Download or read book The Synthesis and Characterisation of Zintl Phases and Nasicon related Compounds written by Robert Charles Thied and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Zintl Phases for Thermoelectric Applications written by Tanghong Yi and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A high efficiency thermoelectric material requires being a "phonon glass -electron crystal". Zintl phase compounds can be engineered to combine a "phonon glass" with an "electron crystal" by selectively doping the system to optimize the electronic properties. Current research on thermoelectrics is concentrated on (I) chemical or physical changes to improve the existing materials such as doping and reducing particle size to nano-size and (II) new materials with superior thermoelectric properties. Chapters 2 and 3 have been focused on tuning the transport properties of existing materials to improve the thermoelectric performance. In chapters 4 and 5, new Zintl phases have been synthesized and investigated with respect to their thermoelectric properties. In chapter 2, silicon nanoparticles embedded Mg2Si/xSi nanocomposites have been synthesized at 623 K from MgH2 and Bi containing Si nanoparticle powders. This synthetic route avoids the production of oxides and lowers the formation temperature of Mg2Si. It also provides a route to homogeneously mixed Si nanoparitcles within a Mg2Si matrix. Powder X-ray diffraction (XRD), thermogravimetry/differential scanning calorimetry (TG/DSC), electron microprobe analysis (EMPA), and scanning transmission electron microscopy (STEM) are applied to characterize the phase and micro-structure. Thermoelectric properties measurements indicate that the thermal conductivity is reduced by a small amount of Si nano-inclusions, which is in agreement of our theoretical calculations. A dimensionless figure of merit zT ~ 0.7 is obtained at 775 K for 1% Bi doped Mg2Si/x Si with x = 0 and 2.5 mol.%. In chapter 3, magnetic and transport properties of a series of Te doped Yb14MnSb11 samples prepared by Sn flux method have been studied. Increasing amounts of Te increases the saturation moment of Yb14MnSb11−(x)Te(x) and magnetoresistence effect. Both Seebeck coefficient and electrical resistivity increase with increasing amount of Te as a result of decreasing carrier concentration. Approximately 12% improvement of zT has achieved for x = 0.07 at 1240 K. Thermoelectric properties of the compounds Yb11MSb9 (M = Ga, In) via self-flux synthesis, closely structure related to Yb14MnSb11, have been investigated in chapter 4. Particularly low lattice thermal conductivity values, less than 0.6 W/m*K, are obtained for both compounds. The low lattice thermal conductivity suggests that Yb11MSb9 (M = Ga, In) has the potential for high thermoelectric efficiency at high temperature if charge carrier doping can be optimized. A two-step solid-state method is developed to fabricate two rare-earth containing ternary phosphides, Eu3Ga2P4 and Eu3In2P4, and their thermoelectric properties are investigated in chapter 5. The powder XRD and TG-DSC are employed to characterize the phase purity and thermal stability. Electronic structures of both compounds are calculated and provide band-gaps of 0.60 and 0.29 eV for Eu3Ga2P4 and Eu3In2P4, respectively. Transport properties measurements suggest that these Zintl phosphides have the potential to be good high temperature thermoelectric materials with optimization of the charge carrier concentration by appropriate extrinsic dopants.
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1997 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.
Download or read book Synthesis and Characterization of Two Unusual Zintl Phases written by Ara Cho and published by . This book was released on 2004 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Ternary Zintl Phases written by Weir-Mirn Hurng and published by . This book was released on 1988 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography written by Pierre Villars and published by Walter de Gruyter. This book was released on 2012-12-21 with total page 1827 pages. Available in PDF, EPUB and Kindle. Book excerpt: By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
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.
