化学
快离子导体
离子电导率
离子
离子键合
结晶学
固态
固溶体
氧化还原
电导率
电阻率和电导率
晶体结构
空间组
无机化学
X射线晶体学
物理化学
物理
有机化学
电极
量子力学
电解质
衍射
光学
作者
L. Bennouna,Saı̈d Arsalane,R. Brochu,M.R. Lee,J. Chassaing,M. Quarton
标识
DOI:10.1006/jssc.1995.1032
摘要
The complete solid solutions NaMIVVVVx (Ti, Zr)2-x(PO4)3 with M = Nb, Mo and 0 ≤ x ≤ 1 have been studied in order to state precisely their crystal chemical, electrical and magnetic characteristics. Substitutions of Ti and Zr by Nb or Mo involve local deformations without space group modification and, correlatively, increase the ionic conductivity by motion of Na1 cations. Results of magnetic and spectroscopic studies characterize M transition elements having the oxidation number IV, except for NaNbTi(PO4)3 where the two states TiIII-NbV and TiIV-NbIV coexist, in agreement with electronic conductivity values and redox potentials of the corresponding elements.
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