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Author : Thomas Kroll
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (188 download)
Download or read book On the Electronic Structure of Layered Sodium Cobalt Oxides written by Thomas Kroll and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Electronic Structure of Layered Sodium Cobalt Oxides written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of an unexpectedly large thermopower accompanied by low resistivity and low thermal conductivity in NaxCoO2 raised significant research interest in these materials and let to a number of experimental and theoretical investigations. This interest has strongly been reinforced by the discovery of superconductivity in the hydrated compound Na0.35CoO2 " .3H2O in 2003, and thus, NaxCoO2 experiences an again increasing attention. The similarity of the Na cobaltates to the high temperature superconductors (HTSC) - both are transition metal oxides and adopt a layered crystal structure with quasi-two-dimensional (Cu, Co)O2 layers - is an important aspect of the research activities. In contrast to the HTSC cuprates however, the CoO2 layers consist of edge sharing CoO6 octahedra which are distorted in such a way that the resulting local symmetry is trigonal. The trigonal coordination of the Co sites results in geometric frustration which favours unconventional electronic ground states. The geometrically frustrated CoO2 sublattice also exists in the nonhydrated parent compound NaxCoO2, which has been investigated in this work. The intercalation of water into the parent compound is expected to have little effect on the Fermi surface beside the increase in two dimensionality due to the effect of expansion. Upon lowering the symmetry from cubic to trigonal, the t2g states split into states with eg_and a1g symmetry. Measurements of polarisation and temperature dependent soft X-ray absorption have been performed on a wide doping range of NaxCoO2 single crystals. Beside the Co L_2,3-edges, the O K-edge and the Na K-edge have been measured. These measurements show strong polarisation dependencies especially for the excitations into the lower lying a1g energy level. In addition to that, also an unexpected polarisation dependence for higher energies has been observed, which should be absent in trigonal symmetry. These results point towards a deviation of the local trigonal s.
Author : Tsuyoshi Takami
Publisher : CRC Press
ISBN 13 : 9814463329
Total Pages : 182 pages
Book Rating : 4.8/5 (144 download)
Download or read book Functional Cobalt Oxides written by Tsuyoshi Takami and published by CRC Press. This book was released on 2014-08-04 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores why cobalt oxides have drawn interest as functional materials due to their peculiar physical properties partially originating from a rich variety of the valence and spin state of cobalt ions. The book starts with the basics of condensed matter physics and advances toward the strong electron correlation system stage. It also provides up-to-date information on topics, such as thermoelectric power, superconductivity, solid oxide fuel cells, and nanostructure effect.
Author : Bernard Raveau
Publisher : John Wiley & Sons
ISBN 13 : 3527645535
Total Pages : 543 pages
Book Rating : 4.5/5 (276 download)
Download or read book Cobalt Oxides written by Bernard Raveau and published by John Wiley & Sons. This book was released on 2012-10-11 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unparalleled in the breadth and depth of its coverage of all important aspects, this book systematically treats the electronic and magnetic properties of stoichiometric and non-stoichiometric cobaltites in both ordered and disordered phases. Authored by a pioneer and a rising star in the field, the monograph summarizes, organizes and streamlines the otherwise difficult-to-obtain information on this topic. An introductory chapter sets forth the crystal chemistry of cobalt oxides to lay the groundwork for an understanding of the complex phenomena observed in this materials class. Special emphasis is placed on a comprehensive discussion of cobaltite physical properties in different structural families. Providing a thorough introduction to cobalt oxides from a chemical and physical viewpoint as a basis for understanding their intricacies, this is a must-have for both experienced researchers as well as entrants to the field.
