Download or read book Low Dimensional Carbon Based Organic Thermoelectric Composites written by Corey Alan Hewitt and published by . This book was released on 2013 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of the most commonly used room temperature thermoelectric material bismuth telluride nearly sixty years ago, the performance of thermoelectrics has seen little improvement. In recent years, slight improvements through the use of complex crystalline structures and nano arrays have renewed interest in thermoelectrics, however, their performance is still orders of magnitude below that required to replace current heat engine power sources. Alternatively, one potential solution is to consider using thermoelectrics in low powered applications where their efficiencies are comparable to those of standard heat engines, and where the use of heat engines is physically impractical. The use of nonorganic crystalline thermoelectrics like bismuth telluride are also somewhat impractical despite their high performance at lower power output levels due to their fragile and rigid physical structure which limits their application. Carbon nanotube based polymer composites possess several properties that make them ideal for use in low powered waste heat recovery applications not suitable to nonorganic crystalline materials. The favorable thermoelectric properties of the carbon nanotubes with moderate Seebeck coefficients and potentially large electrical conductivities result in modest power factors, while the low thermal conductivity of the polymer host aids in maintaining a temperature gradient across the composite, thus improving the figure of merit. Although the thermoelectric performance of these composites is lower than that of standard crystalline thermoelectrics, their light weight and flexible physical structure makes them more ideal for use in personal and portable electronics that utilize waste heat to maintain a temperature gradient. In order to effectively utilize a thermoelectric material in a practical application, they must be combined in a device structure consisting of alternating p-type and n-type elements that are connected electrically in series and thermally in parallel. Here, we introduce a novel device architecture suited to using the thin film carbon nanotube based polymer composites. The device performance is then dictated by the intrinsic thermoelectric properties of the individual layers composing the device. Therefore, the majority of the work presented here focuses on understanding the thermoelectric properties of the individual layers. Effects on these properties are quantified including the chemical vapor deposition growth temperature, sonication, acid reflux treatment, temperature, n-type doping through the use of polyethylenimine, and composite composition including carbon nanotube, polymer, and solvent type and concentrations. By quantifying these effects, the thermoelectric performance of the individual layers can be optimized in order to increase the total power output of the device. Ultimately however, the total power output is limited by the specific application; therefore, power output measurements are performed versus several application parameters including the temperature difference, load resistance, dimensions of the device, and the number of repeatable thermocouple elements contained within the device. Finally, the power output of an interconnected device array is measured to exemplify the potential performance of an application appropriate design.

Download or read book Fiber Composites Made of Low Dimensional Carbon Materials written by Xian Zhang and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, a scientific shift has been observed that the use of carbon-based nanomaterials in different composite materials can improve their mechanical, thermal, and electrical properties. Different carbon-based nanomaterials have various structures and mechanical, electrical, and thermal conductivity characteristics. By combining with different material composite methods, carbon composite materials with different structures can be prepared. Through the optimization of material structure, carbon composite materials with high performance can be obtained. SP2 hybrid carbon materials, such as carbon nanotubes (CNTs), carbon fiber (CF), and graphene, have excellent electrical, thermal, and mechanical properties due to their regular carbon six-membered ring structure, so they are the main low-dimensional carbon materials and are widely used in composite research. In this chapter, the research progress of carbon nanotubes, carbon fibers, and graphene-based fibers (GBFs) in composite materials are introduced, respectively, and the preparation method, molding process, performance, and application in industry are summarized. Finally, the existing problems and future development trend of carbon-based composites are prospected.

Download or read book Organic Thermoelectric Materials written by Zhiqun Lin and published by Royal Society of Chemistry. This book was released on 2019-10-18 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarises the significant progress made in organic thermoelectric materials, focusing on effective routes to minimize thermal conductivity and maximize power factor.

