Download or read book Reduction of Metal Oxide to Metal Using Ionic Liquids written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel pathway for the high efficiency production of metal from metal oxide means of electrolysis in ionic liquids at low temperature was investigated. The main emphasis was to eliminate the use of carbon and high temperature application in the reduction of metal oxides to metals. The emphasis of this research was to produce metals such as Zn, and Pb that are normally produced by the application of very high temperatures. The reduction of zinc oxide to zinc and lead oxide to lead were investigated. This study involved three steps in accomplishing the final goal of reduction of metal oxide to metal using ionic liquids: 1) Dissolution of metal oxide in an ionic liquid, 2) Determination of reduction potential using cyclic voltammetry (CV) and 3) Reduction of the dissolved metal oxide. Ionic liquids provide additional advantage by offering a wide potential range for the deposition. In each and every step of the process, more than one process variable has been examined. Experimental results for electrochemical extraction of Zn from ZnO and Pb from PbO using eutectic mixtures of Urea ((NH2)2CO) and Choline chloride (HOC2H4N(CH3)3+Cl- ) or (ChCl) in a molar ratio 2:1, varying voltage and temperatures were carried out. Fourier Transform Infra-Red (FTIR) spectroscopy studies of ionic liquids with and without metal oxide additions were conducted. FTIR and induction coupled plasma spectroscopy (ICPS) was used in the characterization of the metal oxide dissolved ionic liquid. Electrochemical experiments were conducted using EG & G potentiostat/galvanostat with three electrode cell systems. Cyclic voltammetry was used in the determination of reduction potentials for the deposition of metals. Chronoamperometric experiments were carried out in the potential range of -0.6V to -1.9V for lead and -1.4V to -1.9V for zinc. The deposits were characterized using XRD and SEM-EDS for phase, morphological and elemental analysis. The results showed that pure metal was deposited on the cathode. Successful extraction of metal from metal oxide dissolved in Urea/ChCl (2:1) was accomplished. The current efficiencies were relatively high in both the metal deposition processes with current efficiency greater than 86% for lead and 95% for zinc. This technology will advance the metal oxide reduction process by increasing the process efficiency and also eliminate the production of CO2 which makes this an environmentally benign technology for metal extraction.
Download or read book Unveiling Mechanistic Implications of CO2 Reduction Driven by Protic Ionic Liquids on Electrodeposited Metal Oxide Thin Films written by Thabiso Kunene and published by . This book was released on 2021 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lastly, Chapter 6, is an exploration of the electrocatalytic effect of alloying Sn, Pb and Bi, which are all reported as being individually active catalysts for CO2 reduction to different extents. It is demonstrated that the well-known soldering alloy Bi50Sn22Pb28 (Rose's Metal = RM) promotes the conversion of CO2 to CO in MeCN electrolyte containing millimolar concentrations of the non-protic ionic liquid additive [BMIM]OTf. Planar RM electrocatalysts evolve CO with Faradaic efficiencies in excess of 80% with average geometric current densities of jtot = 3-10 mA/cm2. Ex-situ XPS analysis also showed evidence for the accumulation of metal oxides on the RM surface during CO2 electrocatalysis, which may influence the activity of the alloy.
Download or read book Molten Salts and Ionic Liquids 16 written by D. Fox and published by The Electrochemical Society. This book was released on 2009-08 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Molten Salts and Ionic Liquids 16¿, held during the PRiME 2008 joint international meeting of The Electrochemical Society and The Electrochemical Society of Japan, with the technical cosponsorship of the Japan Society of Applied Physics, the Korean Electrochemical Society, the Electrochemistry Division of the Royal Australian Chemical Institute, and the Chinese Society of Electrochemistry. This meeting was held in Honolulu, Hawaii, from October 12 to 17, 2008.
Download or read book Metal Oxides written by Maria Luisa Grilli and published by MDPI. This book was released on 2020-12-15 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue contains ten research papers, three of which review papers. It is a miscellaneous composition encompassing several applications where metal oxides play a key role. Some papers also give insights into novel synthesis methods and processes aiming to reduce negative environmental impacts and increase materials and process efficiency, thus also covering a broader concern of sustainability issues. The topics covered in this issues are: transparent conductive oxides, ceramic composites for tool applications, oxides nanoparticles for A-TIG welding, critical raw materials saving, metallurgical waste treatment, oxides for high temperature applications, nanostructured oxides and composites for gas sensing and desulfuration, and metal oxides sorbents for CO2 capture.
