ION-EXCHANGE OF MIXED ALKALI ION, MIXED PHASE (BETA,BETA'')ALUMINAS

被引：5

作者：

BELL, MF ^{[1
]}

SAYER, M ^{[1
]}

NICHOLSON, PS ^{[1
]}

机构：

[1] MCMASTER UNIV,MET & MAT SCI,HAMILTON L8S 4L7,ONTARIO,CANADA

来源：

SOLID STATE IONICS | 1986年 / 18-9卷

关键词：

ALKALI METAL COMPOUNDS - Ion Exchange - SOLIDS - Ionic Conduction;

D O I：

10.1016/0167-2738(86)90240-7

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：

The preparation of polycrystalline hydronium beta double prime alumina by ion exchange of mixed alkali ion compositions is described. It is shown that the mixed alkali ion effect has a profound effect on the kinetics of the process. Examination of Na/K beta / beta double prime Al//2O//3 samples at various stages of H//3O** plus exchange shows that the alkali ion concentration varies in a complex manner. Examination of 'fully' exchanged samples indicates a residual potassium ion concentration which is consistent with potassium ions being locked in the beta phase as predicted by the mixed alkali percolation theory.

引用

页码：672 / 676

页数：5

共 3 条

[1] A PERCOLATION MODEL FOR THE CONDUCTIVITY OF MIXED PHASE, MIXED ION ALUMINAS [J].

BELL, MF ;

SAYER, M ;

SMITH, DS ;

NICHOLSON, PS .

SOLID STATE IONICS, 1983, 9-10 (DEC) :731-734

[2] THE MIXED ALKALI EFFECT IN (K,NA)-BETA-GALLATE FAST ION CONDUCTOR [J].

FOSTER, LM ;

ANDERSON, MP ;

CHANDRASHEKHAR, GV ;

BURNS, G ;

BRADFORD, RB .

JOURNAL OF CHEMICAL PHYSICS, 1981, 75 (05) :2412-2422

[3] POLYCRYSTALLINE H3O+-BETA''-BETA-ALUMINA-FABRICATION CHARACTERIZATION AND USE FOR STEAM ELECTROLYSIS [J].

NICHOLSON, PS ;

NAGAI, M ;

YAMASHITA, K ;

SAYER, M ;

BELL, MF .

SOLID STATE IONICS, 1985, 15 (04) :317-326

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