Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Preparation And Characterization Of Nitrogen Doped Carbon Nanotube Electrode Materials
Download Preparation And Characterization Of Nitrogen Doped Carbon Nanotube Electrode Materials full books in PDF, epub, and Kindle. Read online Preparation And Characterization Of Nitrogen Doped Carbon Nanotube Electrode Materials ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Preparation and Characterization of Nitrogen Doped Carbon Nanotube Electrode Materials by : Stephen Maldonado
Download or read book Preparation and Characterization of Nitrogen Doped Carbon Nanotube Electrode Materials written by Stephen Maldonado and published by . This book was released on 2006 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the preparation and characterization of nitrogen doped carbon nanotube films by a chemical vapor deposition (CVD) process. Thorough description of the preparation method is given. A variety of techniques are used to demonstrate the relationship between the physicochemical properties and electrochemical properties of nitrogen doped carbon nanotubes, shedding insight to the influence of nitrogen doping on observed electrocatalysis phenomena. Chapter 1 comprises a general overview of the presented material and scope of the work. Chapter 2 details the CVD preparation of nitrogen doped carbon nanotubes. Scanning electron microscopy, thermal gravimetric analysis, and x-ray photoelectron spectroscopy are used to demonstrate the degree of control afforded by the CVD process over the resultant properties of the prepared carbon nanotubes. The direct preparation of carbon nanotube films on a current collector is shown. Chapter 3 consists of a thorough characterization and comparison of nitrogen doped carbon nanotubes and non-doped carbon nanotubes. Transmission electron microscopy, thermal gravimetric analysis, and Raman spectroscopy demonstrate the increased disorder caused by nitrogen doping into the graphitic lattice structure of carbon nanotubes. X-ray photoelectron spectroscopy highlights the existence of multiple carbon-nitrogen surface functionalities that change in relative abundance as the nitrogen content is varied. Titration analyses indicate that nitrogen doped carbon nanotubes are basic and acquire a cationic surface charge in solutions of neutral pH. Chapter 4 presents a collection of voltammetric responses of several outer-sphere and inner-sphere redox probes. The similarities and differences between the responses at non-doped carbon nanotube electrodes and nitrogen doped carbon nanotube electrodes are noted and discussed in the context of the conclusions of the physical characterizations. A detailed mechanistic analysis of the O2 reduction process at nitrogen doped carbon nanotube electrodes is presented. Chapter 5 details continuing work with carbon nanotube materials for fundamental and applied studies.
Book Synopsis Effect of Nitrogen Doping on the Electronic and Catalytic Properties of Carbon Nanotube Electrode Materials by : Jaclyn Dawn Wiggins-Camacho
Download or read book Effect of Nitrogen Doping on the Electronic and Catalytic Properties of Carbon Nanotube Electrode Materials written by Jaclyn Dawn Wiggins-Camacho and published by . This book was released on 2011 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation discusses the influence of nitrogen doping (N-doping) on the electronic and catalytic properties of carbon nanotubes (CNTs). These properties have been studied using a variety of techniques, in order to both qualitatively and quantitatively analyze the relationship between the nitrogen concentration and observed properties. Chapter 1 provides a general overview of CNTs and N-doping and details some of the previous research from our group. Chapter 2 discusses the assembly and characterization of free-standing electrode mats, which are used in order to understand the intrinsic physicochemical properties of the material without relying on the secondary influence of another conductive support. Raman microscopy, X-Ray photoelectron spectroscopy, scanning and scanning-tunneling electron microscopy, as well as electrochemical methods were all used to demonstrate the viability of the mat electrodes for further experiments. Chapter 3 addresses the examination of a range of nitrogen concentrations in order to better understand the effects of nitrogen concentration on the electrochemical and electrical properties such as the differential capacitance, density of states at the Fermi level (D(E[subscript F])), bulk conductivity and work function. These properties were studied using a variety of techniques, including UV-photoelectron spectroscopy, electrochemical impedance spectroscopy and conductive four point probe. Chapter 4 investigates the inherent catalysis of the nitrogen doped CNTs (N-CNTs) with respect to O2 reduction, and a complex mechanism is proposed. Electrochemical methods such as cyclic and linear sweep voltammetries as well as thermo-gravimetric analysis and gasometric analysis were all employed to determine heterogeneous decomposition rates as well as to detect intermediates of the O2 reduction reaction. Chapter 5 discusses the electrocatalytic degradation of free cyanide (CN−) at the N-CNT mat electrodes. These results both provide further support for the mechanism discussed in Chapter 4, and present the opportunity for a potential application of N-CNTs for environmental purposes. Specifically, spectroscopic and electrochemical methods, in conjunction with theoretical models show both that the presence of CN− does not inhibit O2 reduction, and that it can be effectively converted to cyanate (OCN−) at the N-CNT electrodes. Future work involving the assembly and characterization of transparent N-CNT films is discussed in Chapter 6.