Download or read book Flexible Thermoelectric Polymers and Systems written by Jianyong Ouyang and published by John Wiley & Sons. This book was released on 2022-01-20 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible Thermoelectric Polymers and Systems Comprehensive review of the rapidly evolving field of flexible thermoelectric polymers Flexible Thermoelectric Polymers and Systems delivers an expansive exploration of the most recent developments in flexible thermoelectric polymers and composites, as well as their applications in thermoelectric generators and Peltier coolers. The book focuses on novel designs and applications of technologies such as low-dimensional thermoelectric materials and how the latest advances have begun to overcome problems including poor mechanical flexibility and high fabrication costs. The book begins with a review of the fundamentals of thermoelectric materials, including discussions of the properties of thermoelectric materials, the Seebeck, Peltier, and Thomson effects, electrical conductivity, thermal conductivity, and thermoelectric generators, cooling, and sensors. It goes on to discuss more advanced developments in the field, such as flexible thermoelectric plastics and the thermoelectric properties of conducting polymers with ionic conductors. The book also includes: Thorough introductions to thermoelectric materials and systems, as well as the chemistry and physics of intrinsically conductive polymers Comprehensive explorations of thermoelectric PEDOTs, p-type thermoelectric polymers, and N-type thermoelectric polymers Practical discussions of thermoelectric composites of carbon nanotubes, graphene, and nanomaterials In-depth examinations of polymer composites of inorganic thermoelectric semiconductors Perfect for academic and industrial researchers and engineers in physics, materials science, chemistry, and engineering, Flexible Thermoelectric Polymers and Systems is also an indispensable resource for graduate students and early-career professionals working in those fields.

Download or read book Advanced Thermoelectric Materials written by Chong Rae Park and published by John Wiley & Sons. This book was released on 2019-03-15 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Your guide to advanced thermoelectric materials Written by a distinguished group of contributors, this book provides comprehensive coverage of the most up-to-date information on all aspects of advanced thermoelectric materials — ranging from system biology, diagnostics, imaging, image-guided therapy, therapeutics, biosensors, and translational medicine and personalized medicine, as well as the much broader task of covering most topics of biomedical research.

Download or read book Organic Thermoelectric Materials written by Zhiqun Lin and published by Royal Society of Chemistry. This book was released on 2019-10-18 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermoelectric materials have received a great deal of attention in energy-harvesting and cooling applications, primarily due to their intrinsic low cost, energy efficient and eco-friendly nature. The past decade has witnessed heretofore-unseen advances in organic-based thermoelectric materials and devices. This title summarises the significant progress that has been made in the molecular design, physical characterization, and performance optimization of organic thermoelectric materials, focusing on effective routes to minimize thermal conductivity and maximize power factor. Featuring a series of state-of-the-art strategies for enhancing the thermoelectric figure of merit (ZT) of organic thermoelectricity, and highlighting cutting-edge concepts to promote the performance of organic thermoelectricity, chapters will strengthen the exploration of new high-ZT thermoelectric materials and their potential applications. With contributions from leading worldwide authors, Organic Thermoelectric Materials will appeal to graduate students as well as academic and industrial researchers across chemistry, materials science, physics and engineering interested in the materials and their applications.

Download or read book Composite and Nanocomposite Materials written by Tri-Dung Ngo and published by BoD – Books on Demand. This book was released on 2020-07-15 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the modern materials, the composites have a few decades of history. However, there has been a tremendous advancement of this class of material in science and technology. During recent decades, composite materials have steadily gained ground in nearly all sectors. The composite materials have been used in various industrial applications such as buildings and constructions, aerospace, automotive and sports equipment, consumer products etc. Nanotechnology is rapidly evolving, and science, engineering, and technology have merged to bring nanoscale materials that much closer to reality. It is one of the fastest growing areas for research. Nanocomposite materials are helping improve products that we use every day and creating new, exciting products for the future. Composites and nanocomposites composed of reinforcements, nano-reinforcements, and matrices are well-known engineering materials. Keeping in mind the advantages of composite and nanocomposite materials, this book covers fundamental effects, product development, properties, and applications of the materials including material chemistry, designing, and manufacturing. The book also summarizes the recent developments made in the area of advanced composite and nanocomposite materials. A number of critical issues and suggestions for future work are discussed, underscoring the roles of researchers for the efficient development of composites and nanocomposites through value additions to enhance their use.

Download or read book Carbon Based Nanomaterials for Advanced Thermal and Electrochemical Energy Storage and Conversion written by Rajib Paul and published by Elsevier. This book was released on 2019-07-20 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Based Nanomaterials for Advanced Thermal and Electrochemical Energy Storage and Conversion presents a comprehensive overview of recent theoretical and experimental developments and prospects on carbon-based nanomaterials for thermal, solar and electrochemical energy conversion, along with their storage applications for both laboratory and industrial perspectives. Large growth in human populations has led to seminal growth in global energy consumption, hence fossil fuel usage has increased, as have unwanted greenhouse gases, including carbon dioxide, which results in critical environmental concerns. This book discusses this growing problem, aligning carbon nanomaterials as a solution because of their structural diversity and electronic, thermal and mechanical properties. - Provides an overview on state-of-the-art carbon nanomaterials and key requirements for applications of carbon materials towards efficient energy storage and conversion - Presents an updated and comprehensive review of recent work and the theoretical aspects on electrochemistry - Includes discussions on the industrial production of carbon-based materials for energy applications, along with insights from industrial experts

