Selective detection of acetone and gasoline by temperature modulation in zinc oxide nanosheets sensors

被引：46
作者：
Fan, Huiqing [1 ]
Jia, Xiaohua [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
SOLID STATE IONICS | 2011年 / 192卷 / 01期
关键词：
Hydrothermal synthesis; ZnO nanosheets; Gas sensor; Selective detection; GAS-SENSING PROPERTIES; ZNO NANORODS; MICROSPHERES; FABRICATION; MECHANISM; VAPOR; NIO;
D O I：
10.1016/j.ssi.2010.05.058
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：
Two-dimensional ZnO nanosheets with dimensions of several microns in length and tens of nanometers in thickness were synthesized via a simple mixed hydrothermal synthesis in the presence of cetyltrimethyl ammonium bromide (CTAB) and 1, 2-propanediol. The ZnO nanosheets are characterized by using X-ray powder diffraction, transmission electron microscopy, and field emission scanning electron microscopy. The formation mechanism and effect of CTAB on the morphology of ZnO nanosheets have also been discussed. Furthermore, gas sensing properties were measured between 180 and 360 degrees C by a static test system, which confirm that the as-synthesized ZnO nanosheets are of good selectivity and response to actone at low temperature and to gasoline at high temperature, and could be an ideal temperature selecting gas sensor for the detection of both acetone and gasoline. (C) 2010 Elsevier BM. All rights reserved.
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页码：688 / 692
页数：5
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