引用本文:
胡瑞生, 段毅文, 沈岳年, 贾美林. 三种络合剂对LaFeO3晶体形成的影响[J]. 物理化学学报,
1999, 15(06): 541-544.
doi:
10.3866/PKU.WHXB19990611
Citation: Hu Rui-Sheng, Duan Yi-Wen, Shen Yue-Nian, Jia Mei-Lin. Effects of Adding Various Complexing Agents on the Formation of Single Phase LaFeO3[J]. Acta Physico-Chimica Sinica, 1999, 15(06): 541-544. doi: 10.3866/PKU.WHXB19990611
Citation: Hu Rui-Sheng, Duan Yi-Wen, Shen Yue-Nian, Jia Mei-Lin. Effects of Adding Various Complexing Agents on the Formation of Single Phase LaFeO3[J]. Acta Physico-Chimica Sinica, 1999, 15(06): 541-544. doi: 10.3866/PKU.WHXB19990611
English
Effects of Adding Various Complexing Agents on the Formation of Single Phase LaFeO3
Abstract:
In this paper, polycrystalline powders of LaFeO3 have been prepared by the decomposation of mixed nitrates with and without various complexing agents respectively. The Phase changes at different temperatures have been investigated by XRD, TG, DTA and IR. The effects of adding complexing agent, citric acid, HAC and EDTA, on the formation of single phase LaFeO3 have been discussed. The formation of single phase perovskite-type LaFeO3 are favoured by adding various complexing agents. The favourable order for the formations of LaFeO3 is that citric acid＞HAC≈EDTA.
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Key words:
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Perovskitd-type oxides
- / Rare earths
- / Complexing agent
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