Book Synopsis Nitrogen Doped Carbon Nanotubes by : S. van Dommele
Download or read book Nitrogen Doped Carbon Nanotubes written by S. van Dommele and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Characterization and Chemical Functionalization of Nitrogen Doped Carbon Nanotubes for the Application in Gas- and Bio-sensors by : Yangxi Fu
Download or read book Synthesis, Characterization and Chemical Functionalization of Nitrogen Doped Carbon Nanotubes for the Application in Gas- and Bio-sensors written by Yangxi Fu and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Syntheses and Applications of Carbon Nanotubes and Their Composites by : Satoru Suzuki
Download or read book Syntheses and Applications of Carbon Nanotubes and Their Composites written by Satoru Suzuki and published by BoD – Books on Demand. This book was released on 2013-05-09 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes are rolled up graphene sheets with a quasi-one-dimensional structure of nanometer-scale diameter. In these last twenty years, carbon nanotubes have attracted much attention from physicists, chemists, material scientists, and electronic device engineers, because of their excellent structural, electronic, optical, chemical and mechanical properties. More recently, demand for innovative industrial applications of carbon nanotubes is increasing. This book covers recent research topics regarding syntheses techniques of carbon nanotubes and nanotube-based composites, and their applications. The chapters in this book will be helpful to many students, engineers and researchers working in the field of carbon nanotubes.
Book Synopsis Boron and Nitrogen-doped Carbon Nanotubes by : Godfrey Kamitha Keru
Download or read book Boron and Nitrogen-doped Carbon Nanotubes written by Godfrey Kamitha Keru and published by . This book was released on 2015 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrochemistry of Carbon Electrodes by : Richard C. Alkire
Download or read book Electrochemistry of Carbon Electrodes written by Richard C. Alkire and published by John Wiley & Sons. This book was released on 2016-03-31 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book sets the standard on carbon materials for electrode design. For the first time, the leading experts in this field summarize the preparation techniques and specific characteristics together with established and potential applications of the different types of carbon-based electrodes. An introductory chapter on the properties of carbon together with chapters on the electrochemical characteristics and properties of the different modifications of carbon such as carbon nanotubes, graphene, carbon fiber, diamond or highly ordered pyrolytic graphite provide the reader with the basics on this fascinating and ubiquitous electrode material. Cutting-edge technologies such as carbon electrodes in efficient supercapacitors, Li-ion batteries and fuel cells, or electrodes prepared by screen-printing are discussed, giving a complete but concise overview about the topic. The clearly structured book helps newcomers to grasp easily the principles of carbon-based electrodes, while researchers in fundamental and applied electrochemistry will find new ideas for further research on related key technologies.
