期刊
SOLID STATE IONICS
卷 175, 期 1-4, 页码 445-449出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2003.12.037
关键词
lithium zirconium phosphate; NASICON; solid state NMR; ion conductivity
A series of NASICON type compounds A(1-x)Zr(2-x)Nb(x)(PO4)(3) (A=H, Li; x=0, 0.02, 0.1, 0.2) have been studied by H-1, Li-7, P-31 NMR and impedance spectroscopy. Niobium substitution leads to cation mobility enhancement and favors the triclinic-rhombohedral phase transition. The phase transition and a local lithium motion are highly increased by vacancy formation, while cation conductivity is increased by interstitials formation in LiZr2(PO4)(3) structure. (C) 2004 Elsevier B.V. All rights reserved.
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