Preparation of porous flower-shaped SnO2 nanostructures and their gas-sensing property

被引：137

作者：

Huang, Jiarui ^{[1
,2
]}

Yu, Kun ^{[1
]}

Gu, Cuiping ^{[1
]}

Zhai, Muheng ^{[1
]}

Wu, Youjie ^{[1
]}

Yang, Min ^{[1
]}

Liu, Jinhuai ^{[2
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Key Lab Funct Mol Solids, Wuhu 241000, Peoples R China

[2] Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 147卷 / 02期

关键词：

Tin oxide; Flower-like; Nanostructures; Porous; Gas sensor; FACILE SYNTHESIS; OXIDE NANOTUBES; INDIUM SULFIDE; GRAIN-SIZE; SENSITIVITY; FABRICATION; GROWTH; CONVERSION; TEMPLATES; SPHERES;

D O I：

10.1016/j.snb.2010.03.085

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Porous flower-like tin oxide (SnO2) nanostructure is prepared by annealing of the flower-like tin sulfur (SnS2) nanostructures. The morphology and crystal structure of the flower-like SnO2 nanostructures are characterized by field emission scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The average SnO2 crystallite size is about 6.1 nm. The as-prepared porous flower-like SnO2 nanostructures exhibit a good response and reversibility to some organic gases, such as ethanol and n-butanol. The sensor responses to 100 ppm ethanol and n-butanol are 42.6 and 77.2, respectively, at a working temperature of 240 degrees C. In addition, the sensors exhibit a good response to methanol, 2-propanol. and acetone. The relationship between the gas-sensing properties and the microstructure of the as-prepared flower-like SnO2 nanostructures is also investigated. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：467 / 474

页数：8

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