Download or read book Low dimensional Chalcogenide Based Thermoelectric Composites written by Chaochao Dun and published by . This book was released on 2017 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: By using the hydrothermal reflux method, a series of low-dimensional chalcogenide nanostructures were designed. On one hand, ternary metal (Bi, Cu, Ag, and Pb) chalcogenide nanowires with high thermoelectric figure of merit and power factors were obtained by using Te1-[subscript x]Se[subscript x] alloys as templates. On the other hand, Bi2Se3, Bi2Te3, Sb2Te3 nanoplates and their derivatives were also successfully fabricated. After nanostructures were obtained, we further combine them with polymers such as polyvinylidene fluoride to guarantee their flexibility in thermoelectric devices. Here, the non-conductive polymer can not only guarantee the robustness and flexibility but also create a high trap-state by introducing the energy barrier at the organic/inorganic interface, thus a high level of Seebeck coefficient is maintained while a remarkable improvement on electrical conductivity was achieved. To our best knowledge, we are the first group developing the flexible and freestanding thermoelectric generators based on inorganic chalcogenides nanomaterials. Different morphologies of chalcogenide nanoplates can be well controlled: For example, with different supersaturation status, the growth mode of Sb2Te3 nanoplates can be changed from layer by layer to spiral growth. Surface modification and nanoengineering is utilized, like putting metal ions in the interlayer of n-type Bi2Se3 by taking advantage of its interlayer gaps, or growing self-assembled metal nanoparticles (Ag or Cu) on the lateral edges of n-type Bi2Te3 and p-type Sb2Te3 nanoplates by using their active edges. Unlike any previous studies involved in inorganic systems, the Seebeck coefficient and electrical conductivity can increase in parallel with the introduced self-assembled heterojunction architectures because of the optimized electron and phonon transport behavior. This is one of the exciting achievements we have done in our lab to potentially change the thermoelectrics field.

Download or read book Advances in Nanostructured Composites written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2019-04-30 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites and nanocomposites are used in cases where long durability and strength of components are required; i.e., where high stress levels, erosion processes and multiphase environments are present, including the parts under collision and impact, the parts under rotating motion and erosion (like excavation drills in oil and gas wells). The first volume of this book aims to provide a guide for fabrication of new nanocomposites mainly based on carbon nanotubes and graphene. The main topics of this volume are: Application of Nano-powders for Formation of Metal Matrix of Composites, Conjugated Polymer Nanocomposites, Biopolymer Nanocomposites, Dental Nanocomposites, Graphene-based Nanocomposites for Electrochemical Energy Storage, Polymer/Filler Composites for Optical Diffuse Reflectors, Synthesis and Applications of LDH-Based Nanocomposites, Rubber—CNT Nanocomposites, Nanocomposite Fibers with Carbon Nanotubes, Fabrications of Graphene Based Nanocomposites for Electrochemical Sensing of Drug Molecules, Recent Advances in Graphene Metal Oxide Based Nanocomposites.

Download or read book Advances in Nanostructured Materials and Nanopatterning Technologies written by Vincenzo Guarino and published by Elsevier. This book was released on 2020-02-11 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Nanostructured Materials and Nanopatterning Technologies: Applications for Healthcare, Environment and Energy demonstrates how to apply micro- and nanofabrication and bioextrusion based systems for cell printing, electrophoretic deposition, antimicrobial applications, and nanoparticles technologies for use in a range of green industry sectors, with an emphasis on emerging applications. - Details strategies to design and realize smart nanostructured/patterned substrates for healthcare and energy and environmental applications - Enables the preparation, characterization and fundamental understanding of nanostructured materials for promising applications in health, environmental and energy related sectors - Provides a broader view of the context around existing projects and techniques, including discussions on potential new routes for fabrication

