Download or read book Electron Spin Properties of Carbon Based Nanomaterials written by Mujtaba Zaka and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The successful utilization of carbon nanomaterials in future electron spin-based technologies is highly dependent upon the ability to control their assembly at the nanoscale to form tailored solid-state architectures. Spin active metallofullerenes (MFs), Sc@C82 and La@C82, can be self assembled in 3D fullerene crystals or inside a carbon nanotube to form peapod structures. Single walled carbon nanotubes (SWCNTs) are an architect material to potentially allow the formation of 1-D spin chains. SWCNTs should be optimised to allow formation of spin chains and free of magnetic catalyst and carbon impurities, which have previously limited investigations of SWCNT spin properties. To address this, SWCNTs produced by laser ablation with a non-magnetic PtRhRe catalyst were purified through a multiple step centrifugation process in order to remove amorphous carbon and catalyst impurities. Centrifugation of SWCNT solutions resulted in sedimentation of carbon nanotube bundles containing clusters of catalyst particles, while isolated nanotubes with reduced catalyst particle content remained in the supernatant. Electron paramagnetic resonance (EPR) signals were detected only for samples which contained catalyst particles, with the ultracentrifuged SWCNTs showing no EPR signal at X-band (9.4 GHz) and fields ≤0.4 T. Integration of MFs into future devices requires a clear understanding of the nature of the spin and spin-spin interactions. Evaluating the spin properties of MFs, in both 3D (crystals) and 1D (peapods), will identify the spin-spin interactions and the affect of the surrounding SWCNT. Diluting spin active Sc@C82 and La@C82 MFs in a diamagnetic C60 matrix, between 0.4% and 100%, permitted the tuning of the mean fullerene separation and thus interfullerene spin interactions. In dilute concentrations of MFs the hyper ne structure was resolved in EPR and with increasing concentration exchange narrowing was observed as a single narrow EPR peak.
Download or read book Electron Paramagnetic Resonance in Modern Carbon Based Nanomaterials written by Dariya Savchenko and published by Bentham Science Publishers. This book was released on 2018-06-05 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents information about several topics in the field of electron paramagnetic resonance (EPR) study of carbon-containing nanomaterials. It introduces the reader to an array of experimental and theoretical approaches for the analysis of paramagnetic centers (dangling bonds, interface defects, vacancies, and impurities) usually observed in modern carbon-containing materials such as nanographites, graphene, disordered onion-like carbon nanospheres (DOLCNS), single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNT), graphene oxide (GO), reduced graphene oxide (rGO), nanodiamonds, silicon carbonitride (SiCN) and silicon carbide (SiC) based composites and thin films. In particular, the book describes in detail: • The fundamentals of EPR spectroscopy and its application to the carbon-containing materials; • The resolution of the EPR signals from different species in carbon materials; • EPR characterization of spin dynamics in carbon nanomaterials; • Magnetic properties of DWCNTs and MWCNTs polymer composites; • EPR investigations on GO, rGO and CNTs with different chemical functionalities; • EPR spectroscopy of semiconducting SWCNTs thin films and their transistors; • In-situ EPR investigations of the oxygenation processes in coal and graphene materials; • The two-temperature EPR measurement method applied to carbonaceous solids; • Characterization of impurities in nanodiamonds and SiC nanomaterials and related size effects by CW and pulse EPR techniques; • Application of multifrequency EPR to the study of paramagnetic defects in a-Si1-xCx:H thin films and a-SiCxNy based composites. This volume is a useful guide for researchers interested in the EPR study of paramagnetic centers in the carbon-containing thin films, nanomaterials, ceramics, etc. It is also a valuable teaching tool at graduate and postgraduate levels for advanced courses in analytical chemistry, applied sciences and spectroscopy.
