Chinese Journal of Applied Chemistry ›› 1994, Vol. 0 ›› Issue (4): 66-68.

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Solid Soution α-(Fe1-χSbχ)2O3(0≤χ≤02) as Gas Sensing Materials

Zhang Ruifang, Shen Yusheng, Zhang Tianshu   

  1. DepartmentVMaterials Science and Engineering, University of Science and Technology of China, Hefei 230026
  • Received:1993-09-13 Revised:1994-03-28 Published:1994-08-10 Online:1994-08-10

Abstract: The title solid solution has been prepared by coprecitation,The (Fe1-χSbχ)2O3 of up to χ=0.2 has a structure of corundum as α-Fe2O3.The substitution of Sb5+ for Fe3+ site in α-Fe2O3 leads to the decrease of resistance one order of magnitude lower and remarkable improvement in sensitivity to reducing gases.

Key words: α-Fe2O3, solid solution, gas sensing material