Download or read book Electrical Conductivity and Interface Properties of Oxygen Ion Conducting Materials written by Maarten Johannes Verkerk and published by . This book was released on 1982 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Conducting Materials written by A. R. Kulkarni and published by Alpha Science Int'l Ltd.. This book was released on 2001 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid State Ionics is an interdisciplinary branch of science and technology related with the study of ionically conducting materials with major thrust directed towards energy conversion, and storage and pollution control monitoring. This book covers theoretical, experimental and applied aspects of physics, chemistry and engineering of solid electrolytes and mixed conductors with emphasis on applications in batteries, sensors, fuel cells, electrochromics and electrocatalysis. Researchers and graduates students working in the area of solid state ionics, material science, solid state chemistry and electrochemistry will find this book to be of utmost use.
Download or read book Philosophy of Technology written by Maarten J Verkerk and published by Routledge. This book was released on 2015-09-16 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Philosophy of Technology: An introduction for technology and business students is an accessible guide to technology’s changes , their ubiquitousness, and the many questions these raise. Designed for those with no philosophical background in mind, it is ideal for technology and engineering students or specialists who want to learn to think critically about how their work influences society and our daily lives. The technological, business environment and daily experiences are the starting point of the book and the authors’ reflect upon these practices from a philosophical point of view. The text goes on to present a critical analysis of the subject including development, manufacturing, sales and marketing and the use of technological products and services. The abstract ideas are made easier to grasp with a story-telling approach: a vivid history of the discipline and colourful portraits of the core thinkers in this domain, as well as four case studies drawing from various engineering disciplines to demonstrate how philosophy can and should influence technology in practice. The first comprehensive introduction to this vibrant young sub-discipline in over 20 years, this is an ideal textbook for students of technology and engineering beginning a course or project in the philosophy of their subject.
Download or read book Oxygen Ion and Mixed Conductors and Their Technological Applications written by H.L. Tuller and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in the development of oxygen ion and mixed conductors is responsible for innovations in gas sensors, fuel cells, oxygen permeation membranes, oxygen pumps and electrolyzers. Commercialization has been impeded by material stability and compatibility issues, high fabrication costs and an inadequate understanding of the interfacial phenomena controlling the operation of the devices. Here, a group of experts cover all the key topical areas, ranging from fundamentals relating to (a) defects, electrochemical and interfacial processes, (b) catalysis, electrocatalysis and gas reforming, to design and fabrication, including (c) advanced electroceramic processing methods, (d) materials selection and optimization, (e) and applications including scale-up, commercialization and competitive technologies. Readership: Materials scientists, chemists, physicists and chemical and electrical engineers, either first entering the field or active within it.
Download or read book Ionic and Mixed Conducting Ceramics 6 written by Mogens Mogensen and published by The Electrochemical Society. This book was released on 2008-12 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Ionic and Mixed Conducting Ceramics 6¿, held during the 213th meeting of The Electrochemical Society, in Phoenix, Arizona from May 18 to 23, 2008.
