Download or read book Synthesis and Mechanical Characterization of One dimensional Nanostructures written by Huan Zhang and published by . This book was released on 2012 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Characterization of One dimensional Nanostructures by Nanoindentation and Set up of a Nanomanipulator Inside a Scanning Electron Microscope written by Youfei Jiang and published by . This book was released on 2011 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional (ID) nanostructures have attracted considerable interests in the last two decades because of their exceptional physical, chemical, and electrical properties, as well as potential applications in materials reinforcement, sensors, and nanoelectronics. Many ID nanostructures have been synthesized, such as nanotubes, nanowires, nanobelts, and nanorods. It is important to understand the mechanical characteristics of these nanostructures prior to their future applications.Nanoindentation is now commonly used to characterize mechanical properties of materials in the nanometer scale. A series of experiments on different types of substrates were conducted to understand the nanoindenter and its software, and also to study some limitations of machine and its influential effects. Indentations less than 20 nanometers in depth were performed on boron platelets to measure their Young's moduli.Alternative mechanical characterization methods, such as tensile and resonance vibration testing, can also be used to provide a measure of mechanical properties of 1D nanostructures. A nanomanipulator is necessary if these mechanical testing methods are to be carried out. A home-built nanomanipulator was developed inside a scanning electron microscope (SEM). The performance of nanomanipulator system and its basic functions were studied.
Download or read book Electronic Optical and Mechanical Characterization of Zero and One Dimensional Nanostructures written by Chi-Nung Ni and published by . This book was released on 2008 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low dimensional nanostructures have drawn tremendous interest owing to their remarkable electrical, optical, and mechanical properties, which can be used for novel electronics, energy approaches, and size/power efficient applications. Examples include quantized electrical conduction in single molecules (zero-dimension)/ semiconducting nanotubes (one-dimension). Additionally, nanotubes have been shown to have high mechanical stiffness/resilience, anisotropic optical absorption due to their one-dimensional morphology. Such aspects were investigated in detail in this thesis. In Chapter 1, a brief introduction to molecular electronics and the properties of single molecules such as Mn12 Acetate, and linear structures such as carbon nanotubes and their applications are addressed. The quantized electrical transport behavior and its optical dependence, of Mn12 Acetate have been studied through novel electro-migration assisted nano-junctions in Chapter 2. In Chapter 3, a comprehensive study of the synthesis of carbon nanotubes (CNTs) using thermal chemical vapor deposition (TCVD) is presented. The characterization in terms of nanotube length and quality were compared, as a function of synthesis temperature, gas mixture, types of substrate, etc., and a growth mechanism was then determined. An improved synthesis procedure was successfully proposed based on the study. In Chapter 4, the electrical transport behavior of SWCNTs, functionalized with different molecules (e.g., dodecyl, phenyl groups), were compared and investigated. The doping effects from those covalently bonded functional groups were manifested in the change in transport properties (e.g., p-, n-type, or metallic). The flexural rigidities (EIs) of MWCNT bundles were investigated through optical methods including laser transmission measurement and imaging techniques, in Chapter 5. The deflections of CNT bundles under fluid flow were monitored in situ and the flexural rigidities derived from the measured deflection through modified Stokes-Oseen formalisms. The potential of a CNT based gas flow sensor was demonstrated. In Chapter 6, the anisotropic optical absorption properties of MWCNTs were investigated and the absorption cross-sections, considering the misalignment of nanotube mats, were calculated and compared to those from SWCNTs. The nanotube diameter dependence of the optical absorption anisotropy was also studied. Chapter 7 summarizes the thesis.
Download or read book Two dimensional Materials written by Pramoda Kumar Nayak and published by BoD – Books on Demand. This book was released on 2016-08-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are only a few discoveries and new technologies in materials science that have the potential to dramatically alter and revolutionize our material world. Discovery of two-dimensional (2D) materials, the thinnest form of materials to ever occur in nature, is one of them. After isolation of graphene from graphite in 2004, a whole other class of atomically thin materials, dominated by surface effects and showing completely unexpected and extraordinary properties, has been created. This book provides a comprehensive view and state-of-the-art knowledge about 2D materials such as graphene, hexagonal boron nitride (h-BN), transition metal dichalcogenides (TMD) and so on. It consists of 11 chapters contributed by a team of experts in this exciting field and provides latest synthesis techniques of 2D materials, characterization and their potential applications in energy conservation, electronics, optoelectronics and biotechnology.
