Preparation of the cubic-type La2O3 phase by thermal decomposition of LaI3

被引：46

作者：

Imanaka, N ^{[1
]}

Masui, T ^{[1
]}

Kato, Y ^{[1
]}

机构：

[1] Osaka Univ, Handai Frontier Res Ctr, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2005年 / 178卷 / 01期

关键词：

La2O3; cubic rare earths oxide; FT-IR; chemical stability;

D O I：

10.1016/j.jssc.2004.11.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cubic lanthanum oxide was prepared by the oxidation of lanthanum iodide at 700degreesC in air atmosphere. The oxide was characterized by X-ray fluorescence analysis, X-ray diffraction, and Fourier-transformed infrared spectroscopy. The cubic La2O3 is most likely a single lanthanum oxide phase containing periodate hydrate and hydroxycarbonate species. The cubic lanthanum oxide is found to be chemically stable even if they are dispersed in water because of the presence of hydroxycarbonate and periodate hydrate species which inhibit the bulk hydroxylation. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：395 / 398

页数：4

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