Download or read book Electrical Characteristics of Grain Boundaries in Oxygen Ion and Proton conducting Solid Oxide Electrolytes written by Chien-Ting Chen and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Polycrystalline solid oxide electrolytes have been applied in a wide variety of scientific fields including: fuel cells, gas sensors, and gas pumps. The key to operating these devices more efficiently lies in the electrical properties of the grain and grain boundary in such electrolytes. This particular study focuses on the electrical properties of mostly grain boundaries with a minor emphasis on grain interiors on a few popular solid oxide electrolytes: doped ZrO2, CeO2, LaGaO3, BaZrO3, and SrZrO3 that conducts either oxide ions or protons. This is because the grain boundaries in these electrolytes often determine the electrical conductivity of the materials. Through the examination of an average width of "electrical" grain boundaries in Y-doped BaZrO3, it was established that the width increases with decreasing dopant concentration, in accordance with what a space-charge model (i.e., the Mott-Schottky model) predicts. In addition, the current-voltage relationships under applied dc-bias of doped Y-doped CeO2, Sr-doped LaGaO3, Y-doped BaZrO3, and SrZrO3 show an ohmic to superohmic transition as the applied dc-bias exceeds the thermal voltage, consistent with the thermionic emission theory of a current flowing through a Schottky-type potential barrier at a solid-solid interface. These evidences unambiguously verify that the highly resistive nature of grain boundaries of these microcrystalline electrolytes originates from the potential barrier caused by the difference in the chemical potential in the grain and grain boundaries. Although the grain boundaries of these microcrystalline electrolytes are thought to be highly resistive, a completely different phenomenon occurs at the grain boundaries of doped ZrO2 and CeO2 as the grain size reduces to tens of nanometers--they start to conduct protons in a H2O saturated environment as temperature drops below around 150 °C. Through a dopant concentration dependence of electrical conductivity study on dense fluorite-structured, nanocrystalline Gd-doped CeO2, it was found as hypothesized that the bulk defect chemistry does not play a role in determining such protonic conductivity due to the invariance of the protonic conductivity with different dopant concentrations. Encouragingly, this result implies that the protonic conduction may very well exist in the grain boundaries of other solid electrolytes with similar grain size and not necessarily limited to the fluorite structure. Finally, the last part of this dissertation focuses on oxygen vacancy dynamics in the grain interior in an extreme case of heavily doped solid oxide electrolyte where high degree of dopant-oxygen vacancies association is expected to occur. In this study, a combined 89Y MAS NMR and impedance spectroscopy was performed on 59 cat% Y-doped ZrO2 over a wide range of temperature (from ambient to 500 °C for NMR and 350 to 700 °C) yielding very similar hopping frequencies and their respective activation energies (~1.4 eV) between the two spectroscopies. More importantly, an average hopping distance of ~ 7.5±1.0 Å as determined by NMR allows the computation of the mobilities, which when combined with the conductivity results from impedance spectroscopy, ultimately allows the determination of the concentration of mobile charge carriers, i.e., oxygen vacancies in this system.
Download or read book Process Intensification written by Jan Harmsen and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-07-20 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Process Intensification is a comprehensive textbook and treats the theory of process intensification design, and all innovation steps from idea generation to commercial implementation, and all focused on contributing to the UN Sustainable Development Goals. This book covers the ‘hard’ elements of design, modelling, and experimental validations and the ‘soft’ elements, values of engineers, interests of stakeholders and beliefs of society.
Download or read book Proceedings of the Third International Symposium on Ionic and Mixed Conducting Ceramics written by T. A. Ramanarayanan and published by The Electrochemical Society. This book was released on 1998 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intermediate Temperature Solid Oxide Fuel Cells written by Gurbinder Kaur and published by Elsevier. This book was released on 2019-11-21 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intermediate Temperature Solid Oxide Fuel Cells: Electrolytes, Electrodes and Interconnects introduces the fundamental principles of intermediate solid oxide fuel cells technology. It provides the reader with a broad understanding and practical knowledge of the electrodes, pyrochlore/perovskite/oxide electrolytes and interconnects which form the backbone of the Solid Oxide Fuel Cell (SOFC) unit. Opening with an introduction to the thermodynamics, physiochemical and electrochemical behavior of Solid Oxide Fuel Cells (SOFC), the book also discusses specific materials, including low temperature brownmillerites and aurivillius electrolytes, as well as pyrochlore interconnects. This book analyzes the basic concepts, providing cutting-edge information for both researchers and students. It is a complete reference for Intermediate Solid Oxide Fuel Cells technology that will be a vital resource for those working in materials science, fuel cells and solid state chemistry. Provides a single source of information on glass, electrolytes, interconnects, vanadates, pyrochlores and perovskite SOFC Includes illustrations that provide a clear visual explanation of concepts being discussed Progresses from a discussion of basic concepts that will enable readers to easily comprehend the subject matter