Author : Peter David Alexander Mann
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (89 download)
Download or read book Electronic Structure of Layered Transition Metal Oxides written by Peter David Alexander Mann and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John W. Diggle
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (72 download)
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Author : Lannie K. Tran
Publisher : Nova Publishers
ISBN 13 : 9781600215407
Total Pages : 234 pages
Book Rating : 4.2/5 (154 download)
Download or read book New Research on Superconductivity and Magnetism written by Lannie K. Tran and published by Nova Publishers. This book was released on 2007 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconductivity is the ability of certain materials to conduct electrical current with no resistance and extremely low losses. High temperature superconductors, such as La2-xSrxCuOx (Tc=40K) and YBa2Cu3O7-x (Tc=90K), were discovered in 1987 and have been actively studied since. In spite of an intense, world-wide, research effort during this time, a complete understanding of the copper oxide (cuprate) materials is still lacking. Many fundamental questions are unanswered, particularly the mechanism by which high-Tc superconductivity occurs. More broadly, the cuprates are in a class of solids with strong electron-electron interactions. An understanding of such "strongly correlated" solids is perhaps the major unsolved problem of condensed matter physics with over ten thousand researchers working on this topic. High-Tc superconductors also have significant potential for applications in technologies ranging from electric power generation and transmission to digital electronics. This ability to carry large amounts of current can be applied to electric power devices such as motors and generators, and to electricity transmission in power lines. For example, superconductors can carry as much as 100 times the amount of electricity of ordinary copper or aluminium wires of the same size. Many universities, research institutes and companies are working to develop high-Tc superconductivity applications and considerable progress has been made. This volume brings together new leading-edge research in the field.
Author :
Publisher : John Wiley & Sons
ISBN 13 : 1789450136
Total Pages : 386 pages
Book Rating : 4.7/5 (894 download)
Download or read book Na-ion Batteries written by and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers both the fundamental and applied aspects of advanced Na-ion batteries (NIB) which have proven to be a potential challenger to Li-ion batteries. Both the chemistry and design of positive and negative electrode materials are examined. In NIB, the electrolyte is also a crucial part of the batteries and the recent research, showing a possible alternative to classical electrolytes – with the development of ionic liquid-based electrolytes – is also explored. Cycling performance in NIB is also strongly associated with the quality of the electrode-electrolyte interface, where electrolyte degradation takes place; thus, Na-ion Batteries details the recent achievements in furthering knowledge of this interface. Finally, as the ultimate goal is commercialization of this new electrical storage technology, the last chapters are dedicated to the industrial point of view, given by two startup companies, who developed two different NIB chemistries for complementary applications and markets.
Author : Kazunori Ozawa
Publisher : John Wiley & Sons
ISBN 13 : 3527644652
Total Pages : 338 pages
Book Rating : 4.5/5 (276 download)
Download or read book Lithium Ion Rechargeable Batteries written by Kazunori Ozawa and published by John Wiley & Sons. This book was released on 2012-01-09 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting out with an introduction to the fundamentals of lithium ion batteries, this book begins by describing in detail the new materials for all four major uses as cathodes, anodes, separators, and electrolytes. It then goes on to address such critical issues as self-discharge and passivation effects, highlighting lithium ion diffusion and its profound effect on a battery's power density, life cycle and safety issues. The monograph concludes with a detailed chapter on lithium ion battery use in hybrid electric vehicles. Invaluable reading for materials scientists, electrochemists, physicists, and those working in the automobile and electrotechnical industries, as well as those working in computer hardware and the semiconductor industry.
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Total Pages : 754 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anant V. Narlikar
Publisher : Springer Science & Business Media
ISBN 13 : 3540272941
Total Pages : 1122 pages
Book Rating : 4.5/5 (42 download)
Download or read book Frontiers in Superconducting Materials written by Anant V. Narlikar and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frontiers in Superconducting Materials gives a state-of-the-art report of the most important topics of the current research in superconductive materials and related phenomena. It comprises 30 chapters written by renowned international experts in the field. It is of central interest to researchers and specialists in Physics and Materials Science, both in academic and industrial research, as well as advanced students. It also addresses electronic and electrical engineers. Even non-specialists interested in superconductivity might find some useful answers.
Author : Electrochemical Society. Meeting
Publisher : The Electrochemical Society
ISBN 13 : 9781566774123
Total Pages : 332 pages
Book Rating : 4.7/5 (741 download)
Download or read book Low Temperature Electronics and Low Temperature Cofired Ceramic Based Electronic Devices written by Electrochemical Society. Meeting and published by The Electrochemical Society. This book was released on 2004 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jung-Ki Park
Publisher : John Wiley & Sons
ISBN 13 : 3527650423
Total Pages : 388 pages
Book Rating : 4.5/5 (276 download)
Download or read book Principles and Applications of Lithium Secondary Batteries written by Jung-Ki Park and published by John Wiley & Sons. This book was released on 2012-06-13 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium secondary batteries have been key to mobile electronics since 1990. Large-format batteries typically for electric vehicles and energy storage systems are attracting much attention due to current energy and environmental issues. Lithium batteries are expected to play a central role in boosting green technologies. Therefore, a large number of scientists and engineers are carrying out research and development on lithium secondary batteries. The book is written in a straightforward fashion suitable for undergraduate and graduate students, as well as scientists, and engineers starting out in the field. The chapters in this book have been thoroughly edited by a collective of experts to achieve a cohesive book with a consistent style, level, and philosophy. They cover a wide range of topics, including principles and technologies of key materials such as the cathode, anode, electrolyte, and separator. Battery technologies such as design, manufacturing processes, and evaluation methods as well as applications are addressed. In addition, analytical methods for determining electrochemical and other properties of batteries are also included. Hence, this book is a must-have for everyone interested in obtaining all the basic information on lithium secondary batteries.