Download or read book Magnetism and Spintronics in Carbon and Carbon Nanostructured Materials written by Sekhar Chandra Ray and published by Elsevier. This book was released on 2020-01-15 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetism and Spintronics in Carbon and Carbon Nanostructured Materials offers coverage of electronic structure, magnetic properties and their spin injection, and the transport properties of DLC, graphene, graphene oxide, carbon nanotubes, fullerenes, and their different composite materials. This book is a valuable resource for those doing research or working with carbon and carbon-related nanostructured materials for electronic and magnetic devices. Carbon-based nanomaterials are promising for spintronic applications because their weak spin-orbit (SO) coupling and hyperfine interaction in carbon atoms entail exceptionally long spin diffusion lengths (~100μm) in carbon nanotubes and graphene. The exceptional electronic and transport features of carbon nanomaterials could be exploited to build multifunctional spintronic devices. However, a large spin diffusion length comes at the price of small SO coupling, which limits the possibility of manipulating electrons via an external applied field. Assesses the relative utility of a variety of carbon-based nanomaterials for spintronics applications Analyzes the specific properties that make carbon and carbon nanostructured materials optimal for spintronics and magnetic applications Discusses the major challenges to using carbon nanostructured materials as magnetic agents on a mass scale
Download or read book Carbon Based Nanomaterials written by Nasar Ali and published by Trans Tech Publications Ltd. This book was released on 2010-02-25 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters BCI (WoS). Carbon is an essential constituent element of all living organisms. A unique feature of carbon is the variety of forms that it can assume when two or more atoms bond. Carbon has thus attracted, and continues to attract, considerable R&D interest from researchers all over the world. The use of carbon in nanotechnology is a very promising area of research, and considerable government funding is being invested in carbon nanotechnology research.
Download or read book Electron Paramagnetic Resonance in Modern Carbon Based Nanomaterials written by Dariya Savchenko and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents information about several topics in the field of electron paramagnetic resonance (EPR) study of carbon-containing nanomaterials. It introduces the reader to an array of experimental and theoretical approaches for the analysis of paramagnetic centers (dangling bonds, interface defects, vacancies, and impurities) usually observed in modern carbon-containing materials such as nanographites, graphene, disordered onion-like carbon nanospheres (DOLCNS), single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNT), graphene oxide (GO), reduced graphene oxide (rGO), nanodiamonds, silicon carbonitride (SiCN) and silicon carbide (SiC) based composites and thin films. In particular, the book describes in detail: The fundamentals of EPR spectroscopy and its application to the carbon-containing materials; The resolution of the EPR signals from different species in carbon materials; EPR characterization of spin dynamics in carbon nanomaterials; Magnetic properties of DWCNTs and MWCNTs polymer composites; EPR investigations on GO, rGO and CNTs with different chemical functionalities; EPR spectroscopy of semiconducting SWCNTs thin films and their transistors; In-situ EPR investigations of the oxygenation processes in coal and graphene materials; The two-temperature EPR measurement method applied to carbonaceous solids; Characterization of impurities in nanodiamonds and SiC nanomaterials and related size effects by CW and pulse EPR techniques; Application of multifrequency EPR to the study of paramagnetic defects in a-Si1-xCx:H thin films and a-SiCxNy based composites. This volume is a useful guide for researchers interested in the EPR study of paramagnetic centers in the carbon-containing thin films, nanomaterials, ceramics, etc. It is also a valuable teaching tool at graduate and postgraduate levels for advanced courses in analytical chemistry, applied sciences and spectroscopy. [Series description]: This series brings reference works and monographs on topics related to analytical methods employing different modes of magnetic resonance spectroscopy. Contributions are written by eminent scholars. Volumes in this series are suitable for researchers and teachers involved in advanced courses in analytical techniques, applied sciences and condensed matter physics.
Download or read book Introduction to Graphene Based Nanomaterials written by Luis E. F. Foa Torres and published by Cambridge University Press. This book was released on 2014-01-23 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed primer describing the most effective theoretical and computational methods and tools for simulating graphene-based systems.
