Enhanced ethanol sensing properties based on α-Fe2O3/In2O3 hollow microspheres

详细信息    查看全文

• 作者：Genliang Han (1)
  Qihai Lu (1)
  Guohan Liu (1) gssensor@vip.sina.com
  Xialei Ye (1)
  Shumei Lin (1)
  Yuzhe Song (1)
  Bin Liu (1)
  Xuhui Yang (1)
  Gongnong Li (1)
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2012
• 出版时间：September 2012
• 年：2012
• 卷：23
• 期：9
• 页码：1616-1620
• 全文大小：452.3 KB
• 参考文献：1. Z. Wu, K. Yu, S. Zhang, Y. Xie, J. Phys. Chem. C 112, 11307 (2008)
  2. X. Gou, G. Wang, J. Park, H. Liu, J. Yang, Nanotechnology 19, 125606 (2008)
  3. A. Qurashi, E.M. El-Maghraby, T. Yamazaki, T. Kikuta, Sens. Actuators B 147, 48 (2010)
  4. Z. Guo, J. Liu, Y. Jia, X. Chen, F. Meng, M. Li, J. Liu, Nanotechnology 19, 345704 (2008)
  5. S. Kim, I. Hwang, J. Choi, Y. Kang, J. Lee, Sens. Actuators B 155, 512 (2011)
  6. J. Lee, Sens. Actuators B 140, 319 (2009)
  7. F. Gyger, M. Hübner, C. Feldmann, N. Barsan, U. Weimar, Chem. Mater. 22, 4821 (2010)
  8. J. Zhang, S. Wang, Y. Wang, Y. Wang, B. Zhu, H. Xia, X. Guo, S. Zhang, W. Huang, S. Wu, Sens. Actuators B 135, 610 (2009)
  9. M. Rumyantseva, V. Kovalenko, A. Gaskov, E. Makshina, V. Yuschenko, I. Ivanova, A. Ponzoni, G. Faglia, E. Comini, Sens. Actuators B 118, 208 (2006)
  10. A. Chen, X. Huang, Z. Tong, S. Bai, R. Luo, C. Liu, Sens. Actuators B 115, 316 (2006)
  11. A. Zhu, Y. Chen, R. Wang, L. Wang, M. Cao, X. Shi, Sens. Actuators B 140, 185 (2009)
  12. M. Ivanovskaya, D. Kotsikau, G. Faglia, P. Nelli, Sens. Actuators B 96, 498 (2003)
  13. V. Golovanov, C.C. Liu, A. Kiv, D. Fuks, M. Ivanovskaya, Solid State Phys. 13(2), 68 (2009)
  14. M.I. Ivanovskaya, D.A. Kotsikau, A. Taurino, P. Siciliano, Sens. Actuators B 124, 133 (2007)
  15. M. Ivanovskaya, D. Kotsikau, G. Faglia, P. Nelli, S. Irkaev, Sens. Actuators B 93, 422 (2003)
  16. G. Korotcenkov, B.K. Cho, Sens. Actuators B 156, 527 (2011)
• 作者单位：1. Institute of Sensor Technology, Gansu Academy of Science, Lanzhou, 730000 China
• ISSN：1573-482X

文摘

α-Fe₂O₃ and In₂O₃ hollow microspheres were synthesized via a simple green hydrothermal route, and the α-Fe₂O₃/In₂O₃ composite sample was prepared by mixing two products above together in a molar ratio of 1:1. Traditional ceramic tube structure gas sensors were fabricated and their gas sensing characteristics were obtained. The results indicated that the α-Fe₂O₃/In₂O₃ sample showed an improved sensitivity and selectivity to ethanol, compared with either α-Fe₂O₃ or In₂O₃ sample. Moreover, the sensitivities of both In₂O₃ and α-Fe₂O₃/In₂O₃ sensors were good linear with gas concentrations (1–500 ppm) to ethanol, and the response was found to remain stable for 150 days. In addition, the gas sensing mechanism of ethanol detection has been discussed.