Author : Stephen Skinner
Publisher : Royal Society of Chemistry
ISBN 13 : 1788010906
Total Pages : 262 pages
Book Rating : 4.7/5 (88 download)
Download or read book Energy Storage and Conversion Materials written by Stephen Skinner and published by Royal Society of Chemistry. This book was released on 2019-11-22 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Storage and Conversion Materials describes the application of inorganic materials in the storage and conversion of energy.
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Author : Tong Zhou
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (911 download)
Download or read book Crystal Structure and Properties of Sodium Cobalt Oxide, NA[inferior X]CoO[inferior 2] written by Tong Zhou and published by . This book was released on 2007 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George Zhao
Publisher : CRC Press
ISBN 13 : 1000625931
Total Pages : 765 pages
Book Rating : 4.0/5 (6 download)
Download or read book Handbook of Sodium-Ion Batteries written by George Zhao and published by CRC Press. This book was released on 2023-01-31 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for batteries has grown exponentially in response to the increase in global energy demand and to the ambitious goals that governments have set up for sustainable energy development worldwide, especially in developed countries. While lithium-ion batteries currently dominate the energy storage market, the limited and unevenly distributed lithium resources have caused huge concerns over the sustainability of the lithium-ion battery technology. Sodium-ion batteries have significant benefits over lithium-ion batteries, including sodium’s abundance in the Earth’s crust. These batteries have therefore gained research interest, and efforts are being made to use them in place of lithium-ion batteries. While the past decade has witnessed significant research advances and breakthroughs in developing the sodium-ion battery technology, there still remain fundamental challenges that must be overcome to push the technology forward. This book comprises 13 chapters that discuss the fundamental challenges, electrode materials, electrolytes, separators, advanced instrumental analysis techniques, and computational methods for sodium-ion batteries from renowned scientists. The book is a unique combination of all aspects associated with sodium-ion batteries and can therefore be used as a handbook.
Author :
Publisher : Newnes
ISBN 13 : 0080965296
Total Pages : 7694 pages
Book Rating : 4.0/5 (89 download)
Download or read book Comprehensive Inorganic Chemistry II written by and published by Newnes. This book was released on 2013-07-23 with total page 7694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Inorganic Chemistry II, Nine Volume Set reviews and examines topics of relevance to today’s inorganic chemists. Covering more interdisciplinary and high impact areas, Comprehensive Inorganic Chemistry II includes biological inorganic chemistry, solid state chemistry, materials chemistry, and nanoscience. The work is designed to follow on, with a different viewpoint and format, from our 1973 work, Comprehensive Inorganic Chemistry, edited by Bailar, Emeléus, Nyholm, and Trotman-Dickenson, which has received over 2,000 citations. The new work will also complement other recent Elsevier works in this area, Comprehensive Coordination Chemistry and Comprehensive Organometallic Chemistry, to form a trio of works covering the whole of modern inorganic chemistry. Chapters are designed to provide a valuable, long-standing scientific resource for both advanced students new to an area and researchers who need further background or answers to a particular problem on the elements, their compounds, or applications. Chapters are written by teams of leading experts, under the guidance of the Volume Editors and the Editors-in-Chief. The articles are written at a level that allows undergraduate students to understand the material, while providing active researchers with a ready reference resource for information in the field. The chapters will not provide basic data on the elements, which is available from many sources (and the original work), but instead concentrate on applications of the elements and their compounds. Provides a comprehensive review which serves to put many advances in perspective and allows the reader to make connections to related fields, such as: biological inorganic chemistry, materials chemistry, solid state chemistry and nanoscience Inorganic chemistry is rapidly developing, which brings about the need for a reference resource such as this that summarise recent developments and simultaneously provide background information Forms the new definitive source for researchers interested in elements and their applications; completely replacing the highly cited first edition, which published in 1973
