A new 'Chimie Douce' approach to the synthesis of Sr1-xLa1+xAl1-xMgxO4 with K2NiF4 structure type

被引：5

作者：

Magrez, A ^{[1
]}

Caldes, M ^{[1
]}

Joubert, O ^{[1
]}

Ganne, M ^{[1
]}

机构：

[1] Inst Mat Jean Rouxel Nantes, Chim Solide Lab, F-44322 Nantes 3, France

来源：

SOLID STATE IONICS | 2002年 / 151卷 / 1-4期

关键词：

Sr1-xLa1+xAl1-xMgxO4 solid solution; K2NiF4-type structure; ceramic method; 'Chimie Douce' route; catalysis; NPG process;

D O I：

10.1016/S0167-2738(02)00541-6

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：

Synthesis of Sr1-xLa1+xAl1-xMgxO4 solid solution is achieved by a new soft chemistry route called the nitrate polyacrylamide gel (NPG) process. A comparison between the ceramic method and the NPG route is presented. This method shows that well-crystallized single-phase product can be obtained either at 1200 degreesC for 12 h or 900 degreesC for 120 h instead of 1400 degreesC for 108 h by the ceramic method. BET measurement has shown an enhancement of the surface area up to 7.5 m(2) g(-1). The structural analysis by XRPD or electron microscopy does not reveal any deviation from the ideal K2NiF4-type structure. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：365 / 370

页数：6

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