatoms on neighboring single-walled tubes and their effect on conductance between those tubes. This data suggests that the inclusion of any silicon dopants increases the conductance between the tubes, compared to pristine tubes.Interconnected networks of multi-walled tubes were formed through the use of welding and annealing. The networks were formed through first cross-aligning sheets of CNTs and ensuring physical contact between them. Following this, Ar was bubbled through ethanol and introduced to the sample inside a tube furnace. The ethanol deposited carbon on the nanotube networks, effectively welding them together. Subsequent tubes increased dramatically in diameter from the original tubes, though the outer walls lacked the crystallinity found in the original tubes. Through an anneal at 2200 the overall crystallinity was increased, measured through Raman spectroscopy, high-resolution transmission electron microscopy, and fast Fourier transform. Mechanical testing was performed on the original, welded, and annealed samples to compare tensile strength. The welding process improved the tensile strength by 38%, and the further annealing increased the tensile strength by 66% of the original value. By pre-patterning the iron catalyst used to grow CNTs onto the substrate through the use of photolithography, patterned arrays of vertically aligned CNTs can be formed. These arrays were then utilized as filters to trap viruses through the devices encapsulation in a polymer mold. The CNT-STEP (size tunable enrichment platform) devices were utilized in this work towards the trapping and understanding of the tomato-spotted wilt virus (TSWV). TSWV is a virus that infects upwards of 1000 different plants across the globe and is responsible for massive monetary losses in damages annually. The problems containing the virus stem from the fast nature at which it is able to be spread to neighboring plants, the long time in between inoculation and symptoms (2 weeks), and its inability to be detected prior to symptom onset. Our CNT-STEP devices were utilized to trap the TSWV viruses with the arrays of aligned tubes, allowing larger and smaller contaminants to be removed from the sample. This process effectively hyper-concentrates the viruses, allowing conventional detection methods to be able to detect the viruses. Experimental data shows that the devices were able to effectively trap the viruses, but further processing is required to optimize the system in order to achieve enhancement (where previously undetectable low concentrations are hyper-concentrated in devices in order to be effectively detected).Interconnected networks of single-walled tubes were used as a backbone to support an active battery material (LNMC) to create flexible lithium-ion battery cathodes. Carbon nanotubes are able to effectively replace the metal current collectors and the polymer binders commonly used in Li-ion battery electrodes. By replacing these components with CNTs, the surface area of functional material is increased, while decreasing the weight. Novel methods were utilized to aerosolize powdered LNMC while simultaneously growing and depositing single-walled tubes to create an even dispersion. The CNTs provide mechanical support to the structure, while also being the main contributor to electrical conductivity in the sample. The weight percentage of CNTs in the sample is able to be tuned, with more flexible and mechanically robust samples having >5 wt% CNTs. The ideal samples were grown with between 1-3 wt % CNTs, as higher CNT content made samples increasingly difficult to process, due to inherent adhesion to all surfaces. Simultaneous tensile and resistance measurements were performed to compare growth parameters. Samples were able to withstand 10% elongation at break, but lower stresses than the materials they look to replace. Samples showed overall decreases in resistivity after multiple cycles of elongation and relaxation, indicating small amounts of disorder in the network that are eliminated through stretching. Overall the samples showed excellent promise for use in flexible battery electrodes. Through the use of chemical doping, and strict growth parameter control, the applicability of CNTs can be widely increased.

Download or read book Carbon Nanotube Based Composites written by Antonio Pantano and published by Smithers Rapra. This book was released on 2012-09-28 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes (CNTs) have amazing properties and a key way to take advantage of this is by incorporating nanotubes into a matrix to build composite materials. The best candidates for this task are undoubtedly polymers. Almost every characteristic of a polymer can be significantly enhanced by adding carbon nanotubes and as a result, new potential applications of carbon nanotube enhanced polymer composites are discovered every day. However, before carbon nanotube enhanced polymer composites become commonplace there are some tough challenges that need to be overcome. This book reviews the status of worldwide research in both single-walled and multi-walled carbon nanotube based composites. It serves as a practical guide on carbon nanotube based composites and a reference to students and researchers from the academia and industry.

