Download or read book Multifunctional Carbon Nanotube Yarns for Artificial Muscles and Energy Harvesters written by Zhong Wang and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The superb mechanical, physical, and chemical properties of carbon nanotube (CNT) yarns have promoted their application as function components that program actuation, sensing, and power management for soft robotics and smart systems. Success in making artificial muscles that are faster, more powerful, and that can provide larger strokes would expand their applications. Efficient conversion of ambient mechanical energy into electrical energy is needed for diverse applications, including self-powered wireless sensors, structural and human health monitoring systems, and the extraction of energy from ocean waves. Herein, the development of CNT yarn artificial muscles and mechanical energy harvesters are first discussed, and the obtained understanding of underlying mechanisms provide guidance for optimizing muscle and harvester performances. Next, unipolar stroke CNT yarn muscles are described, in which muscle stroke changes between extreme potentials are additive and muscle stroke remarkably increases with increasing potential scan rate. The normal decrease in stroke with increasing scan rate, because of decreased capacitance, is overwhelmed by a dramatic increase in effective ion size caused by electroosmotic pumping of solvent. These coiled carbon nanotube yarn muscles contain a yarn guest that shifts the yarn’s potential of zero charge (pzc) by over a volt, either positively or negatively. Such pzc shift agents include ion-exchange membrane polymers, oxidized graphene platelets, and surfactants. Record muscle strokes, contractile work-per-cycle, contractile power densities, and energy conversion efficiencies are obtained for unipolar muscles. Then, powerful CNT yarn mechanical energy harvesters (we call twistrons) are described, which are electrochemical artificial muscles run in reverse. Stretching a coiled CNT yarn can provide large, reversible changes in electrochemical capacitance, which enables conversion of mechanical energy to electrical energy. The performance of these twistron harvesters can be increased by diverse fabrication methods: optimizing the structure of the precursor CNT forest, using stretchinduced alignment, thermal annealing under tension, and incorporating reduced graphene oxide nanoplates. The peak output power at 1 Hz and at 30 Hz for a sinusoidal stretch were 0.73 and 3.19 kW/kg, which are 15- and 13-fold higher than for previous twistron harvesters at these respective frequencies. This performance at 30 Hz was over 12-fold that of other prior-art mechanical energy harvesters for frequencies between 1 Hz and 600 Hz. Last, the opportunities and challenges for future practical applications of CNT yarns are highlighted.
Download or read book Carbon Nanotube Fibres and Yarns written by Menghe Miao and published by Woodhead Publishing. This book was released on 2019-09-14 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanotube Fibres and Yarns for Smart Textiles: Production, Properties and Applications in Smart Textiles explains the relevance of carbon nanotube science and provides new insights on this emerging, high-performance textile material. Particular emphasis is placed on applications in smart textiles and wearable electronics applications, such as flexible sensors, actuators and energy sources. This collection examines the state-of-the-art in carbon nanotube (CNT) research, providing guidance for anyone who is exploring problems where CNTs may provide design solutions. Finally, the book addresses advances in yarn spinning methods, yarn structures and properties. Drawing on his experience in the textile industry, the book's editor presents academic research in a way that is comprehensible and useful to materials scientists and engineers in practice. Explains how carbon nanotube science can meet the challenging requirements of important and emerging smart textiles and wearable electronics applications Reviews and analyzes key developments on CNT yarn spinning methods, yarn structures and properties, and proposed applications Addresses the potential applications of CNT yarns and nanocomposite fibers
Download or read book Nanotube Superfiber Materials written by Lakshman K. Randeniya and published by Elsevier Inc. Chapters. This book was released on 2013-09-16 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter discusses fabrication of carbon nanotube yarn and coating of metals and nonmetals onto the yarn to increase electrical conductivity. An increase in weight due to the metal particle coating is the trade-off for achieving increased electrical conductivity. Electrical conductors made from the hybrid alloy yarn may have multiple applications including in electrical conductors and transmission lines. Carbon nanotube yarns also show potential as microelectrodes and robust and flexible chemiresistors for molecular detection. The decoration of metal nanoclusters on the yarn provides high sensitivity and selectivity to gases that are present in industrial and environmental emissions. Overall, coating yarn with particles produces a multifunctional material that opens up new design possibilities for applications.
