The use of Hi-Res TGA, TG-FTIR, HT-DRIFT and HT-XRD in the study of the decomposition of La2(C2O4)3•10H2O

被引：26
|
作者：
Vanhoyland, G [1 ]
Nouwen, R [1 ]
Van Bael, MK [1 ]
Yperman, J [1 ]
Mullens, J [1 ]
Van Poucke, LC [1 ]
机构：
[1] Limburgs Univ Ctr, Lab Inorgan & Phys Chem, IMO, B-3590 Diepenbeek, Belgium
来源：
THERMOCHIMICA ACTA | 2000年 / 354卷 / 1-2期
关键词：
lanthanum oxalate; thermal decomposition; HT-DRIFT; Hi-Res TGA; HT-XRD; TG-FTIR;
D O I：
10.1016/S0040-6031(00)00469-X
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Using a combination of various techniques, more intermediate products could be detected during the thermal decomposition of La-2(C2O4)(3). 10H(2)O than from conventional TGA measurements. In this way a more complete and detailed decomposition mechanism is proposed. Direct identification of the intermediate phases with MT-DRIFT revealed the presence of another oxycarbonate La2O(CO3)(2). while with Hi-Res TGA a thermally unstable intermediate La-2(CO3)(3) was detected. All this information is consistent with the data obtained from TG-FTIR spectroscopic measurements. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：145 / 151
页数：7
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