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 Carbon Nanotubes for Interconnects written by Aida Todri-Sanial and published by Springer. This book was released on 2016-07-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a single-source reference on the use of carbon nanotubes (CNTs) as interconnect material for horizontal, on-chip and 3D interconnects. The authors demonstrate the uses of bundles of CNTs, as innovative conducting material to fabricate interconnect through-silicon vias (TSVs), in order to improve the performance, reliability and integration of 3D integrated circuits (ICs). This book will be first to provide a coherent overview of exploiting carbon nanotubes for 3D interconnects covering aspects from processing, modeling, simulation, characterization and applications. Coverage also includes a thorough presentation of the application of CNTs as horizontal on-chip interconnects which can potentially revolutionize the nanoelectronics industry. This book is a must-read for anyone interested in the state-of-the-art on exploiting carbon nanotubes for interconnects for both 2D and 3D integrated circuits.

Download or read book Carbon Nanotubes written by Michael J. O’Connell and published by CRC Press. This book was released on 2018-10-03 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their discovery more than a decade ago, carbon nanotubes (CNTs) have held scientists and engineers in captive fascination, seated on the verge of enormous breakthroughs in areas such as medicine, electronics, and materials science, to name but a few. Taking a broad look at CNTs and the tools used to study them, Carbon Nanotubes: Properties and Applications comprises the efforts of leading nanotube researchers led by Michael O’Connell, protégé of the late father of nanotechnology, Richard Smalley. Each chapter is a self-contained treatise on various aspects of CNT synthesis, characterization, modification, and applications. The book opens with a general introduction to the basic characteristics and the history of CNTs, followed by discussions on synthesis methods and the growth of “peapod” structures. Coverage then moves to electronic properties and band structures of single-wall nanotubes (SWNTs), magnetic properties, Raman spectroscopy of electronic and chemical behavior, and electromechanical properties and applications in NEMS (nanoelectromechanical systems). Turning to applications, the final sections of the book explore mechanical properties of SWNTs spun into fibers, sidewall functionalization in composites, and using SWNTs as tips for scanning probe microscopes. Taking a fresh look at this burgeoning field, Carbon Nanotubes: Properties and Applications points the way toward making CNTs commercially viable.

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 Carbon Nanotubes written by Arvind Agarwal and published by CRC Press. This book was released on 2018-09-03 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Carbon Nanotubes for Biomedical Applications written by Rüdiger Klingeler and published by Springer Science & Business Media. This book was released on 2011-02-09 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the potential of multi-functional carbon nanotubes for biomedical applications. It combines contributions from chemistry, physics, biology, engineering, and medicine. The complete overview of the state-of-the-art addresses different synthesis and biofunctionalisation routes and shows the structural and magnetic properties of nanotubes relevant to biomedical applications. Particular emphasis is put on the interaction of carbon nanotubes with biological environments, i.e. toxicity, biocompatibility, cellular uptake, intracellular distribution, interaction with the immune system and environmental impact. The insertion of NMR-active substances allows diagnostic usage as markers and sensors, e.g. for imaging and contactless local temperature sensing. The potential of nanotubes for therapeutic applications is highlighted by studies on chemotherapeutic drug filling and release, targeting and magnetic hyperthermia studies for anti-cancer treatment at the cellular level.

Download or read book Syntheses and Applications of Carbon Nanotubes and Their Composites written by Satoru Suzuki and published by . This book was released on 2013 with total page 550 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 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 Carbon Nanotubes written by M. Endo and published by Elsevier. This book was released on 2013-10-22 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Handbook of Carbon Nanotubes written by Jiji Abraham and published by Springer Nature. This book was released on 2022-11-16 with total page 2099 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook covers the fundamentals of carbon nanotubes (CNT), their composites with different polymeric materials (both natural and synthetic) and their potential advanced applications. Three different parts dedicated to each of these aspects are provided, with chapters written by worldwide experts in the field. It provides in-depth information about this material serving as a reference book for a broad range of scientists, industrial practitioners, graduate and undergraduate students, and other professionals in the fields of polymer science and engineering, materials science, surface science, bioengineering and chemical engineering. Part 1 comprises 22 chapters covering early stages of the development of CNT, synthesis techniques, growth mechanism, the physics and chemistry of CNT, various innovative characterization techniques, the need of functionalization and different types of functionalization methods as well as the different properties of CNT. A full chapter is devoted to theory and simulation aspects. Moreover, it pursues a significant amount of work on life cycle analysis of CNT and toxicity aspects. Part 2 covers CNT-based polymer nanocomposites in approximately 23 chapters. It starts with a short introduction about polymer nanocomposites with special emphasis on CNT-based polymer nanocomposites, different manufacturing techniques as well as critical issues concerning CNT-based polymer nanocomposites. The text deeply reviews various classes of polymers like thermoset, elastomer, latex, amorphous thermoplastic, crystalline thermoplastic and polymer fibers used to prepare CNT based polymer composites. It provides detailed awareness about the characterization of polymer composites. The morphological, rheological, mechanical, viscoelastic, thermal, electrical, electromagnetic shielding properties are discussed in detail. A chapter dedicated to the simulation and multiscale modelling of polymer nanocomposites is an additional attraction of this part of the Handbook. Part 3 covers various potential applications of CNT in approximately 27 chapters. It focuses on individual applications of CNT including mechanical applications, energy conversion and storage applications, fuel cells and water splitting, solar cells and photovoltaics, sensing applications, nanofluidics, nanoelectronics and microelectronic devices, nano-optics, nanophotonics and nano-optoelectronics, non-linear optical applications, piezo electric applications, agriculture applications, biomedical applications, thermal materials, environmental remediation applications, anti-microbial and antibacterial properties and other miscellaneous applications and multi-functional applications of CNT based polymer nanocomposites. One chapter is fully focussed on carbon nanotube research developments: published papers and patents. Risks associated with carbon nanotubes and competitive analysis of carbon nanotubes with other carbon allotropes are also addressed in this Handbook.