Download or read book Graphene and Related Nanomaterials written by Paolo Bondavalli and published by Elsevier. This book was released on 2017-10-26 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene and Related Nanomaterials: Properties and Applications outlines the physics and the applications of graphene-related materials, including graphene, graphene oxide and carbon nanotubes. The first chapter introduces the physics of graphene and related nanomaterials. The following sections deal with different applications spanning from gas sensors to non-volatile memories and supercapacitors. The book also covers spintronics for graphene. In each chapter, specific applications are explained in a detailed way. This book will appeal to materials scientists and engineers looking to understand more about the nature of graphene and how it is currently being used. Explains how particular physical properties of graphene make it suitable for specific applications Explores current applications in sensing and energy Assesses the challenges of using carbon nanomaterials in engineering and evaluates future opportunities Appeals to materials scientists and engineers looking to understand more about the nature of graphene and how it is currently being used
Download or read book Carbon based Nanomaterials and Hybrids written by Hans J. Fecht and published by CRC Press. This book was released on 2016-04-19 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades nanotechnology has developed into a highly multidisciplinary topic, drawing from a number of fields such as physics, materials science, biomedicine, and different engineering disciplines. The success of nanoscience- and nanotechnology-related research and products is connected with the technological exploitation of size effects in
Download or read book Carbon Based Nanoelectromagnetics written by Antonio Maffucci and published by Elsevier. This book was released on 2019-06-08 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-Based Nanoelectromagnetics provides detailed insights into the electromagnetic interactions of carbon-based nanostructured materials such as graphene and carbon nanotubes. Chapters within the book offer a comprehensive overview on this discipline, starting with an introduction to the field-matter interaction, its features, and finally, its applications in microwave, THz and optical frequency ranges. Electromagnetics at the nanoscale level has become a major research area in recent years as the synthesis of a variety of carbon-based nanostructures has progressed dramatically, thus opening the era of nanoelectronics and nanophotonics. To meet the challenges of these new fields, a thorough knowledge is required of the peculiar properties of the electromagnetic field. The novel behavior of the electromagnetic fields interacting with nano-sized elements and nano-structured has motivated the birth of this new research discipline, ‘Nanoelectromagnetics’. Presents a one-stop resource that explores the emerging field of nanoelectromagnetics Focuses on modeling, simulation, analysis, design and characterization, with an emphasis on applications of nanoelectromagnetics Explores the optical properties and applications of a range of carbon-based nanomaterials
Download or read book Carbon Nanotubes and Graphene written by Kazuyoshi Tanaka and published by Newnes. This book was released on 2014-07-10 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanotubes and Graphene is a timely second edition of the original Science and Technology of Carbon Nanotubes. Updated to include expanded coverage of the preparation, purification, structural characterization, and common application areas of single- and multi-walled CNT structures, this work compares, contrasts, and, where appropriate, unitizes CNT to graphene. This much expanded second edition reference supports knowledge discovery, production of impactful carbon research, encourages transition between research fields, and aids the formation of emergent applications. New chapters encompass recent developments in the theoretical treatments of electronic and vibrational structures, and magnetic, optical, and electrical solid-state properties, providing a vital base to research. Current and potential applications of both materials, including the prospect for large-scale synthesis of graphene, biological structures, and flexible electronics, are also critically discussed. Updated discussion of properties, structure, and morphology of biological and flexible electronic applications aids fundamental knowledge discovery Innovative parallel focus on nanotubes and graphene enables you to learn from the successes and failures of, respectively, mature and emergent partner research disciplines High-quality figures and tables on physical and mathematical applications expertly summarize key information – essential if you need quick, critically relevant data
Download or read book Physical Properties of Ceramic and Carbon Nanoscale Structures written by Stefano Bellucci and published by Springer Science & Business Media. This book was released on 2011-02-28 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume in a series of books on selected topics in Nanoscale Science and Technology based on lectures given at the well-known INFN schools of the same name. The aim of this collection is to provide a reference corpus of suitable, introductory material to relevant subfields, as they mature over time, by gathering the significantly expanded and edited versions of tutorial lectures, given over the years by internationally known experts. The present set of notes stems in particular from the participation and dedication of prestigious lecturers, such as Andrzej Huczko, Nicola Pugno, Alexander Malesevic, Pasquale Onorato and Stefano Bellucci. All lectures were subsequently carefully edited and reworked, taking into account the extensive follow-up discussions. A tutorial lecture by Huczko et al. shows how a variety of carbon and ceramic nanostructures (nanotubes, nanowires, nanofibres, nanorods, and nanoencapsulates) have in particular great potential for improving our understanding of the fundamental concepts of the roles of both dimensionality and size on physical material properties . Bellucci and Onorato provide an extensive and tutorial review of the (quantum) transport properties in carbon nanotubes, encompassing a description of the electronic structure from graphene to single-wall nanotubes, as well as a discussion of experimental evidence of superconductivity in carbon nanotubes and the corresponding theoretical interpretation. In the first contribution by Pugno, new ideas on how to design futuristic self-cleaning, super-adhesive and releasable hierarchical smart materials are presented. He also reviews the mechanical strength of such nanotubes and megacables, with an eye to the visionary project of a carbon nanotube-based ‘space elevator megacable’. In his second contribution, Pugno outlines in detail the role on the fracture strength of thermodynamically unavoidable atomistic defects with different size and shape, both numerically and theoretically, for nanotubes and nanotube bundles. Focusing on graphitic allotropes, the chapter by Bellucci and Malesevic aims to give a taste of the widespread implications carbon nanostructures have on research and applications, starting from an historical overview, followed by a discussion of the structure and physical properties of carbon nanotubes and graphene, in particular in the context of the several different synthesis techniques presently available.
