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EBookClubs

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Book Multi scale Simulations of Single walled Carbon Nanotube Atomic Force Microscopy and Density Functional Theory Characterization of Functionalized and Non functionalized Silicon Surfaces

Download or read book Multi scale Simulations of Single walled Carbon Nanotube Atomic Force Microscopy and Density Functional Theory Characterization of Functionalized and Non functionalized Silicon Surfaces written by Santiago de Jesus Solares Rivera and published by . This book was released on 2006 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Carbon Nanofibers

Download or read book Carbon Nanofibers written by Madhuri Sharon and published by John Wiley & Sons. This book was released on 2021-02-09 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamentals and applications of Carbon Nanofiber (CNF). In the first section, the initial chapter on the fundamentals of CNF is by Professor Maheshwar Sharon, the recognized “Father of Carbon Nanotechnology in India”, which powerfully provides a succinct overview of CNFs. This is followed by a chapter on biogenics that have produced unique morphologies of CNF that makes them suitable to various applications. This is followed by a chapter that mainly focuses on nanocomposites, especially those involving nanocomposites of CNF. The role of nanocatalysts and composites in promoting and enhancing the synthesis and application of CNF is then covered, followed by an important chapter on the characterization of CNF. The second section of the book encompasses the various applications of CNF, such as its use as a possible superconductor to adsorb and store hydrogen, and as a microwave absorber. The application of CNF for environmental concerns is also detailed by assessing its usefulness in dye and heavy metal removal from polluted water. The applications that are addressed include lithium-ion battery, solar cell, antenna, cosmetics, usefulness in regenerative medicine, as well as various aspects of agrotechnology.

Book Optical Characterization of Carbon Nanotube Forests

Download or read book Optical Characterization of Carbon Nanotube Forests written by Brian D. Wood and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotube forests are vertically grown tubular formations of graphene. Samples were grown with an injection chemical vapor deposition method on substrates of silicon with various deposited layers and bare fused silica. The morphology of the forest is characterized by the height, density, and presence of defects. Total diffuse reflectance and transmittance measurements were taken in the 2-16 +̧−7m spectral range and correlated to the forest0́9s specific morphology. From these correlations, the conditions necessary to maximize the absorption of the forest were found and exploited to cater sample growth for specific substrates to make ideal absorbers. From the transmittance data, the absorption coefficient is found via Beer-Lambert0́9s Law and also correlated to sample morphology, giving us an indication of the height of the forest needed for ideal absorption. Two models were used to attempt to reproduce the experimental absorption coefficient: an effective medium theory using a Maxwell Garnett approximation and by treating the carbon nanotube forest as an effective cylindrical waveguide with walls of graphite. Each model leads to a set of fitting parameters providing a better physical understanding of the forests. It was found that the effective medium theory gave results loosely corroborated with electron microscopy, but had trouble fitting the experimental data, and the index of refraction it provides does not behave like a unified medium. The waveguide model fits the data well, but it requires more experimental evidence to be more conclusive. The theoretical models need more work, but fabrication of ideal absorbers has been achieved on various substrates providing framework for their usage in radiometry and spectroscopy

Book Surface Characterization of Carbon Fibers by Atomic Force Microscopy

Download or read book Surface Characterization of Carbon Fibers by Atomic Force Microscopy written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Carbon Nanotube Atomic Force Microscopy

Download or read book Carbon Nanotube Atomic Force Microscopy written by Stewart Antoni Michael Carnally and published by . This book was released on 2008 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Interfacial and Mechanical Properties of Carbon Nanotubes

Download or read book Interfacial and Mechanical Properties of Carbon Nanotubes written by Mark Andrew Poggi and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Next generation polymer composites that utilize the high electrical conductivity and tensile strength of carbon nanotubes are of interest. To effectively disperse carbon nanotubes into polymers, a more fundamental understanding of the polymer/nanotube interface is needed. This requires the development of new analytical methods and techniques for measuring the adhesion between a single molecule and the sidewalls of carbon nanotubes. Atomic Force Microscopy is an integral tool in the characterization of materials on the nanoscale. The objectives of this research were to: 1) characterize the binding force between single molecules and the backbone of a single walled carbon nanotube (SWNT), and 2) measure and interpret the mechanical response of carbon-based nano-objects to compressive loads using an atomic force microscope. To identify chemical moieties that bind strongly to the sidewall of the nanotubes, two experimental approaches have been explored. In the first, force volume images of SWNT paper were obtained using gold-coated AFM tips functionalized with terminally substituted alkanethiols and para-substituted arylthiols. Analysis of these images enabled quantification of the adhesive interactions between the functionalized tip and the SWNT surface. The resultant adhesive forces were shown to be dependent upon surface topography, tip shape, and the terminal group on the alkanethiol. The mechanical response of several single- and multi-walled carbon nanotubes under compressive load was examined with an AFM. When the scanner, onto which the substrate has been mounted, was extended and retracted in a cyclic fashion, cantilever deflection, oscillation amplitude and resonant frequency were simultaneously monitored. By time-correlating cantilever resonance spectra, deflection and scanner motion, precise control over the length of nanotube in contact with the substrate, analogous to fly-fishing was achieved. This?multi-parameter force spectroscopy? method is applicable for testing the mechanical and interfacial properties of a wide range of nanoscale objects. This research has led to a clearer understanding of the chemistry at the nanotube/polymer interface, as well as the mechanical response of nanoscale materials. A new force spectroscopic tool, multi-parameter force spectroscopy, should be extremely helpful in characterizing the mechanical response of a myriad of nanoscale objects and enable nanoscale devices to become a reality.

