Preparation and characterization of sodium fast ion conductors Na1+2x+yAlxYbyZr2-x-ySixP3-xO12 system

被引：10

作者：

Wang, WJ

Zhang, YR

机构：

[1] Department of Chemistry, Fuzhou University, Fuzhou

来源：

SOLID STATE IONICS | 1996年 / 86-8卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

ion conductors; Kaolinite; Nasicon; sodium solid electrolytes;

D O I：

10.1016/0167-2738(96)00110-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Natural layered aluminosilicate Kaolinite Al-4[Si4O10](OH)(8) has been used as a starting material for preparing a new system of sodium fast ion conductors Na1+2x+yAlxYbyZr2-x-ySixP3-xO12 by high temperature (800-1000 degrees C) solid state reaction for about 20 h. A Nasicon phase with space group C-2/c exist in a rather wide composition region, e.g., the compositions with y=1, x less than or equal to 1.0 are typical Nasicon phase, but a glass phase plus Nasicon phase were observed when x greater than or equal to 1.0. The results of electrical measurements indicated that the best conductivity in the Na1+2x+yAlxYbyZr2-x-ySixP3-xO12 system is 5.89 x 10(-2)S/cm at 400 degrees C for the initial composition y=1, x=0.1, its activation energy is 36.4 KJ/mole in the temperature range 200-400 degrees C.

引用

页码：281 / 284

页数：4

共 9 条

[1] PHASE-TRANSFORMATION IN NA1+XSIXZR2P3-XO12 COMPOUNDS [J].

BOILOT, JP ;

SALANIE, JP ;

DESPLANCHES, G ;

LEPOTIER, D .

MATERIALS RESEARCH BULLETIN, 1979, 14 (11) :1469-1477

[2]

DAI A, 1978, PERIODIC TABLE

[3]

GORDON RS, 1981, SOLID STATE IONICS, V3, P215

[4]

Guo Chang-LIn, 1981, Acta Physica Sinica, V30, P124

[5] CRYSTAL-STRUCTURES AND CRYSTAL-CHEMISTRY IN SYSTEM NA1+XZR2SIXP3-XO12 [J].

HONG, HYP .

MATERIALS RESEARCH BULLETIN, 1976, 11 (02) :173-182

[6]

Wang W., 1992, SOLID STATE IONICS M, P369

[7] STUDY OF NA1+X+YZR2-YNDYSIXP3-XO12 FAST ION CONDUCTORS [J].

WANG, WJ ;

WANG, SB ;

RAO, L ;

LU, ZL ;

YI, XZ .

SOLID STATE IONICS, 1988, 28 :424-426

[8]

ZHAOLU PAN, 1988, CRYSTALLOGRAPHY MINE, P173

[9]

[No title captured]

← 1 →