Download or read book Characterization of Multifunctional Carbon Nanotube Yarns written by Christian David Page and published by . This book was released on 2013 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multifunctional Carbon Nanotube Fiber Composites written by and published by . This book was released on 2004 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project provides a spinning process that results in continuous nanotube composite fibers that are about an order of magnitude tougher than any fibers made by mankind or nature. We make two hundred-meter long reels of continuous nanotube-polymer composite fiber at 70X the prior-art rate and achieve fiber strengths higher than 1.8 GPa. Our drawn nanotube fibers match the energy absorption capability of spider silk up to the breaking strain of this silk (30%), and continue absorbing energy until they reach an energy-to-break of 570 J/g, as compared with 160 J/g for the spider silk and 50 J/g for Spectra fiber, 33 J/g for Kevlar fiber. The density-normalized fiber tensile strength is presently 2.2X that of high performance steel wire and the density-normalized Young's modulus of the nanotube fiber and steel wire are identical. We have fabricated these fibers into 100 micron diameter, high performance supercapacitors that are woven into textiles. Other major advances in nanotube spinning, actuation, energy storage, and thermal energy harvesting are described which are potentially important for synthetic multifunctional materials applications.
Download or read book Carbon Nanotube Electronics written by Ali Javey and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a complete overview of the field of carbon nanotube electronics. It covers materials and physical properties, synthesis and fabrication processes, devices and circuits, modeling, and finally novel applications of nanotube-based electronics. The book introduces fundamental device physics and circuit concepts of 1-D electronics. At the same time it provides specific examples of the state-of-the-art nanotube devices.
Download or read book Fiber Electronics written by Huisheng Peng and published by Springer Nature. This book was released on 2020-12-14 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the main advances in fiber electronics, like fiber-shaped solar cells, batteries, supercapacitors, sensors, light-emitting devices, memristors and communication devices from the standpoints of material synthesis, structure design and property enhancement. It focuses on revealing the separation and transport mechanisms of charges, establishing transport equations for electrons and ions, and emphasizing integration methods in fiber devices. In closing, it reviews emerging applications based on fiber devices that could accelerate their large-scale production in the near future. Given its scope, the book offers a valuable resource for scientists, engineers, graduate students and undergraduate students in a wide variety of fields such as advanced materials, energy, electrochemistry, applied physics, nanoscience and nanotechnology, polymer science and engineering and biomedical science. It also benefits many non-specialist industrialists who are working to promote new technologies.
Download or read book Carbon Nanotube Polymer Composites written by Dimitrios Tasis and published by Royal Society of Chemistry. This book was released on 2015-11-09 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemically-modified carbon nanotubes (CNTs) exhibit a wide range of physical and chemical properties which makes them an attractive starting material for the preparation of super-strong and highly-conductive fibres and films. Much information is available across the primary literature, making it difficult to obtain an overall picture of the state-of-the-art. This volume brings together some of the leading researchers in the field from across the globe to present the potential these materials have, not only in developing and characterising novel materials but also the devices which can be fabricated from them. Topics featured in the book include Raman characterisation, industrial polymer materials, actuators and sensors and polymer reinforcement, with chapters prepared by highly-cited authors from across the globe. A valuable handbook for any academic or industrial laboratory, this book will appeal to newcomers to the field and established researchers alike.
Download or read book Smart Nanomaterials for Biosensing and Therapy Applications written by Qitong Huang and published by Frontiers Media SA. This book was released on 2023-02-17 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Triboelectric Nanogenerators written by Zhong Lin Wang and published by Springer. This book was released on 2016-08-17 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces an innovative and high-efficiency technology for mechanical energy harvesting. The book covers the history and development of triboelectric nanogenerators, basic structures, working principles, performance characterization, and potential applications. It is divided into three parts: Part A illustrates the fundamental working modes of triboelectric nanogenerators with their prototype structures and theoretical analysis; Part B and Part C introduce two categories of applications, namely self-powered systems and self-powered active sensors. The book will be an ideal guide to scientists and engineers beginning to study triboelectric nanogenerators or wishing to deepen their knowledge of the field. Readers will be able to place the technical details about this technology in context, and acquire the necessary skills to reproduce the experimental setups for fabrication and measurement.