Book Synopsis Characterization and Modification of Substrates for Scanning Tunneling Microscopy and Spectroscopy Studies of Nitrogen-doped Carbon Nanotubes by : Hari Chandana Bellam
Download or read book Characterization and Modification of Substrates for Scanning Tunneling Microscopy and Spectroscopy Studies of Nitrogen-doped Carbon Nanotubes written by Hari Chandana Bellam and published by . This book was released on 2005 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frontiers in Materials: Rising Stars by : Nicola Maria Pugno
Download or read book Frontiers in Materials: Rising Stars written by Nicola Maria Pugno and published by Frontiers Media SA. This book was released on 2020-04-17 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Frontiers in Materials Editorial Office team are delighted to present the inaugural “Frontiers in Materials: Rising Stars” article collection, showcasing the high-quality work of internationally recognized researchers in the early stages of their independent careers. All Rising Star researchers featured within this collection were individually nominated by the Journal’s Chief Editors in recognition of their potential to influence the future directions in their respective fields. The work presented here highlights the diversity of research performed across the entire breadth of the materials science and engineering field, and presents advances in theory, experiment and methodology with applications to compelling problems. This Editorial features the corresponding author(s) of each paper published within this important collection, ordered by section alphabetically, highlighting them as the great researchers of the future. The Frontiers in Materials Editorial Office team would like to thank each researcher who contributed their work to this collection. We would also like to personally thank our Chief Editors for their exemplary leadership of this article collection; their strong support and passion for this important, community-driven collection has ensured its success and global impact. Laurent Mathey, PhD Journal Development Manager
Book Synopsis Nitrogen-doped Carbon Nanotubes by : Lucy Mudiwo Ombaka
Download or read book Nitrogen-doped Carbon Nanotubes written by Lucy Mudiwo Ombaka and published by . This book was released on 2015 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Mildred S. Dresselhaus Publisher :Springer Science & Business Media ISBN 13 :354039947X Total Pages :461 pages Book Rating :4.5/5 (43 download)
Book Synopsis Carbon Nanotubes by : Mildred S. Dresselhaus
Download or read book Carbon Nanotubes written by Mildred S. Dresselhaus and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a short introduction and a brief review of the relation between carbon nanotubes, graphite and other forms of carbon, the synthesis techniques and growth mechanisms for carbon nanotubes are described. This is followed by reviews on nanotube electronic structure, electrical, optical, and mechanical properties, nanotube imaging and spectroscopy, and nanotube applications.
Book Synopsis Preparation and Characterization of Doped Glassy Carbon Materials by : Olivier Jean Arthur Schueller
Download or read book Preparation and Characterization of Doped Glassy Carbon Materials written by Olivier Jean Arthur Schueller and published by . This book was released on 1995 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Science of Fullerenes and Carbon Nanotubes by : M. S. Dresselhaus
Download or read book Science of Fullerenes and Carbon Nanotubes written by M. S. Dresselhaus and published by Elsevier. This book was released on 1996-03-20 with total page 985 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of fullerenes (also known as buckyballs) has generated tremendous excitement and opened up a new field of carbon chemistry. As the first book available on this topic, this volume will be a landmark reference in the field. Because buckyballs are essentially closed hollow cages made up of carbon atoms, they can be manipulated in a variety of ways to yield never-before-seen materials. The balls can, for instance, be doped with atoms or pulled out into tubules and filled with lead to provide properties of high-temperature superconductivity. Researchers can now create their own buckyballs in a process that is almost as simple as making soot, making this research as inexpensive as it is exotic (which has doubtless contributed to its popularity). Researchers anticipate that fullerenes will offer boundless opportunities in the development of new products, drugs and materials. Science of Fullerenes and Carbon Nanotubes introduces materials scientists, chemists, and solid state physicists to the field of fullerenes, and discusses the unique properties and applications. both current and future, of all classes of fullerenes. Key Features * First comprehensive resource on fullerenes and their applications * Provides an introduction to the topic * Presents an extensive discussion of current and future applications of Fullerenes * Covers all classes of fullerenes
Book Synopsis PEM Fuel Cell Electrocatalysts and Catalyst Layers by : Jiujun Zhang
Download or read book PEM Fuel Cell Electrocatalysts and Catalyst Layers written by Jiujun Zhang and published by Springer Science & Business Media. This book was released on 2008-08-26 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton exchange membrane (PEM) fuel cells are promising clean energy converting devices with high efficiency and low to zero emissions. Such power sources can be used in transportation, stationary, portable and micro power applications. The key components of these fuel cells are catalysts and catalyst layers. “PEM Fuel Cell Electrocatalysts and Catalyst Layers” provides a comprehensive, in-depth survey of the field, presented by internationally renowned fuel cell scientists. The opening chapters introduce the fundamentals of electrochemical theory and fuel cell catalysis. Later chapters investigate the synthesis, characterization, and activity validation of PEM fuel cell catalysts. Further chapters describe in detail the integration of the electrocatalyst/catalyst layers into the fuel cell, and their performance validation. Researchers and engineers in the fuel cell industry will find this book a valuable resource, as will students of electrochemical engineering and catalyst synthesis.
