SO2 gas sensors based on WO3 nanostructures with different morphologies

被引：35

作者：

Boudiba, Abdelhamid ^{[1
]}

Zhang, Chao ^{[1
]}

Bittencourt, Carla

Umek, Polona ^{[3
]}

Olivier, Marie-Georges ^{[1
,2
]}

Snyders, Rony ^{[2
]}

Debliquy, Marc ^{[1
]}

机构：

[1] Univ Mons, Fac Polytech Mons, Serv Sci Mat, B-7000 Mons, Belgium

[2] CMateria Nova Res Ctr, Mons, Belgium

[3] DJozef Stefan Inst, Ljubljana, Slovenia

来源：

26TH EUROPEAN CONFERENCE ON SOLID-STATE TRANSDUCERS, EUROSENSOR 2012 | 2012年 / 47卷

关键词：

WO3; Hydrothermal; SO2 gas sensors;

D O I：

10.1016/j.proeng.2012.09.326

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Sulfur dioxide (SO2) gas sensors based on WO3 thick films were studied. WO3 was synthesized following different procedures, yielding different morphologies. The obtained nanostructures were characterized by means of HRTEM and X-ray diffraction (XRD). The WO3 inks were prepared by dispersing the different WO3 nanopowders into terpineol with dispersion additives. The sensors were prepared by screen-printing of WO3 inks on alumina substrates fitted with gold electrodes and a platinum heater. The sensors were then annealed in air at 400 degrees C. The results of the exposure to 1-10 ppm SO2 at different operating temperatures (200-300 degrees C) at 50% relative humidity are shown. The sensors exhibit good responses to 1-10 ppm SO2 at 200-300 degrees C which is strongly dependent on the morphology of the WO3. The response of the sensors, response and recovery times are reported and discussed. (C) 2012 Elsevier Ltd....Selection and/or peer-review under responsibility of the Symposium Cracoviense Sp. z.o.o.

引用

页码：1033 / 1036

页数：4

共 3 条

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Boudiba, Abdelhamid ;

Zhang, Chao ;

Snyders, Rony ;

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Debliquy, Marc .

EUROSENSORS XXV, 2011, 25

[2] Solid-state potentiometric SO2 sensor combining NASICON with V2O5-doped TiO2 electrode [J].

Liang, Xishuang ;

Zhong, Tiegang ;

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Guan, Hesong .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 134 (01) :25-30

[3] Highly sensitive hydrogen sensors based on co-sputtered platinum-activated tungsten oxide films [J].

Zhang, Chao ;

Boudiba, Abdelhamid ;

Navio, Cristina ;

Bittencourt, Carla ;

Olivier, Marie-Georges ;

Snyders, Rony ;

Debliquy, Marc .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (01) :1107-1114

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