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 Report to the General Assembly of Rhode Island Relative to the Registry and Returns of Births Marriages and Deaths written by Rhode Island. Division of Vital Statistics and published by . This book was released on 1913 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multimodal electronic textiles for intelligent human machine interfaces written by Xiao Wei and published by OAE Publishing Inc.. This book was released on 2023-05-18 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart wearable electronic devices capable of information exchanging (such as human-machine interfaces) have developed into key carriers for the interconnection, intercommunication, and interaction between humans and machines. Multimodal electronic textiles that incorporate multifunctional sensors into daily clothing are an emerging technology to realize smart wearable electronics. This has greatly advanced human-machine interface technology by bridging the gap between wearing comfort and traditional wearable electronic devices, which will facilitate the rapid development and wide application of natural human-machine interfaces. In this article, we provide a comprehensive summary of the latest research progress on multimodal electronic textiles for intelligent human-machine interfaces. Firstly, we introduce the most representative electronic textile manufacturing strategies in terms of functional fiber preparation and multimodal textile forming. Then, we explore the multifunctional sensing capability of multimodal electronic textiles and emphasize their advanced applications in intelligent human-machine interfaces. Finally, we present new insights on the future research directions and the challenges faced in practical applications of multimodal electronic textiles.
Download or read book Handbook of Fibrous Materials 2 Volumes written by Jinlian Hu and published by John Wiley & Sons. This book was released on 2020-06-22 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by a leading expert in the field with contributions from experienced researchers in fibers and textiles, this handbook reviews the current state of fibrous materials and provides a broad overview of their use in research and development. Volume One focuses on the classes of fibers, their production and characterization, while the second volume concentrates on their applications, including emerging ones in the areas of energy, environmental science and healthcare. Unparalleled knowledge of high relevance to academia and industry.
Download or read book Nanotubes and Nanofibers written by Yury Gogotsi and published by CRC Press. This book was released on 2019-08-30 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Size, Shape, and Synthesis Key to "Tuning" Properties The discovery and rapid evolution of carbon nanotubes have led to a vastly improved understanding of nanotechnology, as well as dozens of possible applications for nanomaterials of different shapes and sizes ranging from composites to biology, medicine, energy, transportation, and electronic devices. Nanotubes and Nanofibers offers an overview of structure-property relationships, synthesis and purification, and potential applications of carbon nanotubes and fibers, including whiskers, cones, nanobelts, and nanowires. Using research on carbon nanotubes as a foundation to further developments, this book discusses methods for growing and synthesizing amorphous and nanocrystalline graphitic carbon structures and inorganic nanomaterials, including wet chemical synthesis, chemical vapor deposition (CVD), arc discharge, and others. It also describes boron nitride and metal chalcogenide nanotubes in detail and reviews the unique properties and methods for characterizing and producing single-crystalline semiconducting and functional-oxide nanowires. The chapters also identify challenges involving the controlled growth, processing, and assembly of organic and inorganic nanostructures that must be addressed before large-scale applications can be implemented. Edited by award-winning professor and researcher Dr. Yury Gogotsi, Nanotubes and Nanofibers offers a well-rounded perspective on the advances leading to improved nanomaterial properties for a range of new devices and applications including electronic devices, structural composites, hydrogen and gas storage, electrodes in electrochemical energy-storage systems, sorbents, and filters.
Download or read book Nanopapers written by Wenyi Huang and published by William Andrew. This book was released on 2017-10-19 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanopapers: From Nanochemistry and Nanomanufacturing to Advanced Applications gives a comprehensive overview of the emerging technology of nanopapers. Exploring the latest developments on nanopapers in nanomaterials chemistry and nanomanufacturing technologies, this book outlines the unique properties of nanopapers and their advanced applications. Nanopapers are thin sheets or films made of nanomaterials such as carbon nanotubes, carbon nanofibers, nanoclays, cellulose nanofibrils, and graphene nanoplatelets. Noticeably, nanopapers allow highly concentrated nanoparticles to be tightly packed in a thin film to reach unique properties such as very high electrical and thermal conductivities, very low diffusivity, and strong corrosion resistance that are shared by conventional polymer nanocomposites. This book presents a concise introduction to nanopapers, covering concepts, terminology and applications. It outlines both current applications and future possibilities, and will be of great use to nanochemistry and nanomanufacturing researchers and engineers who want to learn more about how nanopapers can be applied. - Outlines the main uses of nanopapers, showing readers how this emerging technology should best be applied - Shows how the unique properties of nanopapers make them adaptable for use in a wide range of applications - Explores methods for the nanomanufacture of nanopapers
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.