Download or read book Medical Imaging Concepts Methodologies Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2016-07-18 with total page 2118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical imaging has transformed the ways in which various conditions, injuries, and diseases are identified, monitored, and treated. As various types of digital visual representations continue to advance and improve, new opportunities for their use in medical practice will likewise evolve. Medical Imaging: Concepts, Methodologies, Tools, and Applications presents a compendium of research on digital imaging technologies in a variety of healthcare settings. This multi-volume work contains practical examples of implementation, emerging trends, case studies, and technological innovations essential for using imaging technologies for making medical decisions. This comprehensive publication is an essential resource for medical practitioners, digital imaging technologists, researchers, and medical students.

Download or read book Carbon Nanotube Science written by Peter J. F. Harris and published by Cambridge University Press. This book was released on 2009-03-19 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides coverage of all of the important aspects of carbon nanotube research, including synthesis, properties and potential applications.

Download or read book Carbon Based Material for Environmental Protection and Remediation written by Mattia Bartoli and published by BoD – Books on Demand. This book was released on 2020-08-19 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-Based Material for Environmental Protection and Remediation presents an overview of carbon-based technologies and processes, and examines their usefulness and efficiency for environmental preservation and remediation. Chapters cover topics ranging from pollutants removal to new processes in materials science. Written for interested readers with strong scientific and technological backgrounds, this book will appeal to scientific advisors at private companies, academics, and graduate students.

Download or read book Modeling of Carbon Nanotubes Graphene and their Composites written by Konstantinos I. Tserpes and published by Springer Science & Business Media. This book was released on 2013-10-15 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large part of the research currently being conducted in the fields of materials science and engineering mechanics is devoted to carbon nanotubes and their applications. In this process, modeling is a very attractive investigation tool due to the difficulties in manufacturing and testing of nanomaterials. Continuum modeling offers significant advantages over atomistic modeling. Furthermore, the lack of accuracy in continuum methods can be overtaken by incorporating input data either from experiments or atomistic methods. This book reviews the recent progress in continuum modeling of carbon nanotubes and their composites. The advantages and disadvantages of continuum methods over atomistic methods are comprehensively discussed. Numerical models, mainly based on the finite element method, as well as analytical models are presented in a comparative way starting from the simulation of isolated pristine and defected nanotubes and proceeding to nanotube-based composites. The ability of continuum methods to bridge different scales is emphasized. Recommendations for future research are given by focusing on what still continuum methods have to learn from the nano-scale. The scope of the book is to provide current knowledge aiming to support researchers entering the scientific area of carbon nanotubes to choose the appropriate modeling tool for accomplishing their study and place their efforts to further improve continuum methods.

Download or read book Advanced Thermoelectric Materials for Energy Harvesting Applications written by Saim Memon and published by BoD – Books on Demand. This book was released on 2019-10-30 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Thermoelectric Materials for Energy Harvesting Applications is a research-intensive textbook covering the fundamentals of thermoelectricity and the process of converting heat energy into electrical energy. It covers the design, implementation, and performance of existing and advanced thermoelectric materials. Chapters examine such topics as organic/inorganic thermoelectric materials, performance and behaviors of thermoelectric devices, and energy harvesting applications of thermoelectric devices.