Improvement in gas sensitivity of ZnO thick film to volatile organic compounds (VOCs) by adding TiO2
作者： B.L. Zhu , C.S. Xie , W.Y. Wang , K.J. Huang , J.H. Hu
DOI: 10.1016/S0167-577X(03)00582-2
关键词: Materials science 、 Operating temperature 、 Analytical chemistry 、 Acetone 、 Grain size 、 Volatile organic compound 、 Benzene 、 Xylene 、 Toluene 、 Phase (matter) 、 Chromatography
摘要: Abstract A highly sensitive ZnO–TiO2 based thick film volatile organic compound (VOC) sensor had been developed. TiO2 was mixed in ZnO various weight percentage (0%, 1%, 5% and 10%). The X-ray diffraction (XRD) analysis of mixtures sintered at 650 °C for 2 h revealed the appearance Zn2TiO4 phase, whereas surface morphological studies films on mixture indicated that average grain size increased with addition a small amount then decreased higher level. It observed sensitivity greatly increasing content TiO2. When sensors operated operating temperature 370 °C, their quasi-linearly concentration alcohol acetone, but to benzene, toluene xylene rapidly lower range slowly range. showed rapid response–recovery time response recovery around 10 5 s, respectively, >320 °C.
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sci-hub.se 参考文章(9)
B. L. Zhu, Synthesis and gas sensitivity of In-doped ZnO nanoparticles Journal of Materials Science: Materials in Electronics. ,vol. 14, pp. 521- 526 ,(2003) , 10.1023/A:1023989304943
Slavko Bernik, Petra Zupančič, Drago Kolar, Influence of Bi2O3/TiO2, Sb2O3 and Cr2O3 doping on low-voltage varistor ceramics Journal of The European Ceramic Society. ,vol. 19, pp. 709- 713 ,(1999) , 10.1016/S0955-2219(98)00301-X
Dae-Sik Lee, Sang-Do Han, Sang-Mun Lee, Jeung-Soo Huh, Duk-Dong Lee, The TiO2-adding effects in WO3-based NO2 sensors prepared by coprecipitation and precipitation method Sensors and Actuators B-chemical. ,vol. 65, pp. 331- 335 ,(2000) , 10.1016/S0925-4005(99)00441-4
A. Peigney, H. Andrianjatovo, R. Legros, A. Rousset, Influence of chemical composition on sintering of bismuth-titanium-doped zinc oxide Journal of Materials Science. ,vol. 27, pp. 2397- 2405 ,(1992) , 10.1007/BF01105049
J.S Chen, H.L Li, J.L Huang, Structural and CO sensing characteristics of Ti-added SnO2 thin films Applied Surface Science. ,vol. 187, pp. 305- 312 ,(2002) , 10.1016/S0169-4332(01)01039-X
Congchun Zhang, Yunxiang Hu, Wenzhong Lu, Minghe Cao, Dongxiang Zhou, None, Influence of TiO2/Sb2O3 ratio on ZnO varistor ceramics Journal of The European Ceramic Society. ,vol. 22, pp. 61- 65 ,(2002) , 10.1016/S0955-2219(01)00232-1
Hong-Ming Lin, Chia-Hsi Keng, Chiun-Yen Tung, Gas-sensing properties of nanocrystalline TiO2 Nanostructured Materials. ,vol. 9, pp. 747- 750 ,(1997) , 10.1016/S0965-9773(97)00161-X
Tae-Won Kim, U-Sung Choi, Seung-Woo Jung, Electrical conductivity and CO gas sensitivity of ZnO-TiO/sub 2/ composites ieee international conference on properties and applications of dielectric materials. ,vol. 2, pp. 847- 850 ,(1997) , 10.1109/ICPADM.1997.616569
V Guidi, D Boscarino, L Casarotto, E Comini, M Ferroni, G Martinelli, G Sberveglieri, Nanosized Ti-doped MoO3 thin films for gas-sensing application Sensors and Actuators B-chemical. ,vol. 77, pp. 555- 560 ,(2001) , 10.1016/S0925-4005(01)00703-1