Synthesis, Characterization and Modification of Carbon Nanomaterials PDF Download

Author: Franziska Schäffel
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author:
Publisher:
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Category :
Languages : en
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Book Description
The main objective of the present thesis is to deepen the understanding of the mechanisms involved in catalytic growth of carbon nanotubes (CNT) and related processes, such as the catalytic hydrogenation, and to use this knowledge to optimize the experimental approaches in order to gain better control in the synthesis and modification of carbon nanomaterials. Controlled growth of the CNT is achieved using gas-phase prepared catalyst particles (Fe, Co) which serve as individual catalytic nucleation sites in a chemical vapor deposition (CVD) process. These studies highlight that the controlled preparation of catalyst particles is a crucial step in order to control the CNT morphology. The resultant CNT diameter and the CNT density are found to increase with increasing nanoparticle diameter and density, respectively. The number of walls of the CNT also increases with increasing primary catalyst size. The experimentally derived correlations between the particle diameter on one hand and the CNT diameter and the CNT number of walls on the other hand are attributed to an increase of the catalyst's volume-to-surface area ratio with increasing particle size. While the availability of carbon dissolved within the catalyst at the point of nucleation is determined by the catalyst volume, the amount of carbon required to form a cap depends on the surface area of the catalyst particle. Electron microscopy studies of the catalyst/substrate/carbon interfaces of CNT grown from Fe nanoparticles reveal that the CNT walls are anchored to the oxide substrate which contests the general argument that the CNT walls stem from atomic steps at the catalyst. It is argued that after nucleation, the substrate itself provides a catalytic functionality towards the stimulation of ongoing CNT growth, whereas the catalytic activity of the metal particle is more restricted to the nucleation process. Selective hard-magnetic functionalization of CNT tips has been achieved in a plasma-enhanced CVD process.

Author: Dirk M. Guldi
Publisher: John Wiley & Sons
ISBN: 9783527629947
Category : Technology & Engineering
Languages : en
Pages : 562

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Written by the most prominent experts and pioneers in the field, this ready reference combines fundamental research, recent breakthroughs and real-life applications in one well-organized treatise. As such, both newcomers and established researchers will find here a wide range of current methods for producing and characterizing carbon nanotubes using imaging as well as spectroscopic techniques. One major part of this thorough overview is devoted to the controlled chemical functionalization of carbon nanotubes, covering intriguing applications in photovoltaics, organic electronics and materials design. The latest research on novel carbon-derived structures, such as graphene, nanoonions and carbon pea pods, round off the book.

Author: Eduardo A. Castro
Publisher: CRC Press
ISBN: 1000770486
Category : Technology & Engineering
Languages : en
Pages : 338

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This book covers the innovative methodologies and strategies adopted in carbon materials research area including: Synthesis, characterization, and functionalization of carbon nanotubes and graphene Surface modification of graphene Carbon-based nanostructured materials The use of carbon nanomaterials for energy applications Development of carbon nanotubes reinforced metal matrix composites and non-metallic composites and their myriad potential end-use applications Key challenges to the successful and widespread implementation of carbon nanotubes reinforced metal matrix composites and non-metallic composites Methods for quantification and improved control of carbon nanotubes distributions Recent research and design trends for carbon nanomaterials-based sensors for a variety of applications Advances and potential applications in environmental monitoring and healthcare

Author: Mohd Shabbir
Publisher: John Wiley & Sons
ISBN: 1119620368
Category : Technology & Engineering
Languages : en
Pages : 342

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The book “Frontiers and Textile Materials will deal with the important materials that can be utilized for value-addition and functionalization of textile materials. The topics covered in this book includes the materials like enzymes, polymers, etc. that are utilized for conventional textile processing and the advanced materials like nanoparticles which are expected to change the horizons of textiles. The futuristic techniques for textile processing like plasma are also discussed.

Author: Suraya Abdul Rashid
Publisher: Elsevier
ISBN: 0128162597
Category : Technology & Engineering
Languages : en
Pages : 366

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Book Description
Synthesis, Technology and Applications of Carbon Nanomaterials explores the chemical properties of different classes of carbon nanomaterials and their major applications. As carbon nanomaterials are used for a variety of applications due to their versatile properties and characteristics, this book discusses recent advances in synthesis methods, characterization, and applications of 0D -3D dimensional carbon nanomaterials. It is an essential resource for readers focusing on carbon nanomaterials research. - Explores the chemical properties of different classes of carbon nanomaterials and their major applications - Discusses recent advances in synthesis methods, characterization, and applications of 0D -3D dimensional carbon nanomaterials

Author: Kamal K. Kar
Publisher: Research Publishing Service
ISBN: 9810863977
Category : Carbon
Languages : en
Pages : 15

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Author: Wu Yihong
Publisher: CRC Press
ISBN: 9814411949
Category : Science
Languages : en
Pages : 348

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After a brief introduction to the fundamental properties of graphene, this book focuses on synthesis, characterization and application of various types of two-dimensional (2D) nanocarbons ranging from single/few layer graphene to carbon nanowalls and graphene oxides. Three major synthesis techniques are covered: epitaxial growth of graphene on SiC, chemical synthesis of graphene on metal, and chemical vapor deposition of vertically aligned carbon nanosheets or nanowalls. One chapter is dedicated to characterization of 2D nanocarbon using Raman spectroscopy. It provides extensive coverage for applications of 2D carbon in energy storage including supercapacitor, lithium ion battery and fuel cells.

Author: Amir Al-Ahmed
Publisher: CRC Press
ISBN: 1000596443
Category : Science
Languages : en
Pages : 237

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This book examines the synthesis of graphene obtained from different natural raw materials and waste products as a low-cost, environmentally friendly alternative that delivers a quality final product. Expert researchers review potential sources of natural raw materials and waste products, methods or characterization, graphene synthesis considerations, and important applications. FEATURES Explores the different approaches to the synthesis of graphene oxide (GO) and reduced graphene oxide (rGO) from natural and industrial carbonaceous wastes Outlines the modification and characterization methods of GO and rGO Addresses the characterization methods of GO and rGO Details applications of GO and rGO created from natural sources Graphene is a multidisciplinary material with applications in almost every sector of science and engineering. Graphene from Natural Sources: Synthesis, Characterization, and Applications is a noteworthy reference for material scientists and engineers in academia and industry interested in reducing costs and employing green synthesis methods in their work.

Author: Yury Gogotsi
Publisher: CRC Press
ISBN: 1466502428
Category : Science
Languages : en
Pages : 516

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Book Description
This book provides information on synthesis, properties, and applications of carbon nanomaterials. With novel materials, such as graphene (atomically flat carbon) or carbon onions (carbon nanospheres), the family of carbon nanomaterials is rapidly growing. This book provides a state-of-the-art overview and in-depth analysis of the most important ca