Download or read book Novel Carbon Materials and Composites written by Xin Jiang and published by John Wiley & Sons. This book was released on 2019-03-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connects knowledge about synthesis, properties, and applications of novel carbon materials and carbon-based composites This book provides readers with new knowledge on the synthesis, properties, and applications of novel carbon materials and carbon-based composites, including thin films of silicon carbide, carbon nitrite, and their related composites. It examines the direct bottom-up synthesis of the carbon-based composite systems and their potential applications, and discusses the growth mechanism of the composite structures. It features applications that range from mechanical, electronic, chemical, biochemical, medical, and environmental to functional devices. Novel Carbon Materials and Composites: Synthesis, Properties and Applications covers an overview of the synthesis, properties, and applications of novel carbon materials and composites. Especially, it covers everything from chemical vapor deposition of silicon carbide films and their electrochemical applications to applications of various novel carbon materials for the construction of supercapacitors to chemical vapor deposition of diamond/silicon carbide composite films to the covering and fabrication processes of nanodot composites. Looks at the recent progress and achievements in the fields of novel carbon materials and composites, including thin films of silicon carbide, carbon nitrite, and their related composites Discusses the many applications of carbon materials and composites Focuses on the hot topic of the fabrication of carbon-based composite materials and their abilities to extend the potential applications of carbon materials Published as a title in the new Wiley book series Nanocarbon Chemistry and Interfaces. Novel Carbon Materials and Composites: Synthesis, Properties and Applications is an important book for academic researchers and industrial scientists working in the fabrication and application of carbon materials and carbon-based composite materials and related fields.

Download or read book Carbon Based Smart Materials written by Constantinos A. Charitidis and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-04-20 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents technologies and key concepts to produce suitable smart materials and intelligent structures for sensing, information and communication technology, biomedical applications (drug delivery, hyperthermia therapy), self-healing, flexible memories and construction technologies. Novel developments of environmental friendly, cost-effective and scalable production processes are discussed by experts in the field.

Download or read book Fundamentals of Conjugated Polymer Blends Copolymers and Composites written by Parveen Saini and published by John Wiley & Sons. This book was released on 2015-04-30 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their discovery in 1977, the evolution of conducting polymers has revolutionized modern science and technology. These polymers enjoy a special status in the area of materials science yet they are not as popular among young readers or common people when compared to other materials like metals, paper, plastics, rubber, textiles, ceramics and composites like concrete. Most importantly, much of the available literature in the form of papers, specific review articles and books is targeted either at advanced readers (scientists / technologists / engineers / senior academicians) or for those who are already familiar with the topic (doctoral / postdoctoral scholars). For a beginner or even school / college students, such compilations are bit difficult to access / digest. In fact, they need proper introduction to the topic of conducting polymers including their discovery, preparation, properties, applications and societal impact, using suitable examples and already known principles/knowledge/phenomenon. Further, active participation of readers in terms of "question & answers", "fill-in-the-blanks", "numerical" along with suitable answer key is necessary to maintain the interest and to initiate the "thought process". The readers also need to know about the drawbacks and any hazards of such materials. Therefore, I believe that a comprehensive source on the science / technology of conducting polymers which maintains a link between grass root fundamentals and state-of-the-art R&D is still missing from the open literature.

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 Two Dimensional Nanostructures for Energy Related Applications written by Kuan Yew Cheong and published by CRC Press. This book was released on 2017-03-27 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book focuses on the latest advances and development of utilizing two-dimensional nanostructures for energy and its related applications. Traditionally, the geometry of this material refers to "thin film" or "coating." The book covers three main parts, beginning with synthesis, processing, and property of two-dimensional nanostructures for active and passive layers followed by topics on characterization of the materials. It concludes with topics relating to utilization of the materials for usage in devises for energy and its related applications.

Download or read book Handbook of Carbon Based Nanomaterials written by Sabu Thomas and published by Elsevier. This book was released on 2021-07-23 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Carbon-Based Nanomaterials provides a comprehensive overview of carbon-based nanomaterials and recent advances in these specialized materials. This book opens with a brief introduction to carbon, including the different forms of carbon and their range of uses. Each chapter systematically covers a different type of carbon-based nanomaterial, including its individual characteristics, synthesis techniques and applications in industry, biomedicine and research. This book offers a broad handbook on carbon-based nanomaterials, detailing the materials aspects, applications and recent advances of this expansive topic. With its global team of contributing authors, Handbook of Carbon-Based Nanomaterials collates specific technical expertise from around the world, for each type of carbon-based nanomaterial. Due to the broad nature of the coverage, this book will be useful to an interdisciplinary readership, including researchers in academia and industry in the fields of materials science, engineering, chemistry, energy and biomedical engineering. - Covers a range of carbon-based nanomaterials, including graphene, fullerenes and much more - Describes key properties, synthesis techniques and characterization of each carbon-based nanomaterial - Discusses a range of applications of carbon-based nanomaterials, from biomedicine to energy applications