Download or read book Oxide Semiconductors for Solar Energy Conversion written by Janusz Nowotny and published by CRC Press. This book was released on 2016-04-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxide semiconductors, including titanium dioxide (TiO2), are increasingly being considered as replacements for silicon in the development of the next generation of solar cells. Oxide Semiconductors for Solar Energy Conversion: Titanium Dioxide presents the basic properties of binary metal oxide semiconductors and the performance-related properties
Download or read book Ionic and Mixed Conducting Ceramics written by T. A. Ramanarayanan and published by The Electrochemical Society. This book was released on 2002 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solid State Ionics Materials Devices Procs Of The 7th Asian Conf written by B V R Chowdari and published by World Scientific. This book was released on 2000-10-27 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid state ionics, being a multidisciplinary area, is expected to grow at a faster rate in the new millennium, prompting the discovery of new materials and devices, as well as helping to optimize the known devices, especially the portable power sources and display systems. The Asian Society for Solid State Ionics (ASSSI) plays a significant role in bringing together researchers from the Asian countries, every two years, to exchange notes and ideas, to foster friendship and collaboration, and to discuss the prospects.The topics covered in this volume are: ion dynamics, theoretical modeling, ion-conducting polymers, gels and ceramics, glasses, crystalline materials including nano-phases, composites, electrode/electrolyte interfaces and novel experimental techniques. Papers on crystalline materials deal with ion conduction in Li, Na, Ag, Tl, F and O-containing compounds. Materials and device aspects have received wide coverage, especially the areas of lithium ion batteries (LIBs) and solid oxide fuel cells (SOFCs).Rechargeable high energy density LIBs, especially those employing immobilized gel or polymer electrolyte, are the favorite portable power sources in the new millennium. As expected, a large number of papers on both cathodes and polymer electrolytes for LIBs were presented at the conference. The papers on fuel cells almost exclusively deal with SOFCs, indicating the great importance being given to this area in Japan and China. A breakthrough in materials and technology of SOFC is expected in the coming decade. This volume will be useful not only to the active researchers in the field but also to youngsters entering the exciting area of solid state ionics.
Download or read book The Normative Nature of Social Practices and Ethics in Professional Environments written by de Vries, Marc J. and published by IGI Global. This book was released on 2019-04-12 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professionals function in what can be called “social practices.” Norms in the practice set professionals’ responsibilities and rights and classify what is seen as morally proper and improper. Tensions arise when norms emerge that are not coherent with the nature of the practice. For example, when a hospital is assessed on the basis of economic criteria only, staff will feel uncomfortable and find difficulty in functioning properly in that practice. The Normative Nature of Social Practices and Ethics in Professional Environments is an essential research book that helps professionals in a variety of practices understand how normativity in their practice either helps or hampers them to function well and align with what they see as their personal and professional responsibility. Additionally, it explains the normative practical model/approach and how it can be applied to a series of concrete practices, as well as the role of innovative and disruptive technologies in these practices. Featuring a broad range of topics such as governance theory, sustainable development, and engineering, this book is ideally designed for managers, philosophers, sociologists, professionals, academicians, and researchers.
Download or read book Surfaces and Interfaces of Ceramic Materials written by L.C. Dufour and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the NATO Advanced Study Institute on Surfaces and Interfaces of Ceramic Materials, held on the Oleron island, France, in September 1988. This Institute was organized in nine months after receiving the agreement of the NATO Scientific Affairs Division. Despite this very short time, most of the lecturers contacted have accepted our invitation to prepare a specific talk. The meeting was held at "La Vieille Perrotine" on the Oleron island. This holiday village of the French CNRS is located near the Ocean in a natural area which contributed to create a very pleasant atmosphere favourable to develop interaction between the 91 participants in this Institute. First of all, the Institute was aimed at diffusing the foremost results on the characterization of and the role played by surfaces, grain boundaries and interfaces in preparation and overall properties of ceramic materials, mainly of oxide ceramics. Through its interdisciplinary character, the Institute was also aimed at developing interaction between scientists and engineers interested in basic and practical aspects of processing and use of ceramics.