Download or read book Synthesis and Characterization of Functional One Dimensional Nanostructures written by Kwan Lee and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book One Dimensional Polymeric Nanocomposites written by Ram K. Gupta and published by CRC Press. This book was released on 2023-02-14 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional nanomaterials are emerging as promising materials for their many unique characteristics. This book covers their synthesis and applications in batteries, supercapacitors, fuel cells, solar cells, green energy production, flexible electronics, electrochemical sensors, and biomedicine. Progress in nanotechnology offers an opportunity to synthesize materials with unique properties. The properties of nanomaterials can be further improved by growing them in one-dimension structural with variations in their architecture. One-dimensional polymeric nanocomposites offer various advantages such as nano dimensions, high surface area, structural stability, and the ability to tune their electrochemical, electronic, and optical properties. The book covers basic concepts, chemistries, properties, and the importance of one-dimensional nanomaterials, along with their wide applications and state-of-the-art progress in the energy, flexible electronics, sensor, and biomedical fields. The fundamentals of electrochemical behavior and their understanding for various applications are also discussed in detail. This book will provide new direction to scientists, researchers, and students to better understand the chemistry, technologies, and applications of one-dimensional polymeric nanocomposites.
Download or read book Nanomaterials and Nanocomposites written by Visakh P. M. and published by John Wiley & Sons. This book was released on 2016-04-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials are defined as materials in which at least one length dimension is below 100 nanometers. In this size regime, these materials exhibit particular - and tunable - optical, electrical or mechanical properties that are not present at the macro-scale. This opens up the possibility for a plethora of applications at the interface of materials, chemistry, physics and biology, many of which have already entered the commercial realm. When nanomaterials are blended with other materials not necessarily in the nanometer regime, the resulting nanocomposites can exhibit dramatically different properties than the bulk material alone, leading to an enhanced performance in terms of, for example, increased thermal and mechanical stability. This book presents the synthesis, characterization and applications of nanomaterials and nanocomposites, covering zero-dimensional, elemental nanoparticles, one-dimensional materials such as nanorods and nanowhiskers, two-dimensional materials such as graphene and boron nitride as well as three-dimensional materials such as fullerenes, polyhedral oligomers and zeolites, complemented by bio-based nanomaterials, e.g., cellulose, chitin, starch and proteins. Introductory chapters on the state-of-the-art of nanomaterial research and the chemistry and physics in nanoscience and nanotechnology round off the book.
Download or read book Novel Synthesis and Characterization of Nanostructured Materials written by Annelise Kopp Alves and published by Springer Science & Business Media. This book was released on 2013-10-18 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials have been largely studied in the last few years. They have great potential of applications in different fields such as materials science, physics, chemistry, biology, mechanic and medicine. Synthesis and characterization of nanostructured materials is a subject of great interest involving science, market, politicians, government and society. Based on results obtained by the authors' research group during the past decade, this book comes to present novel techniques to synthesize nanostructured materials and characterize their properties such as crystallinity and crystallite size, specific surface area, particle size, morphology and catalytic activity. This book is aimed for students, researchers and engineers searching for methodologies to obtain and characterize nanostructures in details.
Download or read book Synthesis and Characterization of Boron based One dimensional Nanostructures written by Carolyn Jones Otten and published by . This book was released on 2004 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanostructures written by Thomas Tsakalakos and published by Springer Science & Business Media. This book was released on 2003-12-31 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inc., Portland, OR (booknews.com).
Download or read book One Dimensional Nanostructures written by Zhiming M Wang and published by Springer Science & Business Media. This book was released on 2008-07-20 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional (1D) nanostructures, including nanowires, nanotubes and quantum wires, have been regarded as the most promising building blocks for nanoscale electronic and optoelectronic devices. This book presents exciting, state-of-the-art developments in synthesis and properties of 1D nanostructures with many kinds of morphologies and compositions as well as their considerable impact on spintronics, information storage, and the design of field-effect transistors.
Download or read book Controllable Synthesis Structure and Property Modulation and Device Application of One dimensional Nanomaterials written by Yue Zhang and published by World Scientific. This book was released on 2012 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings present the latest achievements in one dimensional materials as presented at the 4th international conference on one-dimensional nanomaterials. The scope of the proceedings covers the inventions in controllable synthesis, structure and property characterizations, nanodamage, modeling and simulation, device fabrication and novel applications of 1D nanomaterials, such as electro-optical devices, electro-mechanical devices, bio-sensors and solar cells, etc.
Download or read book Synthesis Characterization and Properties of Nanostructures written by Prafulla K. Jha and published by Trans Tech Publications Ltd. This book was released on 2009-05-14 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reducing the dimensions of contiguous matter, down to the nanometer scale, confines the electronic and vibrational wavefunctions and results in unique properties which open up a wide vista of potential applications in optics, mechanics, electrical engineering, magnetic devices, catalysis and biomedicine. Nanostructures, characterized by having at least one dimension in the nanometer range, are considered to be a bridge between single molecules and their bulk counterparts. The challenge for nanotechnology is to achieve perfect control of the nanoscale-related properties; which obviously requires correlating the parameters of synthesis with the resultant nanostructures. Nanostructures are also ideal subjects for computer simulation and modeling: in computations related to nanomaterials, one deals with a spatial scaling ranging from a few nanometers to a few micrometers and a time-scaling ranging from a few femto-seconds (fs) to 1 second - with a limit of accuracy better than 1 kcal mol-1.