Download or read book Applications of Ionic Liquids in Science and Technology written by Scott Handy and published by BoD – Books on Demand. This book was released on 2011-09-22 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, of a two volume set on ionic liquids, focuses on the applications of ionic liquids in a growing range of areas. Throughout the 1990s, it seemed that most of the attention in the area of ionic liquids applications was directed toward their use as solvents for organic and transition-metal-catalyzed reactions. Certainly, this interest continues on to the present date, but the most innovative uses of ionic liquids span a much more diverse field than just synthesis. Some of the main topics of coverage include the application of RTILs in various electronic applications (batteries, capacitors, and light-emitting materials), polymers (synthesis and functionalization), nanomaterials (synthesis and stabilization), and separations. More unusual applications can be noted in the fields of biomass utilization, spectroscopy, optics, lubricants, fuels, and refrigerants. It is hoped that the diversity of this volume will serve as an inspiration for even further advances in the use of RTILs.
Download or read book Molten Salts and Ionic Liquids 19 written by W. Reichert and published by The Electrochemical Society. This book was released on 2014 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Process Engineering Principles in Materials Processing Energy and Environmental Technologies written by Shijie Wang and published by Springer. This book was released on 2017-02-07 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection offers new research findings, innovations, and industrial technological developments in extractive metallurgy, energy and environment, and materials processing. Technical topics included in the book are thermodynamics and kinetics of metallurgical reactions, electrochemical processing of materials, plasma processing of materials, composite materials, ionic liquids, thermal energy storage, energy efficient and environmental cleaner technologies and process modeling. These topics are of interest not only to traditional base ferrous and non-ferrous metal industrial processes but also to new and upcoming technologies, and they play important roles in industrial growth and economy worldwide.
Download or read book New Directions in Mineral Processing Extractive Metallurgy Recycling and Waste Minimization written by Ramana G. Reddy and published by Springer Nature. This book was released on 2023-02-13 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection addresses new research and technology for increased efficiency, energy reduction, and waste minimization in mineral processing, extractive metallurgy, and recycling. Professor Patrick R. Taylor and his students have been studying these topics for the past 45 years. Chapters include new directions in: · Mineral Processing · Hydrometallurgy · Pyrometallurgy · Electrometallurgy · Metals and E waste recycling · Waste minimization (including by-product recovery) · Innovations in metallurgical engineering education and curriculum development
Download or read book Ionic Liquids written by Scott Handy and published by BoD – Books on Demand. This book was released on 2017-02-22 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ionic liquids, including the newer subcategory of deep eutectic solvents, continue to attract a great deal of research attention in an even increasing number of areas, including traditional areas such as synthesis (organic and materials), electrochemistry, and physical property studies and predictions, as well as less obvious areas such as lubrication and enzymatic transformations. In this volume, recent advances in a number of these different areas are reported and reviewed, thus granting some appreciation for the future that ionic liquid research holds and affording inspiration for those who have not previously considered the application of ionic liquids in their area of interest.
Download or read book En Route to the Industrial Applications of Ionic Liquids for Metal Oxide Production and Biomass Fractionation written by Francisco José Malaret and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrodeposition from Ionic Liquids written by Frank Endres and published by John Wiley & Sons. This book was released on 2017-02-23 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by distinguished experts in this expanding field and with specialist contributions, this overview is the first of its kind to focus on electrodeposition from ionic liquids. This second edition has been completely revised and updated with approximately 20% new content and has been expanded by five chapters to cover the following topics: -Bulk and Interface Theory -Nanoscale Imaging including AFM, In situ STM and UHV-STM -Impedance Spectroscopy -Process Scale-up including Brighteners -Speciation and Redox Properties. The result is essential reading for electrochemists, materials scientists, chemists in industry, physical chemists, chemical engineers, inorganic and organic chemists.
