SYNTHESIS AND IONIC-CONDUCTIVITY OF NOVEL LAYERED PEROVSKITE COMPOUNDS, AGLATIO4 AND AGEUTIO4

被引：35

作者：

TODA, K ^{[1
]}

KURITA, S ^{[1
]}

SATO, M ^{[1
]}

机构：

[1] NIIGATA UNIV,FAC ENGN,DEPT CHEM & CHEM ENGN,NIIGATA 95021,JAPAN

来源：

SOLID STATE IONICS | 1995年 / 81卷 / 3-4期

关键词：

IONIC CONDUCTIVITY - SILVER; ION EXCHANGE; SILVER TITANIUM OXIDE;

D O I：

10.1016/0167-2738(95)00184-8

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：

Novel compounds, AgLaTiO4 and AgEuTiO4, have been synthesized by an ion-exchange reaction from parent compounds, NaLaTiO4 and NaEuTiO4. The crystal structure of the silver ion-exchanged compounds was determined by the Rietveld analysis for powder XRD patterns. The silver ion-exchange compounds retain the structural characteristics of the parent phases. The interlayer silver ions in the silver ion-exchanged compounds have a rock-salt type coordination. These compounds, which are probably metastable, could only be obtained by the ion-exchange reaction. The ionic conductivities attributed to the interlayer silver ions were observed at high temperatures. The ionic conductivity of AgLaTiO4 was much higher than that of NaLaTiO4. Such a high ionic conductivity is probably due to the higher polarizability of silver ion.

引用

页码：267 / 271

页数：5

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