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Citation: SHEN Shui-Fa, LIN De-Juan, PAN Hai-Bo, CHEN Nai-Sheng, HUANG Jin-Ling. CO Sensor Fabricated by Pd-doped α-Fe₂O₃ Nano-powders[J]. Chinese Journal of Applied Chemistry, ;2001, 18(4): 295-298. shu

CO Sensor Fabricated by Pd-doped α-Fe₂O₃ Nano-powders

1.
Institute of Functional Materials, Fuzhou University, Fuzhou 350002

Received Date: 10 July 2000
Available Online: 31 January 2001
Fund Project: 福建省科委资助项目(98-H-13) (98-H-13)

Fe₂O₃ nano-powders doped with Pd and other elements were prepared by co-precipitation and the doped sensor elements were characterized by XRD, TEM and specific surface area measurements CO sensors were fabricated with the nano-powders. The effects of the kinds and contents of doped elements, calcination temperature on the sensitivity of sensors were examined. The results showed that T-Fe₂O₃ doped with 5% Sn⁴⁺ and 1% Pd²⁺, calcinated at 450℃ gave the best sensitivity to CO.
- T-Fe₂O₃,
- CO,
- gas sensor,
- doping element
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沈阳化工大学材料科学与工程学院沈阳 110142

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CO Sensor Fabricated by Pd-doped α-Fe₂O₃ Nano-powders