Download or read book Carbon Based Nanomaterials 3 0 written by Ana María Díez-Pascual and published by Mdpi AG. This book was released on 2023-01-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-based nanomaterials are incredible tools with exceptional properties (high mechanical strength, high conductivity, attractive optical properties, chemical versatility, etc.). Among them, graphene and carbon nanotubes are the most frequently used from a practical viewpoint. These carbon nanomaterials can be synthesized by several methods, including top-down and bottom-up approaches. Their characterization via Raman spectroscopy, electron microscopy and atomic force microscopy is essential to correlate their structure with their properties in order to use them for specific applications. They show a brilliant future that is envisaged in the current reprint, which provides selected examples of the most recent advances in the preparation and characterization of carbon nanotube and graphene-based nanomaterials for a variety of applications.
Download or read book Introduction to Graphene Based Nanomaterials written by Luis E. F. Foa Torres and published by Cambridge University Press. This book was released on 2014-01-23 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with an introduction to carbon-based nanomaterials, their electronic properties, and general concepts in quantum transport, this detailed primer describes the most effective theoretical and computational methods and tools for simulating the electronic structure and transport properties of graphene-based systems. Transport concepts are clearly presented through simple models, enabling comparison with analytical treatments, and multiscale quantum transport methodologies are introduced and developed in a straightforward way, demonstrating a range of methods for tackling the modelling of defects and impurities in more complex graphene-based materials. The authors also discuss the practical applications of this revolutionary nanomaterial, contemporary challenges in theory and simulation, and long-term perspectives. Containing numerous problems for solution, real-life examples of current research, and accompanied online by further exercises, solutions and computational codes, this is the perfect introductory resource for graduate students and researchers in nanoscience and nanotechnology, condensed matter physics, materials science and nanoelectronics.
Download or read book Handbook of Advanced Ceramics written by E. Gracia-Espino and published by Elsevier Inc. Chapters. This book was released on 2013-04-11 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Properties and Applications of Ultrananocrystalline Diamond written by Dieter M. Gruen and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are pleased to present the Proceedings of the NATO Advanced Research Workshop “Syntheses, Properties and Applications of Ultrananocrystalline Diamond” which was held June 7-10, 2004 in St. Petersburg, Russia. The main goal of the Workshop was to provide a forum for the intensive exchange of opinions between scientists from Russia and NATO countries in order to give additional impetus to the development of the science and applications of a new carbon nanostructure, called ultrananocrystalline diamond (UNCD) composed of 2-5 nm crystallites. There are two forms of UNCD, dispersed particles and films. The two communities of researchers working on these two forms of UNCD have hitherto lacked a common forum in which to explore areas of scientific and technological overlap. As a consequence, the two fields have up to now developed independently of each other. The time had clearly come to remedy this situation in order to be able to take full advantage of the enormous potential for societal benefits to be derived from exploiting the synergistic relationships between UNCD dispersed particulates and UNCD films. The NATO sponsored ARW therefore occurred in a very timely manner and was successful in beginning the desired dialogue, a precondition for making progress toward the above stated goal. The discovery of UNCD completes a triadof nanostructured carbonswhich includes fullerenes and nanotubes.
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
Download or read book Carbon Based Nanomaterials for Energy Conversion and Storage written by Jia-Nan Zhang and published by Springer Nature. This book was released on 2022-08-26 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically summarizes the advanced development of carbon-based nanomaterials for electrochemical catalysis, and it is comprised of four sections. The first section discusses about the fundamental synthesis, characterization techniques, and catalytic effects on the energy conversion and storage mechanism. The second section elaborately reviews various types of electrocatalytic reactions on carbon-based materials and their performance. The third section focuses on batteries about carbon-based materials with different storage mechanism. And the last one, the following enlightenment in terms of theoretical development and experimental research is provided to the general readers: 1) Precise design and construction of local atomic and electronic structures at the interface of catalysts; 2) Selective activation and directed conversion of carbon-based energy-carrying molecules at the interface; 3) Interaction mechanism and regulation of catalyst solid surface interface properties under environment and external field. This book will be useful for researchers and students who are interested in carbon-based nanomaterials, electrochemical catalysts and energy storage.