Download or read book Fast Ion Transport in Solids written by B. Scrosati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main motivation for the organization of the Advanced Research Workshop in Belgirate was the promotion of discussions on the most recent issues and the future perspectives in the field of Solid State lonics. The location was chosen on purpose since Belgirate was the place were twenty years ago, also then under the sponsorship of NATO, the very first international meeting on this important and interdisciplinary field took place. That meeting was named "Fast Ion Transport in Solids" and gathered virtually everybody at that time having been active in any aspect of motion of ions in solids. The original Belgirate Meeting made for the first time visible the technological potential related to the phenomenon of the fast ionic transport in solids and, accordingly, the field was given the name "Solid State lonics". This field is now expanded to cover a wide range of technologies which includes chemical sensors for environmental and process control, electrochromic windows, mirrors and displays, fuel cells, high performance rechargeable batteries for stationary applications and electrotraction, chemotronics, semiconductor ionics, water electrolysis cells for hydrogen economy and other applications. The main idea for holding an anniversary meeting was that of discussing the most recent issues and the future perspectives of Solid State lonics just twenty years after it has started at the same location on the lake Maggiore in North Italy.
Download or read book Electrochemistry for Materials Science written by Walfried Plieth and published by Elsevier. This book was released on 2008-01-08 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the principles of electrochemistry with a special emphasis on materials science. This book is clearly organized around the main topic areas comprising electrolytes, electrodes, development of the potential differences in combining electrolytes with electrodes, the electrochemical double layer, mass transport, and charge transfer, making the subject matter more accessible.In the second part, several important areas for materials science are described in more detail. These chapters bridge the gap between the introductory textbooks and the more specialized literature. They feature the electrodeposition of metals and alloys, electrochemistry of oxides and semiconductors, intrinsically conducting polymers, and aspects of nanotechnology with an emphasis on the codeposition of nanoparticles.This book provides a good introduction into electrochemistry for the graduate student. For the research student as well as for the advanced reader there is sufficient information on the basic problems in special chapters. The book is suitable for students and researchers in chemistry, physics, engineering, as well as materials science.- Introduction into electrochemistry- Metal and alloy electrodeposition- Oxides and semiconductors, corrosion- Intrinsically conducting polymers- Codeposition of nanoparticles, multilayers
Download or read book Inorganic 3D Structures written by Angel Vegas and published by Springer Science & Business Media. This book was released on 2011-06-17 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: D. Santamaría-Pérez and F. Liebau : Structural relationships between intermetallic clathrates, porous tectosilicates and clathrates hydrates Vladislav A. Blatov: Crystal structures of inorganic oxoacid salts perceived as cation arrays: a periodic graph approach Ángel Vegas: FeLiPO4: Dissection of a crystal structure. The parts and the whole D. J. M. Bevan, R. L. Martin, Ángel Vegas: Rationalisation of the substructures derived from the three fluorite-related [Li6(MVLi)N4] polymorphs: An analysis in terms of the “Bärnighausen Trees” and of the “Extended Zintl-Klemm Concept” Ángel Vegas: Concurrent pathways in the phase transitions of alloys and oxides: Towards an Unified Vision of Inorganic Solids
Download or read book Introduction to Sol Gel Processing written by Alain C. Pierre and published by Springer Nature. This book was released on 2020-03-10 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a broad, general introduction to the processing of Sol-Gel technologies. This updated volume serves as a general handbook for researchers and students entering the field. This new edition provides updates in fields that have undergone rapid developments, such as Ceramics, Catalysis, Chromatropgraphy, biomaterials, glass science, and optics. It provides a simple, compact resource that can also be used in graduate-level materials science courses.
Download or read book Preparative Methods in Solid State Chemistry written by Paul Hagenmuller and published by Elsevier. This book was released on 2012-12-02 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparative Methods in Solid State Chemistry deals with the preparative methods used in solid state chemistry and highlights the importance of the chemist's role in preparing materials of desired quality as well as obtaining materials according to the requirements of the user such as the physicist. Topics covered range from high-pressure techniques in preparative chemistry to methods of growing single crystals of high-melting-point oxides. This book is comprised of 14 chapters and begins with an overview of possibilities for high-pressure synthesis, as well as the methods used to obtain high pressures, including transmission by gaseous or liquid fluids or in the solid state. The method of shock waves is then considered both from the point of view of thermodynamics and thermoelasticity, along with the possibility of using superpressures for evidently revolutionary applications. Subsequent chapters focus on the synthesis of single crystals of refractory oxides either at high temperatures (essentially liquid-solid transformations) or at lower temperatures in the presence of a solvent or a chemical reagent. The production of single crystals by electrolytic reduction in molten salts is also described. Numerous examples of vapor transport reactions in a temperature gradient are presented. This monograph should be of interest to chemists and students of solid state chemistry.