Download or read book Metal Nanoclusters in Catalysis and Materials Science The Issue of Size Control written by Benedetto Corain and published by Elsevier. This book was released on 2011-08-11 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Nanoclusters in Catalysis and Materials Science: The Issue of Size Control deals with the synthesis of metal nanoclusters along all known methodologies. Physical and chemical properties of metal nanoclusters relevant to their applications in chemical processing and materials science are covered thoroughly. Special attention is given to the role of metal nanoclusters size and shape in catalytic processes and catalytic applications relevant to industrial chemical processing.An excellent text for expanding the knowledge on the chemistry and physics of metal nanoclusters. Divided in two parts; Part I deals with general aspects of the matter and Part II has to be considered a useful handbook dealing with the production of metal nanoclusters, especially from their size-control point of view.* Divided into two parts for ease of reference: general and operational * Separation of synthetic aspects, physical properties and applications* Specific attention is given to the task of metal nanoclusters size-control
Download or read book Metal Oxide Based Heterostructures written by Naveen Kumar and published by Elsevier. This book was released on 2022-11-13 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide–Based Heterostructures: Fabrication and Applications provides information on synthesis strategies, structural and hierarchical features, morphological characteristics of metal oxide–based heterostructures, and their diverse applications. This book begins with an introduction to the various multidimensional heterostructures, synthesis aspects, and techniques used to control the formation of heterostructures. Then, the impact of synthesis routes on the formation of mixed metal oxide heterostructures and their properties are analyzed. The effect of nonmetal doping, metal doping, and composites of metal oxide heterostructures on the properties of heterostructures is also addressed and that also includes opportunities for optimization of the material's performance for specific applications. Special attention is given to the surface characteristics of the metal oxide heterostructures and their impact on the material's performance, and the applications of metal oxide heterostructures in various fields such as environmental remediation, sensing, organic catalysis, photovoltaics, light emitting materials, and hydrogen production. - Introduces key principles for metal oxide heterostructures, their properties, key characteristics, and synthesis routes - Emphasizes the relationship between synthesis strategies and material performance, including optimization strategies such as tailoring the material's surface characteristics or structure - Discusses metal oxide heterostructures and their application in lighting and displays, energy, environment, and sensing
Download or read book Nanotechnology Based Industrial Applications of Ionic Liquids written by Inamuddin and published by Springer Nature. This book was released on 2020-09-03 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous solvents used in chemical processes have poisonous and unsafe properties that pose significant ecological concerns ranging from atmospheric emissions to the contamination of water effluents. To combat these ecological threats, over the course of the past two decades, the field of green chemistry has grown to develop more natural reaction processes and techniques involving the use of nonconventional solvents to diminish waste solvent production and thus decrease negative impact on the environment. Ionic liquids in particular are more environmentally friendly substitutes to conventional solvents, and as such, have seen more widespread use in the past decade. They have been used in such processes as extraction, separation, purification of organic, inorganic, and bioinorganic compounds, reaction media in biochemical and chemical catalysis, green organic and drug synthesis, among other industrial applications. Thus, in proving themselves a suitable greener media for economic viability in chemical processes, ionic liquids are leading to more sustainable development. This edition explores the application of ionic liquids as a green solvent. It contains a state-of-the-art overview on ionic liquids as green solvents for chemical processes and techniques, as well as some of their useful industrial applications.
Download or read book Solution Methods for Metal Oxide Nanostructures written by Rajaram S. Mane and published by Elsevier. This book was released on 2023-06-27 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solution Methods for Metal Oxide Nanostructures reviews solution processes that are used for synthesizing 1D, 2D and 3D metal oxide nanostructures in either thin film or in powder form for various applications. Wet-chemical synthesis methods deal with chemical reactions in the solution phase using precursors at proper experimental conditions. Wet-chemical synthesis routes offer a high degree of controllability and reproducibility for 2D nanomaterial fabrication. Solvothermal synthesis, template synthesis, self-assembly, oriented attachment, hot-injection, and interface-mediated synthesis are the main wet-chemical synthesis routes for 2D nanomaterials. Solution Methods for Metal Oxide Nanostructures also addresses the thin film deposition metal oxides nanostructures, which plays a very important role in many areas of chemistry, physics and materials science.Each chapter includes information on a key solution method and their application in the design of metal oxide nanostructured materials with optimized properties for important applications. The pros and cons of the solution method and their significance and future scope is also discussed in each chapter. Readers are provided with the fundamental understanding of the key concepts of solution synthesis methods for fabricating materials and the information needed to help them select the appropriate method for the desired application. - Reviews the most relevant wet chemical solution methods for metal oxide nanostructures, including sol-gel, solvothermal, hydrothermal, co-precipitation methods, and more - Addresses thin film deposition techniques for metal oxide nanostructures, such as spray-pyrolysis, electrodeposition, spin coating and self-assembly - Discusses the pros and cons of each solution method and its significance and future opportunities
Download or read book The ECPH Encyclopedia of Mining and Metallurgy written by Xu Kuangdi and published by Springer Nature. This book was released on with total page 2429 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanocatalysis in Ionic Liquids written by Martin H. G. Prechtl and published by John Wiley & Sons. This book was released on 2016-10-07 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited and written by renowned experts in the field, this is the first book to reflect the state of the art of nanocatalysis in ionic liquids. Divided into two core areas, the first part of the book describes the different classes of metal nanoparticles as well as their synthesis in ionic liquids, while the second focuses on such emerging issues as the application of such systems to energy and biomass conversion.
