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Book
Structure processing properties relationships in stoichiometric and nonstoichiometric oxides
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ISBN: 1789854520 1789854512 Year: 2020 Publisher: [Place of publication not identified] : IntechOpen,

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Book
Stoichiometry and Research : The Importance of Quantity in Biomedicine
Authors: ---
ISBN: 9535143328 9535101986 Year: 2012 Publisher: IntechOpen

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The aim of this book is to provide an overview of the importance of stoichiometry in the biomedical field. It proposes a collection of selected research articles and reviews which provide up-to-date information related to stoichiometry at various levels. The first section deals with host-guest chemistry, focusing on selected calixarenes, cyclodextrins and crown ethers derivatives. In the second and third sections the book presents some issues concerning stoichiometry of metal complexes and lipids and polymers architecture. The fourth section aims to clarify the role of stoichiometry in the determination of protein interactions, while in the fifth section some selected experimental techniques applied to specific systems are introduced. The last section of the book is an attempt at showing some interesting connections between biomedicine and the environment, introducing the concept of biological stoichiometry. On this basis, the present volume would definitely be an ideal source of scientific information to researchers and scientists involved in biomedicine, biochemistry and other areas involving stoichiometry evaluation.


Multi
Crystal growth and stoichiometry of strongly correlated intermetallic cerium compounds.
Authors: --- ---
ISBN: 9535160893 9533076100 Year: 2012 Publisher: IntechOpen

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Strongly correlated electron systems are among the most active research topics in modern condensed matter physics. In strongly correlated materials the electron interaction energies dominate the electron kinetic energy which leads to unconventional properties ... Strong electronic correlations are responsible for physical phenomena on a low energy scale. Consequently, these phenomena have to be studied at low temperatures. This, in turn, requires ultimate quality of single crystals to avoid that the low temperature intrinsic properties are covered by extrinsic effects due to off-stoichiometry, impurities or other crystal imperfections ... Much attention in this paper is paid to the problem of stoichiometry. Single crystals of intermetallic compounds are grown at high temperatures, which facilitates the formation of thermal defects realized often as deviation from the stoichiometric composition. Thermal instabilities of some intermetallic phases require the use of flux techniques, i.e., growth from off-stoichiometric melts, which is another source of non-stoichiometry. Sizeable non-stoichiometries can be detected by measuring the composition by chemical and physical analytical techniques, e.g. energy dispersive X-ray spectroscopy analysis (EDX). Tiny deviations from the stoichiometry, on the other hand, can be found only from an analysis of the physical properties of single crystals. Thus physical property measurements are not only the final purpose of a crystal growth but also a valuable diagnostic tool for further improvement of their quality. Therefore, in the paper the consideration of crystal growth is accompanied by the discussion of their physical properties.


Book
Stoichiometry and Materials Science : When Numbers Matter
Authors: --- ---
ISBN: 9535143042 9535105124 Year: 2012 Publisher: IntechOpen

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The aim of this book is to provide an overview on the importance of stoichiometry in the materials science field. It presents a collection of selected research articles and reviews providing up-to-date information related to stoichiometry at various levels. Being materials science an interdisciplinary area, the book has been divided in multiple sections, each for a specific field of applications. The first two sections introduce the role of stoichiometry in nanotechnology and defect chemistry, providing examples of state-of-the-art technologies. Section three and four are focused on intermetallic compounds and metal oxides. Section five describes the importance of stoichiometry in electrochemical applications. In section six new strategies for solid phase synthesis are reported, while a cross sectional approach to the influence of stoichiometry in energy production is the topic of the last section. Though specifically addressed to readers with a background in physical science, I believe this book will be of interest to researchers working in materials science, engineering and technology.


Book
Chemical equilibrium and solutions : a programmed introduction
Author:
Year: 1967 Publisher: New York (N.Y.) : McGraw-Hill,

Chemistry of non-stoichiometric compounds
Author:
ISBN: 0191916684 0191661139 1280903651 9786610903658 0585221456 9780585221458 0198555555 9780198555551 0198555555 Year: 1993 Publisher: Oxford ; New York : Oxford University Press,

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As inorganic materials are put to more and more practical uses - mainly in electric, magnetic, and optical devices - materials scientists must have an increasingly sophisticated understanding of the chemical and physical properties of inorganic compounds. This volume - the first of its kind in 20 years - provides a unified presentation of the chemistry of non-stoichiometric compounds based on statistical thermodynamics and structural inorganic chemistry. Four modern examples of non-stoichiometric compounds - ionic conducting compounds, hydrogen absorbing alloys, magnetic materials, and electrical materials - are discussed in detail. Students and researchers in structural inorganic chemistry, crystallography, materials science, and solid state physics will find this much-needed text both practical and informative.

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