Download or read book Materials Chemistry written by Bradley D. Fahlman and published by Springer. This book was released on 2018-08-28 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3rd edition of this successful textbook continues to build on the strengths that were recognized by a 2008 Textbook Excellence Award from the Text and Academic Authors Association (TAA). Materials Chemistry addresses inorganic-, organic-, and nano-based materials from a structure vs. property treatment, providing a suitable breadth and depth coverage of the rapidly evolving materials field — in a concise format. The 3rd edition offers significant updates throughout, with expanded sections on sustainability, energy storage, metal-organic frameworks, solid electrolytes, solvothermal/microwave syntheses, integrated circuits, and nanotoxicity. Most appropriate for Junior/Senior undergraduate students, as well as first-year graduate students in chemistry, physics, or engineering fields, Materials Chemistry may also serve as a valuable reference to industrial researchers. Each chapter concludes with a section that describes important materials applications, and an updated list of thought-provoking questions.
Download or read book Diffusion in Condensed Matter written by Paul Heitjans and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 971 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive, handbook-style survey of diffusion in condensed matter gives detailed insight into diffusion as the process of particle transport due to stochastic movement. It is understood and presented as a phenomenon of crucial relevance for a large variety of processes and materials. In this book, all aspects of the theoretical fundamentals, experimental techniques, highlights of current developments and results for solids, liquids and interfaces are presented.
Download or read book Rechargeable Batteries written by Zhengcheng Zhang and published by Springer. This book was released on 2015-06-24 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book updates the latest advancements in new chemistries, novel materials and system integration of rechargeable batteries, including lithium-ion batteries and batteries beyond lithium-ion and addresses where the research is advancing in the near future in a brief and concise manner. The book is intended for a wide range of readers from undergraduates, postgraduates to senior scientists and engineers. In order to update the latest status of rechargeable batteries and predict near research trend, we plan to invite the world leading researchers who are presently working in the field to write each chapter of the book. The book covers not only lithium-ion batteries but also other batteries beyond lithium-ion, such as lithium-air, lithium-sulfur, sodium-ion, sodium-sulfur, magnesium-ion and liquid flow batteries.
Download or read book Solid State Batteries Materials Design and Optimization written by Christian Julien and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of solid state ionics is multidisciplinary in nature. Chemists, physicists, electrochimists, and engineers all are involved in the research and development of materials, techniques, and theoretical approaches. This science is one of the great triumphs of the second part of the 20th century. For nearly a century, development of materials for solid-state ionic technology has been restricted. During the last two decades there have been remarkable advances: more materials were discovered, modem technologies were used for characterization and optimization of ionic conduction in solids, trial and error approaches were deserted for defined predictions. During the same period fundamental theories for ion conduction in solids appeared. The large explosion of solid-state ionic material science may be considered to be due to two other influences. The first aspect is related to economy and connected with energy production, storage, and utilization. There are basic problems in industrialized countries from the economical, environmental, political, and technological points of view. The possibility of storing a large amount of utilizable energy in a comparatively small volume would make a number of non-conventional intermittent energy sources of practical convenience and cost. The second aspect is related to huge increase in international relationships between researchers and exchanges of results make considerable progress between scientists; one find many institutes joined in common search programs such as the material science networks organized by EEC in the European countries.
Download or read book Lithium Ion Batteries written by Masaki Yoshio and published by Springer Science & Business Media. This book was released on 2010-07-17 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here in a single source is an up-to-date description of the technology associated with the Li-Ion battery industry. It will be useful as a text for researchers interested in energy conversion for the direct conversion of chemical energy into electrical energy.
