Two-step solid-state synthesis of tin oxide and its gas-sensing property

被引：54

作者：

Li, F

Chen, LY

Chen, ZQ

Xu, JQ

Zhu, JM

Xin, XQ ^{[1
]}

机构：

[1] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China

[2] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

[3] Zhengzhou Light Ind Inst, Dept Chem Engn, Zhengzhou 450002, Peoples R China

[4] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[5] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2002年 / 73卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

solid-state reactions; synthesis tin oxide; gas sensing properties; nanocrystals;

D O I：

10.1016/S0254-0584(01)00357-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tin oxide (SnO2) nanocrystals have been synthesized by two-step solid-state reactions. In the first step, the SnO fine particles are synthesized from the reaction of SnCl(2)(.)2H(2)0 precursor with KOH in the size range of ca. 500 nm. Then the fine particles are oxidized into nano-sized SnO2 crystals with O-2. It is an environment friendly, convenient, inexpensive and efficient preparation of SnO, nanocrystals with grain size of ca. 20nm. The prepared SnO2-based gas sensors have an excellent ability of discriminating EtOH from gasoline. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：335 / 338

页数：4

共 15 条

[1] SELECTIVITY STUDIES ON TIN OXIDE-BASED SEMICONDUCTOR GAS SENSORS [J].