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Investigating The Synthesis Of Transition Metal Oxide Nanostructures In A Counter Flow Flame
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Book Synopsis Investigating the Synthesis of Transition Metal Oxide Nanostructures in a Counter-flow Flame by : Moien Farmahini-Farahani
Download or read book Investigating the Synthesis of Transition Metal Oxide Nanostructures in a Counter-flow Flame written by Moien Farmahini-Farahani and published by . This book was released on 2014 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Local Growth Conditions in the Flame Synthesis of Metal-oxide Nanostructures by : Cassandra D'Esposito
Download or read book Investigating Local Growth Conditions in the Flame Synthesis of Metal-oxide Nanostructures written by Cassandra D'Esposito and published by . This book was released on 2009 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis of metal-oxide nanowires (i.e. WO2.9, ZnO, Cu2O, and Fe3O4) and nanoplates (i.e. MoO2) is examined experimentally with metal-substrate probes inserted into counter-flow diffusion flames (CDFs) at atmospheric pressure. The quasi-one-dimensional flow field allows for correlation between morphologies and local growth conditions, as well as the tailoring of the flame structure, through computational simulations with detailed chemical kinetics and transport, to provide conditions suitable for gas-phase growth of nanostructures. Comparisons of products synthesized between methane and hydrogen flames, as well as between locations probed on either the fuel side or the air side of the reaction zone, permit evaluation of the roles of O2 versus H2O versus CO2 in the oxidative route(s) involved. The as-synthesized nanostructures are characterized by field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and energy dispersive X-ray spectroscopy (EDXS). Tungsten oxide nanowires are grown with diameters ranging from 50 to 200 nm at 1720K. The crystal structure is tetragonal WO2.9, but the growth directions vary with flame conditions. Single-crystal ZnO nanostructures are formed at 1000, 1300, and 1600K. All growth mechanisms are possible based on Gibbs free energy calculations. Molybdenum oxide nanoplates are grown in the methane flame at 2000K on both the air and fuel sides, where similar amounts of H2O and CO2 are found. In the hydrogen flame, oxidized structures are grown on the air side, and micron sized plates are synthesized on the fuel side. Cu2O nanowires are grown only on the air side of the methane and hydrogen flames, where large amounts of oxygen are present. The fuel sides of both flames show nucleation sites on the surface but no nanowire growth. Iron oxide nanowires are formed on the air side of the methane and hydrogen flames. Carbon nanotubes and nanowires are grown on the fuel side of the methane flame, while iron-oxide nodules are formed on the fuel side of the hydrogen flame.
Book Synopsis Nanomaterials Synthesis by : Yasir Beeran Pottathara
Download or read book Nanomaterials Synthesis written by Yasir Beeran Pottathara and published by Elsevier. This book was released on 2019-05-29 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials Synthesis: Design, Fabrication and Applications combines the present and emerging trends of synthesis routes of nanomaterials with the incorporation of various technologies. The book covers the new trends and challenges in the synthesis and surface engineering of a wide range of nanomaterials, including emerging technologies used for their synthesis. Significant properties, safety and sustainability and environmental impacts of the synthesis routes are explored. This book is an important information source that will help materials scientists and engineers who want to learn more about how different classes of nanomaterials are designed. Highlights recent developments in, and opportunities created by, new nanomaterials synthesis methods Explains major synthesis techniques for different types of nanomaterials Discusses the challenges of using a variety of synthesis methods
Book Synopsis Flame Synthesis of Transition Metal Oxide Nanostructures by : Aaron Mark Taylor
Download or read book Flame Synthesis of Transition Metal Oxide Nanostructures written by Aaron Mark Taylor and published by . This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Iron Oxide Nanoparticles in a Counterflow Diffusion Flame Reactor by : Hector Enrique Ruiz
Download or read book Synthesis of Iron Oxide Nanoparticles in a Counterflow Diffusion Flame Reactor written by Hector Enrique Ruiz and published by . This book was released on 2008 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A Counterflow Diffusion Flame (CDF) reactor was used to produce iron oxide nanoparticles. The experimental work was performed to study synthesis conditions and characterize the iron oxide nanoparticles. The parameters studied are those that control the flame structure, namely, gas flow rates and vacuum; other parameters include the precursor volume flow rate, and the relative location and temperature of the collecting probe inside the flame. Hexagonal nanoparticles were the most commonly observed shape. Hexagonal-shaped nanoparticles are mainly formed under stoichiometric conditions and with a high temperature profile in the flame. Cubic nanoparticles were also observed. The main parameter for the formation of cubic-shaped nanoparticles was found to be the equivalence ratio. A minimum value of less than one percentage of cubic nanoparticles was observed at equivalence ratios ranging between 0.7488 and 0.9283. The main effect on particle size was observed to be from the hydrogen flow rate, which was found that the higher the hydrogen flow rate is, the smaller the average nanoparticle size. A secondary minor effect was observed from variations of vacuum flow rate. This effect could be associated with changes in the total mass or volumetric flow rate balance. Adjusting N2 in H2 stream allowed the synthesis of samples with approximately 95% hexagonal nanoparticles without agglomerates"--Abstract, leaf iii.