Download or read book Surface and Near surface Chemistry of Oxide Materials written by Janusz Nowotny and published by Elsevier Publishing Company. This book was released on 1988 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to fill the gap in the scientific literature by providing a comprehensive overview on the surface and near-surface chemistry of oxide materials. Oxide materials are important in a wide range of technological applications, which has resulted in a large bibliography devoted to their properties. The range of practical applications of metal oxides has recently been significantly extended by the discovery of high T c oxide superconductors. Surface chemistry overlaps with several other disciplines and involves some specialized physical methods, therefore renown scientists active in various fields were invited to contribute to the book. The present volume involves surface characterization of metal oxides as well as surface and near-surface phenomena including gas-solid, solid-solid and liquid-solid interphases. Both basic problems and applied aspects are covered. The theoretical background of ideal and real surfaces as well as surface phenomena such as adsorption, segregation, interphase interactions, equilibration, etc., are dealt with. A comprehensive description is given of the most useful experimental techniques for studying surface and near-surface (grain boundary) chemistry of ceramic materials, oxide catalysts, semiconductors and other oxide materials of practical importance. The range of practical applications of metal oxides has recently been significantly extended by the discovery of high T c oxide superconductors. A special chapter is devoted to High T c oxide superconductors, which provides an up-to-date and thorough review of this currently ''hot topic'' which will be of great interest to a wide section of the scientific community.
Download or read book Solid State Ionics written by B. V. R. Chowdari and published by World Scientific. This book was released on 2000 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid atate ionics, being a multidisciplinary area, is expected to grow at a faster rate in the new millennium, prompting the discovery of new materials and devices, as well as helping to optimize the known devices, especially the portable power sources and display systems. The Asian Society for Solid State Ionics (ASSSI) plays a significant role in bringing together researchers from the Asian countries, every two years, to exchange notes and ideas, to foster friendship and collaboration, and to discuss the prospects. The topics covered in this volume are: ion dynamics, theoretical modeling, ion-conducting polymers, gels and ceramics, glasses, crystalline materials including nano-phases, composites, electrode/electrolyte interfaces and novel experimental techniques. Papers on crystalline materials deal with ion conduction in Li, Na, Ag, Tl, F and O-containing compounds. Materials and device aspects have received wide coverage, especially the areas of lithium ion batteries (LIBs) and solid oxidefuel cells,(SOFCs). Rechargeable high energy density LIBs, especially those employing immobilized gel or polymer electrolyte, are the favorite portable power sources in the new millennium. As expected, a large number of papers on both cathodes and polymer electrolytes for LIBs were presented at the conference. The papers on fuel cells almost exclusively deal with SOFCs, indicating the great importance being given to this area in Japan and China. A breakthrough in materials and technology of SOFC is expected in the coming decade. This volume will be useful not only to the active researchers in the field but also to youngsters entering the exciting area of solid state ionics.
Download or read book Solid State Ionics Advanced Materials For Emerging Technologies Proceedings Of The 10th Asian Conference written by B V R Chowdari and published by World Scientific. This book was released on 2006-06-07 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of solid state ionics deals with ionically conducting materials in the solid state and numerous devices based on such materials. Solid state ionic materials cover a wide spectrum, ranging from inorganic crystalline and polycrystalline solids, ceramics, glasses, polymers, composites and nano-scale materials. A large number of Scientists in Asia are engaged in research in solid state ionic materials and devices and since 1988. The Asian Society for solid state ionics has played a key role in organizing a series of bi-ennial conferences on solid state ionics in different Asian countries. The contributions in this volume were presented at the 10th conference in the series organized by the Postgraduate Institute of Science (PGIS) and the Faculty of Science, University of Peradeniya, Sri Lanka, which coincided with the 10th Anniversary of the Postgraduate Institute of Science (PGIS). The topics cover solid state ionic materials as well as such devices as solid state batteries, fuel cells, sensors, and electrochromic devices. The aspects covered include theoretical studies and modeling, experimental techniques, materials synthesis and characterization, device fabrication and characterization.
