Preparation of porous tin dioxide powder by ultrasonic spray pyrolysis and their application to sensor materials
Preparation of porous tin dioxide powder by ultrasonic spray pyrolysis and their application to sensor materials
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DOI：
10.1016/j.snb.2008.02.002
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发表时间：
2008-07-28
影响因子：
8.4
通讯作者：
Egashira, Makoto
中科院分区：
文献类型：
--
作者：
Hieda, Koji;Hyodo, Takeo;Egashira, Makoto
将含有聚甲基丙烯酸甲酯(PMMA)微球的SnCl2或SnCl4前驱体雾化溶液进行热解，制得了多孔SnO2粉末。多孔SnO2粉末中存在的大孔直径(直径约为400-800 nm)约为150-200 nm。此外，由SnCl2制备的多孔SnO2粉末的壁厚可能比由SnCl4制备的多孔SnO2粉末的壁厚要薄。在所测试的传感器中，由SnCl2水溶液在1100℃下热解制备的粉末制成的SnO2传感器对空气中1000ppm的H-2的响应最高。(C)2008爱思唯尔B.V.保留所有权利。
Porous SnO2 powders have been prepared by pyrolysis of atomized aqueous SnCl2 or SnCl4 precursor solutions containing polymethylmethacrylate (PMMA) microspheres. The diameter of macropores existing in the porous SnO2 powders (about 400-800 nm in diameter) was about 150-200 run. In addition, the wall thickness of the porous SnO2 powder prepared from SnCl2 was presumed to be thinner than that prepared from SnCl4. A SnO2 sensor fabricated from the powder prepared by pyrolysis of the aqueous SnCl2 solution at 1100 degrees C showed the highest response to 1000 ppm H-2 in air among the sensors tested. (C) 2008 Elsevier B.V. All rights reserved.