Book Synopsis Semi-conducting Metal Oxide Nanoparticles from a Low-pressure Premixed H_1tn2/O_1tn2/Ar Flame: Synthesis and Characterization by : Pascal Onyibo Ifeacho
Download or read book Semi-conducting Metal Oxide Nanoparticles from a Low-pressure Premixed H_1tn2/O_1tn2/Ar Flame: Synthesis and Characterization written by Pascal Onyibo Ifeacho and published by Cuvillier Verlag. This book was released on 2008 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flame Synthesis of Transition Metal-oxide Nanoforms by : Walmy Cuello Jimenez
Download or read book Flame Synthesis of Transition Metal-oxide Nanoforms written by Walmy Cuello Jimenez and published by . This book was released on 2010 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Oxide Nanoparticles, 2 Volume Set by : Oliver Diwald
Download or read book Metal Oxide Nanoparticles, 2 Volume Set written by Oliver Diwald and published by John Wiley & Sons. This book was released on 2021-09-14 with total page 903 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanoparticles A complete nanoparticle resource for chemists and industry professionals Metal oxide nanoparticles are integral to a wide range of natural and technological processes—from mineral transformation to electronics. Additionally, the fields of engineering, electronics, energy technology, and electronics all utilize metal oxide nanoparticle powders. Metal Oxide Nanoparticles: Formation, Functional Properties, and Interfaces presents readers with the most relevant synthesis and formulation approaches for using metal oxide nanoparticles as functional materials. It covers common processing routes and the assessment of physical and chemical particle properties through comprehensive and complementary characterization methods. This book will serve as an introduction to nanoparticle formulation, their interface chemistry and functional properties at the nanoscale. It will also act as an in-depth resource, sharing detailed information on advanced approaches to the physical, chemical, surface, and interface characterization of metal oxide nanoparticle powders and dispersions. Addresses the application of metal oxide nanoparticles and its economic impact Examines particle synthesis, including the principles of selected bottom-up strategies Explores nanoparticle formulation—a selection of processing and application routes Discusses the significance of particle surfaces and interfaces on structure formation, stability and functional materials properties Covers metal oxide nanoparticle characterization at different length scales With this valuable resource, academic researchers, industrial chemists, and PhD students can all gain insight into the synthesis, properties, and applications of metal oxide nanoparticles.
Book Synopsis Opposed Flow Oxy-Fuel Diffusion Flame Synthesis of One-Dimensional Vanadium Oxide Nanostructures on Solid Support by : Gautam Uday Salkar
Download or read book Opposed Flow Oxy-Fuel Diffusion Flame Synthesis of One-Dimensional Vanadium Oxide Nanostructures on Solid Support written by Gautam Uday Salkar and published by . This book was released on 2011 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Flame Synthesis of Metal Oxide Nanoparticles by : Manfred Geier
Download or read book On Flame Synthesis of Metal Oxide Nanoparticles written by Manfred Geier and published by . This book was released on 2009 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Oxide Nanostructures written by and published by . This book was released on 2009 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flame Synthesis and Applications of Metal Oxide Nanowires by : Pratap Mahesh Rao
Download or read book Flame Synthesis and Applications of Metal Oxide Nanowires written by Pratap Mahesh Rao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Herein, two novel methods for the flame synthesis of metal oxide nanowire arrays and related nanomaterials are developed and investigated. Both methods are rapid (micrometer/minute axial growth rate), atmospheric, controllable and scalable, and result in highly pure and crystalline materials. Simultaneously, these methods allow the growth of metal oxide nanowires on diverse, technologically relevant, and often delicate substrates. The first method is flame-heated solid phase diffusion growth, in which a metal substrate is rapidly heated to high temperatures by a flame, and metal oxide nanowires grow by metal diffusion out of the substrate in the hot, oxidative post-flame environment. The second is flame vapor deposition, in which the flame oxidizes and evaporates metals at high temperatures to produce large concentrations of oxide vapors that condense onto cooler substrates in the form of nanowires and other nanostructures. In each method, the chemical composition, growth rate and morphology (shape, packing density and alignment) of the nanostructures can be finely controlled by tuning flame parameters such as the fuel/air ratio and temperature, and substrate parameters such as surface energy and temperature. Moreover, an application of flame synthesized nanowires is demonstrated for the first time. As a result of superior morphology (increased length and packing density), the photoelectrochemical water-splitting performance of flame-synthesized tungsten trioxide nanowires is more than twice that of state of the art tungsten trioxide nanowire photoanodes synthesized by conventional hydrothermal and vapor deposition methods. These flame synthesis methods may enable future generations of technologies based on metal oxide nanowires to be developed and deployed on a large scale.
