Formation of lanthanum hydroxide and oxide via precipitation

被引：18

作者：

Kim, So-Jin ^{[1
]}

Han, Won-Kyu ^{[1
]}

Kang, Sung-Goon ^{[1
]}

Han, Min-Su ^{[2
]}

Cheong, Young-Hun ^{[3
]}

机构：

[1] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea

[2] Natl Res Inst Cultural Heritage, Conservat Sci Div, Taejon 305380, South Korea

[3] Machinery & Mat Ctr, Korea Testing Lab, Seoul 152718, South Korea

来源：

NANOCOMPOSITES AND NANOPOROUS MATERIALS VIII | 2008年 / 135卷

关键词：

La(OH)(3); La2O3; precipitation; XRD; TG/DTA;

D O I：

10.4028/www.scientific.net/SSP.135.23

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Lanthanum hydroxide and oxide were prepared by the precipitation method in an aqueous medium at room temperature. The precipitate was examined using thermal analysis, X-ray diffraction and Scanning Electron Microscopy to investigate the phase evaluation and the thermal transformation by decomposition. The as-precipitated powder from the precipitation method was hexagonal La(OH)(3). The lanthanurn hydroxide was decomposed to oxide in two-steps as La(OH)(3) LaOOH + H2O and 2LaOOH --> La2O3 + H2O.

引用

页码：23 / +

页数：2

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