On Flame Synthesis Of Metal Oxide Nanoparticles
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On Flame Synthesis Of Metal Oxide Nanoparticles
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Author : Manfred Geier
language : en
Publisher:
Release Date : 2009
On Flame Synthesis Of Metal Oxide Nanoparticles written by Manfred Geier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Ceramics categories.
Semi Conducting Metal Oxide Nanoparticles From A Low Pressure Premixed H 1tn2 O 1tn2 Ar Flame Synthesis And Characterization
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Author : Pascal Onyibo Ifeacho
language : en
Publisher: Cuvillier Verlag
Release Date : 2008
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 has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Flame Synthesis And Doping Of Metal Oxide Nanowires And Their Application In Solar Water Splitting
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Author : Lili Cai
language : en
Publisher:
Release Date : 2016
Flame Synthesis And Doping Of Metal Oxide Nanowires And Their Application In Solar Water Splitting written by Lili Cai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Considering the increasing energy and environmental problems associated with the exhaustible fossil fuels, renewable energy conversion devices have attracted tremendous attention, which hold the promise to supply the fuel and electricity in a sustainable way. For many of these devices, such as batteries, fuel cells, solar cells and solar water splitting cells, metal oxides are very important functional materials due to their earth abundance, good stability and diverse properties. Recently nanowire-based metal oxides have enabled revolutionary advances in various energy conversion devices, because of their unique physical and chemical properties resulting from the high aspect ratio and large surface area. Despite their advantages, practical applications of metal oxide nanowires are hindered, as conventional synthesis methods have limitations for large scale production. Flame synthesis can potentially solve this large-scale production issue for metal oxide nanowires, given its demonstrated scalability in the industrial production of nanoparticles. However, only until very recently has flame synthesis been applied to metal oxide nanowires. More research is needed to develop advanced flame synthesis method for metal oxide nanowires, to understand the mechanism to well control the size, shape and compositions for reliable manufacture, and to evaluate their quality and functionalities in real devices. This thesis presents a novel flame vapor deposition method for the synthesis of metal oxide nanowires with the capabilities of rapid rate, good uniformity over large area and broad substrate choice. Through the investigation of growth mechanism, good control over the morphology and composition was achieved by tuning the process parameters such as fuel/air ratio, source temperature, substrate material and temperature. In addition to synthesis, flame-based doping method (sol-flame doping) was innovated for controllable doping of metal oxide NWs to modify the properties of host materials at the nanometer scale. This sol-flame doping method not only preserves the morphology and crystallinity of the host NWs, but also allows fine control over the dopant concentration by simply varying the concentration of dopant precursor solution. With this method, significant enhancement of the electrocatalytic activity towards oxygen evolution reaction was achieved for TiO2 NWs (up to 760 mV reduction of the overpotential), attributing to simultaneously improved surface charge transfer kinetics and increased bulk conductivity by doping. Finally, the flame-synthesized metal oxide nanowires were implemented as a photoanode in photoelectrochemical water splitting. By rational design and scalable fabrication, the WO3/BiVO4/Ni:FeOOH composite nanowire photoanode generated a high photocurrent of 4.5 mA/cm2 at a potential of 1.23 VRHE under simulated sunlight, which is among the highest produced by any WO3/BiVO4 based photoanodes. With the demonstrated rapid rate, good controllability and superior performance of the flame-produced metal oxide nanowires, these flame synthesis and doping methods can potentially enable future generation of energy devices by removing the barrier for large-scale production of tailored metal oxide nanowires.
Laser Diagnostics In Spray Flame Mixing Processes During The Synthesis Of Metal Oxide Nanoparticles
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Author : Malte F. B. Stodt
language : en
Publisher:
Release Date : 2024
Laser Diagnostics In Spray Flame Mixing Processes During The Synthesis Of Metal Oxide Nanoparticles written by Malte F. B. Stodt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024 with categories.
Metal Oxide Nanoparticles In Organic Solvents
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Author : Markus Niederberger
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-09-17
Metal Oxide Nanoparticles In Organic Solvents written by Markus Niederberger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-17 with Science categories.
Metal Oxide Nanoparticles in Organic Solvents discusses recent advances in the chemistry involved for the controlled synthesis and assembly of metal oxide nanoparticles, the characterizations required by such nanoobjects, and their size and shape depending properties. In the last few years, a valuable alternative to the well-known aqueous sol-gel processes was developed in the form of nonaqueous solution routes. Metal Oxide Nanoparticles in Organic Solvents reviews and compares surfactant- and solvent-controlled routes, as well as providing an overview of techniques for the characterization of metal oxide nanoparticles, crystallization pathways, the physical properties of metal oxide nanoparticles, their applications in diverse fields of technology, and their assembly into larger nano- and mesostructures. Researchers and postgraduates in the fields of nanomaterials and sol-gel chemistry will appreciate this book’s informative approach to chemical formation mechanisms in relation to metal oxides.
Flame Synthesis And Applications Of Metal Oxide Nanowires
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Author : Pratap Mahesh Rao
language : en
Publisher:
Release Date : 2013
Flame Synthesis And Applications Of Metal Oxide Nanowires written by Pratap Mahesh Rao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
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.
Flame Spray Technology
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Author : Rafael M. Trommer
language : en
Publisher: Springer
Release Date : 2015-04-28
Flame Spray Technology written by Rafael M. Trommer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-28 with Technology & Engineering categories.
This book presents a complete and updated overview of Flame Spray process, from its History to the Apparatus necessary for the synthesis of nanostructures. It addresses not only the materials produced by this technique, but also their properties, such as crystallinity and crystallite size, specific surface area, particle size and morphology. Also, the principles of nanoparticle formation are described. It is a useful read to all those interested in low cost synthesis of nanostructured powders and coatings.
Flame Synthesis Of Transition Metal Oxide Nanostructures
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Author : Aaron Mark Taylor
language : en
Publisher:
Release Date : 2008
Flame Synthesis Of Transition Metal Oxide Nanostructures written by Aaron Mark Taylor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Flame spraying categories.
Metal Oxide Nanostructures Chemistry
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Author : Jean-Pierre Jolivet
language : en
Publisher: Oxford University Press
Release Date : 2019-01-04
Metal Oxide Nanostructures Chemistry written by Jean-Pierre Jolivet and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-04 with Science categories.
This much-anticipated new edition of Jolivet's work builds on the edition published in 2000. It is entirely updated, restructured and increased in content. The book focuses on the formation by techniques of green chemistry of oxide nanoparticles having a technological interest. Jolivet introduces the most recent concepts and modelings such as dynamics of particle growth, ordered aggregation, ionic and electronic interfacial transfers. A general view of the metal hydroxides, oxy-hydroxides and oxides through the periodic table is given, highlighting the influence of the synthesis conditions on crystalline structure, size and morphology of nanoparticles. The formation of aluminum, iron, titanium, manganese and zirconium oxides are specifically studied. These nanomaterials have a special interest in many technological fields such as ceramic powders, catalysis and photocatalysis, colored pigments, polymers, cosmetics and also in some biological or environmental phenomena.
Metal Oxide Nanoparticles 2 Volume Set
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Author : Oliver Diwald
language : de
Publisher: John Wiley & Sons
Release Date : 2021-09-14
Metal Oxide Nanoparticles 2 Volume Set written by Oliver Diwald and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-14 with Technology & Engineering categories.
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.