Synthesis of lithium niobate gels using a metal alkoxide metal nitrate precursor

被引：63

作者：

Zeng, HC ^{[1
]}

Tung, SK ^{[1
]}

机构：

[1] NATL UNIV SINGAPORE,FAC ENGN,DEPT MECH & PROD ENGN,SINGAPORE 119260,SINGAPORE

来源：

CHEMISTRY OF MATERIALS | 1996年 / 8卷 / 11期

关键词：

D O I：

10.1021/cm960197n

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：

Gel material (Li:Nb = 1:1) of LiNbO3 has been prepared from a novel precursor system, niobium(V) ethoxide-lithium nitrate. The resultant biphasic gel is calcined at various elevated temperatures and studied with FTIR/XRD/DTA/SEM methods for gel composition, crystallization, and morphological development. The progressive formation (crystallization) of LiNbO3 is observed over the calcination temperature range 200-400 degrees C. It is found that grain growth and secondary recrystallization occur sequentially at higher temperatures. Retention behaviors of carbon-containing species and nitrate ions encapsulated in the gel matrix and a possible LiNbO3 formation mechanism are also addressed.

引用

页码：2667 / 2672

页数：6

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