A THERMAL-ANALYSIS EVALUATION OF THE LOW-TEMPERATURE SYNTHESIS OF BABIO3

被引：8

作者：

CHUAH, GK ^{[1
]}

JAENICKE, S ^{[1
]}

CHAN, KS ^{[1
]}

KHOR, ST ^{[1
]}

HILL, JO ^{[1
]}

机构：

[1] NATL UNIV SINGAPORE,DEPT CHEM,KENT RIDGE,SINGAPORE 0511,SINGAPORE

来源：

JOURNAL OF THERMAL ANALYSIS | 1993年 / 40卷 / 03期

关键词：

BABIO3; EGA; IR; LOW TEMPERATURE SYNTHESIS; MENTAL-ORGANIC PRECURSORS; TG; XRD;

D O I：

10.1007/BF02546878

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Thermal decomposition of metal-organic precursors for the mixed oxide BaBiO3 was studied using TG and EGA. Precursors produced by polyesterification of bifunctional acids with ethylene glycol (Pechini process) decomposed about 100-degrees-C higher than those without the diol. BaCO3 was identified by IR and XRD as a reaction intermediate. EGA proved that the amount of BaCO3 was below 10% of the total barium, and that the barium exists mainly as a nitro-compound up to 650-degrees-C. Phase-pure BaBiO3 with a moderately high surface area (1.4 m2/g) could be synthesised from a citrate precursor by the Pechini process at around 850-degrees-C.

引用

页码：1157 / 1164

页数：8

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