Transition Metal Nitride Clusters and Solid State Materials Via Alkyl Ammonolyses of Molecular Precursors PDF Download
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Author: Mark Monroe Banaszak Holl
Publisher:
ISBN:
Category :
Languages : en
Pages : 448
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Book Description
Author: Mark Monroe Banaszak Holl
Publisher:
ISBN:
Category :
Languages : en
Pages : 448
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Book Description
Author: Jean-François Halet
Publisher: Springer Nature
ISBN: 3030251241
Category : Science
Languages : en
Pages : 201
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Book Description
This volume dedicated to the memory of Marcel Sergent who was a leader in this field for many years, addresses past achievements and recent developments in this vibrant area of research. Large classes of ligated transition metal clusters are produced either exclusively or most reliably by means of high-temperature solid-state reactions. Among them, the Chevrel-Sergent phases and related materials have generated enormous interest since their discovery in 1971. Today, these materials and their numerous derivatives still constitute a vivid area of research finding some applications not only in superconductivity, but also in catalysis, optics or thermoelectricity to mention a few.
Author: S.T. Oyama
Publisher: Springer Science & Business Media
ISBN: 9780751403657
Category : Science
Languages : en
Pages : 590
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Book Description
This book arose from a symposium titled 'Transition Metal Carbides and Nitrides: Preparation, Properties, and Reactivity' organized by Jae Sung Lee, Masatoshi Nagai and myself. The symposium was part of the 1995 Congress of Pacific Rim Chemical Societies, held in Honolulu, Hawaii between December 17-22, 1995. The meeting was the first major conference to exclusively address the theme of metal carbides and nitrides, and brought together many of the major researchers in the field. Over 50 scientists and engineers reported their latest findings in five sessions of presentations and discussions. The book closely follows the topics covered in the conference: Theory of bonding Structure and composition Catalytic properties Physical properties New methods of preparation Spectroscopy and microscopy The book is unique in its coverage. It provides a general introduction to the properties and nature of the materials, but also covers their latest applications in a wide variety of fields. It should thus be of interest to both experts and nonexperts in the fields of material science, solid-state chemistry, physics, ceramics engineering, and catalysis. The first chapter gives an overview, and many of the chapters provide summaries of advanced topics. All contributions were peer-reviewed.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 84
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Book Description
Transition-metal nitride containing molecules are of interest for their ability to act as single molecule magnets (SMMs), which are poised to revolutionize data storage and molecular electronics. SMMs are isolated molecules that exhibit superparamagnetic susceptibility below a magnetic blocking temperature. The ability of these molecules to retain magnetization in the absence of a magnetic field depends on a potential energy barrier for reversal of their aligned electron spins, denoted by the equation U = DS2, where D is a measure of the axial zero-field splitting in the molecule and S is the spin ground state. In order for the SMM to be effective it is necessary to have a high negative D and a high S value. Despite their potential to act as SMMs, examples of molecules containing the nitride anion bound to paramagnetic, transition-metal ions are scarce in literature. This is likely due to the dearth of facile synthetic methods to attain them. In pursuing convenient precursors to these molecules, three complexes, [Cl3Mn·N(SnMe3)3]1−, [Cl3Co·N(SnMe3)3]1−, and [Br3Co·N(SnMe3)3]1−, have been isolated. These complexes have the potential to behave as SMMs because of the anisotropy in the coordination of the central metal ions. Additionally, these complexes are promising thermolytic precursors to high-nuclearity nitride containing molecules and materials. In polynuclear molecules, a high spin ground state can be achieved by long-range electron exchange coupling between the metals of the molecule through the coordinated ligands. A new salt of the previously studied trinuclear transition-metal anion [Co3(THF)2Cl8]2− has been synthesized with a simple alkyl ammonium cation. The magnetic properties of this complex were not formerly probed, but interesting behavior likely due to the nature of the linear configuration of the cobalt ions has been observed. Furthermore, two inorganic polymer complexes with formulas [Co5Cl10(THF)6][subscript n] and [Mn9Cl19(THF)14][subscript n] have been synthesized. The magnetic properties of the cobalt chain have been investigated because single-chain magnets (SCMs), just as SMMs, retain the ability to exhibit high magnetization relaxation barriers
Author: American Chemical Society
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 890
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Book Description
Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2726
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Book Description
Author: Yury G. Gogotsi
Publisher: Springer Science & Business Media
ISBN: 9401145628
Category : Technology & Engineering
Languages : en
Pages : 371
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Book Description
A survey of current research on a wide range of carbide, nitride and boride materials, covering the general issues relevant to the development and characterisation of a variety of advanced materials. Topics include structure and electronic properties, modeling, processing, high-temperature chemistry, oxidation and corrosion, mechanical behaviour, manufacturing and applications. The volume complements more specialised books on specific materials as well as more general texts on ceramics or hard materials, presenting a survey of materials research as a key to technological development. After decades of research, the materials are being used in electronics, wear resistant, refractory and other applications, but numerous new applications are possible. Roughly equal numbers of papers cover theoretical and experimental research in the general field of materials science of refractory materials. Audience: Researchers and graduate students in materials science and engineering.
Author: Alain C. Pierre
Publisher: Springer Nature
ISBN: 3030381447
Category : Technology & Engineering
Languages : en
Pages : 716
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Book Description
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.
Author: Susannah L. Scott
Publisher: Springer Science & Business Media
ISBN: 0387306412
Category : Science
Languages : en
Pages : 341
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Book Description
With the recent advent of nanotechnology, research and development in the area of nanostructured materials has gained unprecedented prominence. Novel materials with potentially exciting new applications are being discovered at a much higher rate than ever before. Innovative tools to fabricate, manipulate, characterize and evaluate such materials are being developed and expanded. To keep pace with this extremely rapid growth, it is necessary to take a breath from time to time, to critically assess the current knowledge and provide thoughts for future developments. This book represents one of these moments, as a number of prominent scientists in nanostructured materials join forces to provide insightful reviews of their areas of expertise, thus offering an overall picture of the state-- the art of the field. Nanostructured materials designate an increasing number of materials with designed shapes, surfaces, structures, pore systems, etc. Nanostructured materials with modified surfaces include those whose surfaces have been altered via such techniques as grafting and tethering of organic or organometallic species, or through various deposition procedures including electro, electroless and vapor deposition, or simple adsorption. These materials find important applications in catalysis, separation and environmental remediation. Materials with patterned surfaces, which are essential for the optoelectronics industry, constitute another important class of surface-modified nanostructured materials. Other materials are considered nanostructured because of their composition and internal organization.
Author: Someshwar Pola
Publisher: BoD – Books on Demand
ISBN: 1789856655
Category : Science
Languages : en
Pages : 230
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Book Description
Investigating in the area of perovskite materials and the fabrication of devices for properties in optoelectronics, we have presented a brief outline of perovskite materials. The authors present a fairly comprehensive arrangement of this very active area of research, with its past changes and present position and outlooks. Discussions are presented regarding photocatalysis, fabrication of solar cell devices and their stability, lead-free materials, as well as thermoelectric and piezoelectric applications. In view of the present status of perovskite materials, I am assured that each chapter of the book will be of boundless encouragement for researchers, scientists, and academicians working in this field.
