Synthesis, Structure, Characterization, and Second-harmonic Generating Properties of New Mixed Metal Oxides
Author: Kang Min Ok
Publisher:
Published: 2003
Total Pages: 354
ISBN-13:
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Author: Kang Min Ok
Publisher:
Published: 2003
Total Pages: 354
ISBN-13:
DOWNLOAD EBOOKAuthor: Sau Doan Nguyen
Publisher:
Published: 2012
Total Pages:
ISBN-13:
DOWNLOAD EBOOKFunctional polar oxide materials occupy a very crucial position in modern technology. The polar oxide materials exhibit many technologically important properties like second-harmonic generation, piezoelectricity, pyroelectricity, and possibly ferroelectricity caused by their polar crystal structure. Though the structure-property relationship in polar oxide materials is well studied, the understanding of how the structural building units are joined to form a new polar crystal structure has been less sufficient. A synthetic approach using cations susceptible to second-order Jahn Teller (SOJT) distortion like octahedrally coordinated d0 cations (Ti4+, V5+, Mo6+) and lone-pair cations (Sn2+, Sb3+, Te4+) is successful in preparing new polar oxide materials. We were successful in preparing several new polar oxide materials, Zn2(MoO4)(AO3) (A = Se4+, Te4+) (P21), BiO(IO3) (Pca21), Li6(Mo2O5)3(SeO3)6 (Pmn21), Na2(WO3)3(SeO3)2H2O (P31c), and Na6(W6O19)(SeO3)2 (C2) and other centrosymmetric materials, Li2(MO4)(TeO3)2 (M = Mo6+, W6+) (P21/n). In this dissertation, we report the syntheses, crystal structures, physical properties, functional properties, and understanding of the structure-property relationship of the reported oxide materials.
Author: Hana Lee
Publisher:
Published: 2013
Total Pages:
ISBN-13:
DOWNLOAD EBOOKNon-centrosymmetric (NCS) oxide materials are of significant interest because of their functional properties, for example, second-harmonic generating (SHG), piezoelectricity, ferroelectricity, and pyroelectricity. A number of design strategies have been discussed for creating NCS oxide materials. We have focused on using cations susceptible to second-order Jahn-Teller (SOJT) distortion. The distortion can occur in two different types of cations, d0 transition metals (Ti4+, V5+, Nb5+, Mo6+, etc.) and cations with stereoactive lone-pair (Se4+, Te4+, I5+, Tl+, Pb2+, etc.), and results in asymmetric coordination environments. In this dissertation, we report on the syntheses, crystal structures, characterization, functional properties, and their crystal structure-physical property relationships.
Author: Jean-Pierre Jolivet
Publisher: John Wiley & Sons
Published: 2000-10-19
Total Pages: 352
ISBN-13:
DOWNLOAD EBOOKThe precipitation of metal oxides from aqueous solutions creates nanoparticles with interesting solid state properties, thus building a bridge between solution chemistry and solid state chemistry. This book is the first monograph to deal with the formation of metal oxides from aqueous solutions with emphasis on the formation and physical chemistry of nanoparticles. Metal Oxide Chemistry and Synthesis: From Solution to Solid State * Provides a comprehensive introduction to the synthesis of finely divided materials * Presents the chemistry, physics and applications of these materials * Builds a bridge between classical solution chemistry and new developments in solid state chemistry * Introduces an important new area in inorganic chemistry Part I examines the mechanism of condensation of aqueous cations leading to polynuclear species or lattices, and rationalizes the behaviour of cations in precipitation phenomena by identifying pathways from soluble species to solids. The cation complex is also analysed in relation to the synthesis of some technologically interesting polymetallic oxides, e.g. ferroelectric, ferrimagnetic and supraconductor materials. Part II is devoted to the surface chemistry of oxide particles. The basic concepts relating to the reactivity of the oxide-solution interface are introduced and applied to various adsorption phenomena, such as aggregation, stability of particle size against ripening, etc. These properties are exploited for the synthesis of nanomaterials for a broad range of applictions such as ceramic powders, catalysts and nanocomposites. This will also be of interest to those wishing to understand geochemical and some biological processes. As well as being invaluable to researchers and postgraduate students of inorganic chemistry, this book will also be appreciated by solid-state chemists, materials scientists and colloid chemists with an interest in metal oxides.
Author: Pierre Villars
Publisher: Walter de Gruyter
Published: 2012-12-21
Total Pages: 1827
ISBN-13: 3110276658
DOWNLOAD EBOOKBy 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.