Book Synopsis Silicon-based Nanomaterials by : Handong Li
Download or read book Silicon-based Nanomaterials written by Handong Li and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of nanomaterials have excellent optoelectronic and electronic properties for novel device applications. At the same time, and with advances in silicon integrated circuit (IC) techniques, compatible Si-based nanomaterials hold promise of applying the advantages of nanomaterials to the conventional IC industry. This book focuses not only on silicon nanomaterials, but also summarizes up-to-date developments in the integration of non-silicon nanomaterials on silicon. The book showcases the work of leading researchers from around the world who address such key questions as: Which silicon nanomaterials can give the desired optical, electrical, and structural properties, and how are they prepared? What nanomaterials can be integrated on to a silicon substrate and how is this accomplished? What Si-based nanomaterials may bring a breakthrough in this field? These questions address the practical issues associated with the development of nanomaterial-based devices in applications areas such as solar cells, luminous devices for optical communication (detectors, lasers), and high mobility transistors. Investigation of silicon-based nanostructures is of great importance to make full use of nanomaterials for device applications. Readers will receive a comprehensive view of Si-based nanomaterials, which will hopefully stimulate interest in developing novel nanostructures or techniques to satisfy the requirements of high performance device applications. The goal is to make nanomaterials the main constituents of the high performance devices of the future.
Book Synopsis Semiconductor Gas Sensors by : Raivo Jaaniso
Download or read book Semiconductor Gas Sensors written by Raivo Jaaniso and published by Woodhead Publishing. This book was released on 2019-09-24 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor Gas Sensors, Second Edition, summarizes recent research on basic principles, new materials and emerging technologies in this essential field. Chapters cover the foundation of the underlying principles and sensing mechanisms of gas sensors, include expanded content on gas sensing characteristics, such as response, sensitivity and cross-sensitivity, present an overview of the nanomaterials utilized for gas sensing, and review the latest applications for semiconductor gas sensors, including environmental monitoring, indoor monitoring, medical applications, CMOS integration and chemical warfare agents. This second edition has been completely updated, thus ensuring it reflects current literature and the latest materials systems and applications. Includes an overview of key applications, with new chapters on indoor monitoring and medical applications Reviews developments in gas sensors and sensing methods, including an expanded section on gas sensor theory Discusses the use of nanomaterials in gas sensing, with new chapters on single-layer graphene sensors, graphene oxide sensors, printed sensors, and much more
Book Synopsis Nano-Antimicrobials by : Nicola Cioffi
Download or read book Nano-Antimicrobials written by Nicola Cioffi and published by Springer Science & Business Media. This book was released on 2012-02-26 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a high demand for antimicrobials for the treatment of new and emerging microbial diseases. In particular, microbes developing multidrug resistance have created a pressing need to search for a new generation of antimicrobial agents, which are effective, safe and can be used for the cure of multidrug-resistant microbial infections. Nano-antimicrobials offer effective solutions for these challenges; the details of these new technologies are presented here. The book includes chapters by an international team of experts. Chemical, physical, electrochemical, photochemical and mechanical methods of synthesis are covered. Moreover, biological synthesis using microbes, an option that is both eco-friendly and economically viable, is presented. The antimicrobial potential of different nanoparticles is also covered, bioactivity mechanisms are elaborated on, and several applications are reviewed in separate sections. Lastly, the toxicology of nano-antimicrobials is briefly assessed.
Book Synopsis Green Synthesis of Nanoparticles: Applications and Prospects by : Quaiser Saquib
Download or read book Green Synthesis of Nanoparticles: Applications and Prospects written by Quaiser Saquib and published by Springer Nature. This book was released on 2020-10-19 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes various strategies for the synthesis of green nanoparticles using plant extracts and microbes, including the advantages and disadvantages of different methods and their applications. After discussing strategies for and the potential of green synthesis of noble metal nanoparticles, it highlights the role of the solvent system. The book then explores the stability/toxicity of nanoparticles and the associated-surface engineering techniques for achieving biocompatibility, and examines the antimicrobial efficacy of green nanoparticles with regard to various bacterial pathogens, as well as the underlying cytotoxicity mechanisms. Lastly, the book addresses the potential applications of various green nanoparticles in cancer theranostics, and reviews a number of plant-mediated nanoparticles as potential pharmaceutical agents. Given its scope, the book will be of interest to all scientists and students wanting to learn more about the synthesis and applications of green nanoparticles.
Book Synopsis Nanoscale Materials by : Luis M. Liz-Marzán
Download or read book Nanoscale Materials written by Luis M. Liz-Marzán and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organized nanoassemblies of inorganic nanoparticles and organic molecules are building blocks of nanodevices, whether they are designed to perform molecular level computing, sense the environment or improve the catalytic properties of a material. The key to creation of these hybrid nanostructures lies in understanding the chemistry at a fundamental level. This book serves as a reference book for researchers by providing fundamental understanding of many nanoscopic materials.