Book Fiber Reinforced Nanocomposites Fundamentals and Applications

Download or read book Fiber Reinforced Nanocomposites Fundamentals and Applications written by Baoguo Han and published by Elsevier. This book was released on 2020-03-13 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced Nanocomposites: Fundamentals and Applications explores the fundamental concepts and emerging applications of fiber-reinforced nanocomposites in the automobile, aerospace, transportation, construction, sporting goods, optics, electronics, acoustics and environmental sector. In addition, the book provides a detailed overview of the properties of fiber-reinforced nanocomposites, including discussion on embedding these high-strength fibers in matrices. Due to the mismatch in structure, density, strain and thermal expansion coefficients between matrix and fibers, their thermo-mechanical properties strongly depend not only on the preparative methods, but also on the interaction between reinforcing phase and matrix phase. This book offers a concise overview of these advances and how they are leading to the creation of stronger, more durable classes of nanocomposite materials. - Explores the interaction between fiber, nanoreinforcers and matrices at the nanoscale - Shows how the properties of fiber-enforced nanocomposites are ideal for use for a variety of consumer products - Outlines the major challenges to creating fiber-reinforced nanocomposites effectively

Book Investigating Atomic Force Microscopy

Download or read book Investigating Atomic Force Microscopy written by Camtu Suhonen and published by . This book was released on 2018-07-14 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, atomic force microscopy (AFM) tip profile was introduced and studied on carbon nanotube with various widths. This technique is a potential applicant for imaging the bodies at Nano-scale under 10 nm due to the sharp apex of AFM's tips. In addition, it could apply for biology samples such as DNA, proteins, cells, which have larger sizes and higher sensitive surfaces. Therefore, AFM tip shapes have been emerged and studied throughout. The image information has been analyzed to estimate the AFM tip profile. The image analysis has been characterized by many programs specifically Surface program and Matlab. The purpose of our work is to present specific methods of investigation AFM tips on 2 nm - 10 nm carbon nanotube diameters.

Book Preparation Characterization and Applications of Electrospun Carbon Nanofibers and Its Composites

Download or read book Preparation Characterization and Applications of Electrospun Carbon Nanofibers and Its Composites written by Kim Ick Soo and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanofibers (CNFs) and its composites have gained vast attention due to its exceptional chemical and textural properties. So far, various multifunctional carbon nanofibers and its composites are developed with highly unique and tunable morphology. In this chapter, we reviewed unique fabrication methods that are recently reported and its characterization techniques such as SEM, FE-SEM, TEM, WAXD, XPS, AFM, and Raman. In addition, catalytic, energy, and environmental applications of carbon nanofiber composites (metals and/or metal oxide nanoparticles incorporated and/or decorated hybrid carbon nanofibers) are discussed. Preparation and characterization of electrospun carbon nanofiber composites and its applications in catalysis and energy storage are the main focus of this chapter.

Book Imaging Carbon Nanotubes in High Performance Polymer Composites Via Magnetic Force Microscope

Download or read book Imaging Carbon Nanotubes in High Performance Polymer Composites Via Magnetic Force Microscope written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of carbon nanotubes as reinforcement in structural composites is dependent on the efficient dispersion of the nanotubes in a high performance polymer matrix. The characterization of such dispersion is limited by the lack of available tools to visualize the quality of the matrix/carbon nanotube interaction. The work reported herein demonstrates the use of magnetic force microscopy (MFM) as a promising technique for characterizing the dispersion of nanotubes in a high performance polymer matrix. Lillehei, Peter T. and Park, Cheol and Rouse, Jason H. and Siochi, Emilie J. and Bushnell, Dennis M. (Technical Monitor) Langley Research Center NASA/CR-2002-212137, NAS 1.26:212137, ICASE-2002-48

Book Towards Greater Resolution in Atomic Force Microscopy Anodisation Lithography Using Carbon Nanotube Probes

Download or read book Towards Greater Resolution in Atomic Force Microscopy Anodisation Lithography Using Carbon Nanotube Probes written by Tracey Tra Mi Ho and published by . This book was released on 2008 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: