New ε-Bi2O3 metastable polymorph

被引：147

作者：

Cornei, Nicoleta

Tancret, Nathalie

Abraham, Francis

Mentre, Olivier

机构：

[1] UST Lille, ENSC Lille, CNRS, UCCS,UMR 8181,Equipe Chim Solide, F-59652 Villeneuve Dascq, France

[2] Univ Al I Cuza, Dept Chim Inorgan, Fac Chim, Iasi 6600, Romania

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 13期

关键词：

D O I：

10.1021/ic0605221

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new metastable epsilon-Bi2O3 polymorph has been prepared by hydrothermal treatment and structurally characterized. It shows strong relationships with the room temperature R form and the metastable, form through rearrangements of [Bi2O3] columns formed by edge-sharing OBi4 tetrahedra. Its fully ordered crystal structure yields an ionic insulating character. It irreversibly transforms at 400 degrees C to the R form. The chemical analysis indicates its undoped bismuth oxide nature, then leading to the fifth characterized Bi2O3 polymorph to date.

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页码：4886 / 4888

页数：3

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