Author: Ralph Charles Layland
Publisher:
Published: 1996
Total Pages: 546
ISBN-13:
DOWNLOAD EBOOKAuthor: José A. Rodriguez
Publisher: John Wiley & Sons
Published: 2007-03-30
Total Pages: 640
ISBN-13: 0470108967
DOWNLOAD EBOOKCurrent oxide nanomaterials knowledge to draw from and build on Synthesis, Properties, and Applications of Oxide Nanomaterials summarizes the existing knowledge in oxide-based materials research. It gives researchers one comprehensive resource that consolidates general theoretical knowledge alongside practical applications. Organized by topic for easy access, this reference: * Covers the fundamental science, synthesis, characterization, physicochemical properties, and applications of oxide nanomaterials * Explains the fundamental aspects (quantum-mechanical and thermodynamic) that determine the behavior and growth mode of nanostructured oxides * Examines synthetic procedures using top-down and bottom-up fabrication technologies involving liquid-solid or gas-solid transformations * Discusses the sophisticated experimental techniques and state-of-the-art theory used to characterize the structural and electronic properties of nanostructured oxides * Describes applications such as sorbents, sensors, ceramic materials, electrochemical and photochemical devices, and catalysts for reducing environmental pollution, transforming hydrocarbons, and producing hydrogen With its combination of theory and real-world applications plus extensive bibliographic references, Synthesis, Properties, and Applications of Oxide Nanomaterials consolidates a wealth of current, complex information in one volume for practicing chemists, physicists, and materials scientists, and for engineers and researchers in government, industry, and academia. It's also an outstanding reference for graduate students in chemistry, chemical engineering, physics, and materials science.
Author: Jeongho Yeon
Publisher:
Published: 2011
Total Pages: 346
ISBN-13:
DOWNLOAD EBOOKAuthor: Julia Louise Payne
Publisher:
Published: 2011
Total Pages:
ISBN-13:
DOWNLOAD EBOOKIntroduction and Literature Review: Different families of oxide ion conductors and their applications are discussed. Experimental and Characterisation Methods: The synthetic methods and characterisation techniques used throughout this thesis are described. Synthesis, Structure and Transport Properties of Bi2Zr2-xTixO7 Phases: The characterisation of Bi2Zr2-xTixO7 compounds is reported for the first time. An increase in conductivity of 3 orders of magnitude is found for the Zr- rich end member. Bi2Ti2O7, which adopts centrosymmetric space group Fd-3m has been found to be SHG active. Structure Solution of beta-Bi2Sn2O7 and Properties of Bi2Sn2O7 Based Materials: Analysis of synchrotron powder X-ray and powder neutron diffraction data has shown for the first time that beta-Bi2Sn2O7 is not cubic and has a monoclinic structure, most likely in space group Pc. The effect of doping in both Bi2Sn2O7 and Bi2ScNbO7 on their respective conductivities has been explored. Synthesis and Characterisation of Nd2Zr2O7: A range of average and local structural techniques have been used to demonstrate that Nd2Zr2O7 prepared by wet-chemistry routes adopts the fluorite-type structure, as opposed to the pyrochlore structure adopted by samples synthesised by solid state methods. Synthesis, Characterisation, Simulations and Properties of Bi6WO12 and Related Oxide Ion Conductors: We report for the first time details of DFT molecular dynamics simulations to probe the oxide ion conduction pathways in the oxide ion conductor Bi6WO12. Appropriate doping has led to enhancements in oxide ion conductivity. Simulations, Characterisation and Properties of New Bismuth Vanadate Oxide Ion Conductors: DFT molecular dynamics simulations carried out on Bi19V2O33.5 have revealed the O2- migration pathways in this material with exceptional ionic conductivity. The synthesis and characterisation of new doped bismuth vanadates with formula Bi19-xMxV2O33.5-x/2 (M = Ca2+ or Sr2+), also excellent oxide ion conductors, is reported. Overall Conclusions and Suggestions for Future Work: This briefly reviews the conclusions and makes suggestions for further work.
Author: Speranta Tanasescu
Publisher: BoD – Books on Demand
Published: 2020-11-04
Total Pages: 104
ISBN-13: 1789854512
DOWNLOAD EBOOKThe interrelation among composition, microstructure, and properties of stoichiometric and nonstoichiometric compounds is a major field of research for both scientific and technological reasons. As such, this book focuses on metal oxides, which present a large diversity of electrical, magnetic, optical, optoelectronic, thermal, electrochemical, and catalytic properties, making them suitable for a wide range of applications. By bringing together scientific contributions with special emphasis on the interrelations between materials chemistry, processing, microstructures, and properties of stoichiometric and nonstoichiometric metal oxides, this book highlights the importance of tightly integrating high-throughput experiments (including both synthesis and characterization) and efficient and robust theory for the design of advanced materials.