The role of citrate precursors on the morphology of lanthanide oxides obtained by thermal decomposition

被引：0
作者：
Mauro Francisco Pinheiro da Silva
Flávio Machado de Souza Carvalho
Tereza da Silva Martins
Márcia Carvalho de Abreu Fantini
Paulo Celso Isolani
机构：
[1] Universidade de São Paulo,Instituto de Química
[2] Universidade Federal de São Paulo,Departamento de Ciências Exatas e da Terra
[3] Universidade de São Paulo,Instituto de Geociências
[4] Universidade de São Paulo,Departamento de Física Aplicada, Instituto de Física
来源：
Journal of Thermal Analysis and Calorimetry | 2010年 / 99卷
关键词：
Lanthanide oxides; Oxide morphologies; Polymeric precursors; SEM analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Two series of lanthanide oxides with different morphologies were synthesized through calcinations of two types of citrate polymeric precursors. These oxides were characterized by XRD patterns, SEM electronic microscopy, and N2 adsorption isotherms. SEM microscopy analysis showed that the calcination of crystalline fibrous precursors [Ln2(LH)3·2H2O] (L = citrate) originated fibrous shaped particles. On the other hand, the calcination of irregular shaped particles of precursors [LnL·xH2O] originated irregular shaped particles of oxide, pointing out a morphological template effect of precursors on the formation of the respective oxides.
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页码：385 / 390
页数：5
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