首页|Soft template synthesis of high selectivity mesoporous SnO2 gas sensors

Soft template synthesis of high selectivity mesoporous SnO2 gas sensors

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Mesoporous SnO2 was synthesized using cetyltrimethyl ammonium bromide(CTAB)as supermolecule-template by hydrothermal method followed by calcining under different temperature in air.X-ray diffraction analysis(XRD)and transmission electron microscopy(TEM)techniques were used to characterize the structure of mesoporous SnO2.The results indicated that the gas sensors prepared by using mesoporous SnO2 after calcination at 400℃ showed quick response and recovery to ethanol at 200℃.It was also found that the mesostructure SnO2 with small particle size had higher sensitivity and selectivity to C2H5OH than the SnO2 nanoparticles the particle size of which is 20 nm synthesized by sol-gel method.

tin dioxidemesoporous nanostructurecetyltrimethyl ammonium bromide(CTAB)gas sensing properties

LIU Gang、TAN Zhi-jin、WANG Cong、WU Ruo-fei、ZHANG Hai-jiao

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School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,P.R.China

Shanghai Leading Academic Discipline ProjectNatural Science Foundation of Shanghai MunicipalityResearch Foundation of State Key Laboratory of Chemical Engineering(ECUST)Shanghai Key Laboratory of Green Chemistry and Chemical Processes(ECNU)

S3010908ZR1407800

2010

10.1007/s11741-010-0647-3

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2010.14(4)
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