Palladium Thiophosphate의 합성과 용해를 통한 새로운 무기 고분자의 안정화

Alternative Title
Pilsoo Kim
Author(s)
김필수
Alternative Author(s)
Pilsoo Kim
Advisor
윤호섭
Department
일반대학원 에너지시스템학과
Publisher
The Graduate School, Ajou University
Publication Year
2014-02
Language
eng
Keyword
ThiophosphateSolublizationInorganic polymer
Alternative Abstract
The new palladium thiophosphates, APdPS4(A = K, Cs) and the new mixed-metallic phosphate, Li3-4x(V1-xMx)2(PO4)3 (M = Nb, Ta) have been prepared with the use alkali metal halide fluxes and their crystal structures have been investigated by single crystal X-ray diffraction techniques. APdPS4 phases are found to have polymorphic structures. The structures have two kind of one-dimensional chains separated from one another by alkali metal cations, A+. Although they have different arrangements, both chains share the common building blocks, square planar PdS4 and tetrahedral PS4. In this paper, polymorphic structures of the related phases are described along with the title compound. The classical charge balance of the compounds can be represented by [A+][Pd2+][P5+][S2-]4. The mixed-metallic phosphates, Li3-4x(V1-xMx)2(PO4)3 (M = Nb, Ta) crystallize in space group Pbcn of the orthorhombic system. The structure is composed of the three-dimensional framework and alkali metal cations in the channels. By adjusting the ratio of each metal ion with different oxidation numbers, the amount of the Li+ ions can be controlled and the positions of the Li ions can be varied. In addition, the relationship of the stoichiometries of each Li position and the ratio of each metal is discussed. The classical charge valence of the phases can be described as [Li+]3-4x([V3+]1-x[M5+]x)2[PO43-]3.
URI
https://dspace.ajou.ac.kr/handle/2018.oak/11790
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Graduate School of Ajou University > Department of Energy Systems > 3. Theses(Master)
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