Download or read book One Dimensional Nanostructures written by Tianyou Zhai and published by John Wiley & Sons. This book was released on 2012-10-19 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the latest research breakthroughs and applications Since the discovery of carbon nanotubes in 1991, one-dimensional nanostructures have been at the forefront of nanotechnology research, promising to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. With contributions from 68 leading international experts, this book reviews both the underlying principles as well as the latest discoveries and applications in the field, presenting the state of the technology. Readers will find expert coverage of all major classes of one-dimensional nanostructures, including carbon nanotubes, semiconductor nanowires, organic molecule nanostructures, polymer nanofibers, peptide nanostructures, and supramolecular nanostructures. Moreover, the book offers unique insights into the future of one-dimensional nanostructures, with expert forecasts of new research breakthroughs and applications. One-Dimensional Nanostructures collects and analyzes a wealth of key research findings and applications, with detailed coverage of: Synthesis Properties Energy applications Photonics and optoelectronics applications Sensing, plasmonics, electronics, and biosciences applications Practical case studies demonstrate how the latest applications work. Tables throughout the book summarize key information, and diagrams enable readers to grasp complex concepts and designs. References at the end of each chapter serve as a gateway to the literature in the field. With its clear explanations of the underlying principles of one-dimensional nanostructures, this book is ideal for students, researchers, and academics in chemistry, physics, materials science, and engineering. Moreover, One-Dimensional Nanostructures will help readers advance their own investigations in order to develop the next generation of applications.
Download or read book Controlled Synthesis and Characterization of One Dimensional Nanomaterials written by Hao Liu and published by . This book was released on 2010 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of One Dimensional Carbon Nanostructures written by Ravindra Rajarao and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of carbon nanotubes by Sumio Iijima, an intensive research on carbon materials has been carried out. Carbon nanotubes and carbon nanofibers have drawn much attention due to their electronic and mechanical properties. However, because of low production capacity and high production costs at present, their applications cannot be extended until large-scale production is realized. Among the many synthetic methods, chemical vapor deposition method has advantages of high yield, high selectivity and low cost over traditional physical ones such as laser ablation and arc-discharge. High yield synthesis of one dimensional carbon nanostructures is essential for applications. In this book, an economical and environmental friendly route for the scalable production of CNTs and CNFs on easy soluble support has been discussed. The use of synthesized carbon nanotubes as catalyst support for oxidation of alcohols by Schiff base complexes and also as hydrogen storage materials is discussed in detail.
Download or read book Synthesis and Characterization of One and Two dimensional Novel Nanomaterials written by Yu Zhong (Ph.D.) and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials have attracted extensive interest due to their unique structure and excellent properties compared with their bulk counterparts. To obtain nanodevices with controlled properties, it is prerequisite to synthesize nanostructured materials with designed architecture. In this work, low (one- and two- ) dimensional nanomaterials with controlled structures have been synthesized and characterized based on chemical vapour deposition strategy. Our research targets cover one-dimensinoal hollow, solid, and solid @ hollow heterostructural nanomaterials including carbon nanotubes (CNTs), nitrogen-doped carbon nanotubes (NCNTs), SnO2 nanowires, Mo doped-SnO2 nanowires, Sn nanowires encapsulated in CNTs (Sn@CNTs), and two-dimensional Mo2S3 nanopetals. Dependence of product morphology, composition and phase structure on the synthesis conditions has been systematically investigated by changing temperature, growth time, gas flow, external atom doping, catalyst and employed substrate, to get insight into the correlation between the structure control and growth conditions of the products and their growth mechanism as well. High quality CNTs and NCNTs with uniform size were synthesized on carbon paper and Si wafer by introducing thin iron sputtering film as catalyst. High nitrogen content up to 10.4 at% was reached in the NCNTs. Controlled growth of SnO2 and Mo-doped SnO2 nanowires was obtained on different substrates including carbon paper, stainless steel and Cu to meet substrate requirements for practical applications. It was found that Mo doping could significantly improve the corrosion resistance of the SnO2 nanowires. Core-shell heterostructures of Sn nanowires @ CNTs were produced on carbon microfibers, stainless steel and Cu substrates. Rational control on the thickness and nature of the carbon shell of the heterostructures on carbon microfibers was realized by modulating growth parameters and introducing extra catalyst. Multi-generation Sn@CNTs were obtained by exploring SnO and SnO2 as starting materials. On the metallic substrates, Sn-alloy@CNT nanostructures were obtained. In another way, SnCo alloy nanowires @ CNTs with readily controlled Co content were achieved by introducing cobalt-contained precursor. Non-catalytic and catalytic growth of two-dimensional Mo2S3 nanopetals was investigated on carbon microfibers. Without catalyst, the nanopetals with high density were only obtained in a narrow range of the precursor concentration. With Au catalyst, uniform nanopetals with steady high density could be achieved in a wide range of the precursor concentration. Morphology, composition and phase structure of the nanostructures were characterized and analyzed by electron microscopy, X-ray diffraction, energy-dispersed spectroscopy and Raman spectroscopy.
