Preparation of nanosized spinel stannate, Zn2SnO4, from a hydroxide precursor

被引：46

作者：

Stambolova, I

Toneva, A

Blaskov, V

Radev, D

Tsvetanova, Y

Vassilev, S

Peshev, P

机构：

[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

[2] Bulgarian Acad Sci, Cent Lab Mineral & Crystallog, BU-1113 Sofia, Bulgaria

[3] Bulgarian Acad Sci, Inst Electrochem & Energy Syst, BU-1113 Sofia, Bulgaria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 391卷 / 1-2期

关键词：

electrode materials; nanostructures; precipitation; X-ray diffraction; thermal analysis;

D O I：

10.1016/j.jallcom.2004.08.053

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new convenient method for the synthesis of spinel zinc orthostannate, Zn2SnO4, has been developed. The synthesis proceeds during thermal treatment of a hydroxide precursor obtained by coprecipitation of Zn(NO3)(2) and SnCl2 with Na2CO3. It is shown that a product with a stoichiometric composition is obtained at a temperature much lower than that of usual solid state synthesis from oxides. This temperature is 750 degrees C when the precursor is fired without a preliminary treatment and 650 degrees C when mechanochemical activation precedes the heating. Under these conditions, deviation of the Zn2SnO4 Composition from stoichiometry due to ZnO evaporation is avoided and the product has nanosized grains with an average size of the order of 20 nm. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：L1 / L4

页数：4

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