Synthesis of Carbon Nanotubes Using Methane-air Premixed Flames Seeded with Ferrocene PDF Download
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Author: Alexander Zak Publisher: ISBN: Category : Nanotubes Languages : en Pages : 83
Book Description
Carbon nanotubes have been extensively studied for two decades. CNTs attracted scientists' attention due to their exceptional mechanical, chemical, and electrical properties. Multiple methods including arc discharge, laser ablation, CVD, and several flame synthesis methods are used to grow CNTs. The most significant problem with all current methods is the high cost and low yield of the generated materials. Furthermore, none of the current mechanisms explain completely the formation mechanism of CNTs. This study utilizes methane-based premixed flames to grow CNTs in a one-dimensional, stagnation point geometry. Vaporized ferrocene Fe(C5H5)2 is seeded into the flame and acts as a catalyst for nanotube growth. CNTs are collected from the substrate located 1.5 cm away from the burner nozzle and are analyzed using TEM, SEM with EDS, and Raman spectroscopy to ascertain the presence of nanotubes. Different carbon structures including carbon nanofibers, MWNTs, and SWNTs are generated using this technique. The presence of MWNTs is observed under TEM, while nanofibers are viewed under SEM. Raman spectroscopy is used to identify SWNTs.
Author: Alexander Zak Publisher: ISBN: Category : Nanotubes Languages : en Pages : 83
Book Description
Carbon nanotubes have been extensively studied for two decades. CNTs attracted scientists' attention due to their exceptional mechanical, chemical, and electrical properties. Multiple methods including arc discharge, laser ablation, CVD, and several flame synthesis methods are used to grow CNTs. The most significant problem with all current methods is the high cost and low yield of the generated materials. Furthermore, none of the current mechanisms explain completely the formation mechanism of CNTs. This study utilizes methane-based premixed flames to grow CNTs in a one-dimensional, stagnation point geometry. Vaporized ferrocene Fe(C5H5)2 is seeded into the flame and acts as a catalyst for nanotube growth. CNTs are collected from the substrate located 1.5 cm away from the burner nozzle and are analyzed using TEM, SEM with EDS, and Raman spectroscopy to ascertain the presence of nanotubes. Different carbon structures including carbon nanofibers, MWNTs, and SWNTs are generated using this technique. The presence of MWNTs is observed under TEM, while nanofibers are viewed under SEM. Raman spectroscopy is used to identify SWNTs.
Author: Peter J. F. Harris Publisher: Cambridge University Press ISBN: 0521828953 Category : Science Languages : en Pages : 315
Book Description
Provides coverage of all of the important aspects of carbon nanotube research, including synthesis, properties and potential applications.
Author: Annelise Kopp Alves Publisher: Springer Science & Business Media ISBN: 3642412750 Category : Technology & Engineering Languages : en Pages : 92
Book Description
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.
Author: Ian Colbeck Publisher: John Wiley & Sons ISBN: 1119977924 Category : Science Languages : en Pages : 522
Book Description
AEROSOL SCIENCE TECHNOLOGY AND APPLICATIONS Aerosols influence many areas of our daily life. They are at the core of environmental problems such as global warming, photochemical smog and poor air quality. They can also have diverse effects on human health, where exposure occurs in both outdoor and indoor environments. However, aerosols can have beneficial effects too; the delivery of drugs to the lungs, the delivery of fuels for combustion and the production of nanomaterials all rely on aerosols. Advances in particle measurement technologies have made it possible to take advantage of rapid changes in both particle size and concentration. Likewise, aerosols can now be produced in a controlled fashion. Reviewing many technological applications together with the current scientific status of aerosol modelling and measurements, this book includes: Satellite aerosol remote sensing The effects of aerosols on climate change Air pollution and health Pharmaceutical aerosols and pulmonary drug delivery Bioaerosols and hospital infections Particle emissions from vehicles The safety of emerging nanomaterials Radioactive aerosols: tracers of atmospheric processes With the importance of this topic brought to the public's attention after the eruption of the Icelandic volcano Eyjafjallajökull, this book provides a timely, concise and accessible overview of the many facets of aerosol science.
Author: Arben Merkoci Publisher: John Wiley & Sons ISBN: 0470447729 Category : Science Languages : en Pages : 523
Book Description
An interdisciplinary approach to one of the hottest topics in nanotechnology and nanoscience Biosensing Using Nanomaterials introduces novel concepts in the area of bioanalysis based on nanomaterials, opening new opportunities for basic research and new tools for real bioanalytical applications. In fifteen chapters, readers are introduced to the most successful nanomaterials used so far in biosensing, including carbon nanotubes, nanoparticles, and nanochannels. Each chapter provides a theoretical overview of the topic, a discussion of the published data relating to the bioanalytical system, and a selected list of references for further investigation. The result is a book that provides a comprehensive forum of interest to scientists, engineers, researchers, manufacturers, teachers, and students. Biosensing Using Nanomaterials is an important resource for a broad audience involved in the research, teaching, learning, and practice of integrating nanomaterials into biosensing systems for clinical, environmental, and industrial applications.
Author: Gerhard Ertl Publisher: John Wiley & Sons ISBN: 3527620680 Category : Science Languages : en Pages : 639
Book Description
Solid catalysts play a fundamental role in all areas between basic research and industrial applications. This book offers a large amount of information about the preparation of solid catalysts. All types of solid catalysts and all important aspects of their preparation are discussed. The highly topical contributions are written by leading experts in disciplines ranging from solid state, interface and solution chemistry to industrial engineering. The straightforward presentation of the material and the comprehensive coverage make this book an essential and indispensible tool for every scientist and engineer working with solid catalysts.
Author: Tapan Gupta Publisher: Springer ISBN: 9783319882352 Category : Technology & Engineering Languages : en Pages : 0
Book Description
All living things contain carbon in some form, as it is the primary component of macromolecules including proteins, lipids, nucleic acids (RNA and DNA), and carbohydrates. As a matter of fact, it is the backbone of all organic (chemistry) compounds forming different kinds of bonds. Carbon: The Black, the Gray and the Transparent is not a complete scientific history of the material, but a book that describes key discoveries about this old faithful element while encouraging broader perspectives and approaches to its research due to its vast applications. All allotropes of carbon are described in this book, along with their properties, uses, and methods of procurement or manufacturing. Black carbon is represented by coal, gray carbon is represented by graphite, and transparent carbon is represented by diamond.
Author: Alexander Zak
Author: Alexander Zak
Author: 
Author: 
Author: Peter J. F. Harris
Author: Annelise Kopp Alves
Author: Ian Colbeck
Author: Arben Merkoci
Author: J. T. Anthony
Author: Gerhard Ertl
Author: Tapan Gupta