Book Synopsis Synthesis of Nitrogen-doped Carbon Nanotubes by : Kambiz Chizari
Download or read book Synthesis of Nitrogen-doped Carbon Nanotubes written by Kambiz Chizari and published by . This book was released on 2011 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of carbon nanotubes (CNT) in 1991, a lot of efforts have been done in order to find out their intrinsic properties and their possible applications. One of the most efficient methods used for tuning its physical and chemical properties is doping CNTs by nitrogen or boron. The aim of this work deals with the synthesis of nitrogen-doped carbon nanotubes (N-CNTs) and with the study of the catalytic performance of this material either as catalyst support or as a metal-free catalyst. The influence of the different synthesis parameters on the physical and chemical properties of the N-CNTs was investigated. Afterwards, the N-CNTs were used as catalyst support for the hydrogenation of cinnamaldehyde and its catalytic performance was compared to that obtained on the undoped CNTs. It was shown that N-CNTs synthesized in different conditions lead to different catalytic performances which was mainly linked with the nature of the incorporated nitrogen species. The N-CNTs were also employed as a metal-free catalyst for the selective oxidation of H2S into elemental sulfur and the results are discussed within this thesis. Recently 2D carbon material, namely graphene, has received a great interest due to its special physical properties. The previous investigations on the other graphitic material such as carbon nanotubes facilitate the understanding of the properties and behavior of this material. In this thesis we also worked on the synthesis of the few-layer graphene (FLG), using microwave irradiations. A preliminary study has also done on the nitrogen-doping of this material by microwave treatment on the expanded graphite dispersed in ammonium hydroxide. The FLGs were used as a catalyst support for the hydrogenation of cinnamaldehyde and its catalytic performance is compared to other graphitic materials such as natural graphite, expanded graphite and carbon nanotubes.
Book Synopsis Synthesis and Characterization of Nitrogen, Boron, Chlorine and Fluorine Doped Carbon Nanotubes by : Adeniyi Olugbenga Osikoya
Download or read book Synthesis and Characterization of Nitrogen, Boron, Chlorine and Fluorine Doped Carbon Nanotubes written by Adeniyi Olugbenga Osikoya and published by . This book was released on 2013 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes (CNTs) doped with nitrogen, boron, chlorine and fluorine have been synthesized in a catalytic chemical vapour deposition (CCVD) reactor at 700 and 800 °C, using cobalt and silver as catalysts supported on magnesium oxide. The synthesized carbon nanotubes were characterized by Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction spectroscopy (XRD), Thermogravimetric analysis (TGA) and Energy dispersive spectroscopy (EDS). Carbon nanotubes doped with nitrogen were found to have internal bamboo shaped structures in the TEM results. Carbon nanotubes doped with boron were also found to have compartmentalized internal structures with narrower inner diameter compared to the outer diameter. SEM characterization shows that carbon nanotubes doped with chlorine have tapered or spike-like external morphology. While fluorine doped carbon nanotubes shows the formation of a lot of carbon nanospheres and, amorphous carbon in addition to the formation of tubular structures with rough and grainy-like external morphology.
