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Journal of Inorganic Materials

Journal of Inorganic Materials

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Preparation and Gas-sensing Properties of YFe1-yCoyO3 Semiconducting Materials

GE Xiu-Tao1; FENG Jian1; HOU Chang-Ping1; LI Yong-Hong1; NI Shou-Chun2; LIU Xing-Qin3   

  1. 1. Department of Chemistry Chuzhou Normal College; Chuzhou 239012; China; 2. Department of Physics Chuzhou Normal College. Chuzhou 239012. China; 3. Department of Materials Science and Engineering University of Science and Technology of China, Hefei 230026, China
  • Received:2001-06-04 Revised:2001-08-29 Published:2002-05-20 Online:2002-05-20

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Abstract: The nano-crystal powders of perovskite-type solid solution YFe1-yCoyO3 (0≤y≤0.50) were prepared by chemical coprecipitation. The preparation conditions, phase constituents, conductance and gas-sensing properties were investigated. The results demonstrated that YFe1-yCoyO3 shows p-type semiconducting properties and it has high sensitivity and good selectivity to C2H5OH when y=0.10.

Key words: cobalt doping, YFe1-yCoyO3 solid solution, conductance: alcohol sensor

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