Synthesis of Nd-doped barium cerate proton conductor from oxalate coprecipitate precursor

被引：15

作者：

Chen, FL ^{[1
]}

Sorensen, OT ^{[1
]}

Meng, GY ^{[1
]}

Peng, DK ^{[1
]}

机构：

[1] RISO NATL LAB,DEPT MAT,DK-4000 ROSKILDE,DENMARK

来源：

JOURNAL OF THERMAL ANALYSIS | 1997年 / 49卷 / 03期

关键词：

barium cerate; oxalate coprecipitation; proton conductor; synthesis;

D O I：

10.1007/BF01983682

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The decomposition process of barium, cerium and neodymium oxalates in air was investigated by DTA-TG. Decomposition of an oxalate coprecipitate precursor and formation of barium cerate were examined in air, N-2 and CO2 atmospheres, respectively, by employing DTA-TG and XRD. The results showed that, in air, cerium oxalate could easily be decomposed to CeO2 below 350 degrees C and Nd2O3 could be obtained at 670 degrees C, while a high temperature of > 1400 degrees C was needed to obtain BaO. Although some amount of BaCeO3 was formed at 500 degrees C in air, at 650 degrees C in N-2 and at 800 degrees C in CO2, single perovskite phase of BaCeO3 could only be obtained at a much higher temperature.

引用

页码：1255 / 1261

页数：7

共 13 条

[1] TRANSPORT STUDY OF THE SOLID-ELECTROLYTE BACE0.9GD0.1O2.95 AT HIGH-TEMPERATURES [J].