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Citation: Zeng Huanxing, Wen Xiangyang. GAS SENSING CHARACTERISTICS OF Fe₂O₃-SnO₂ COMPOSITE[J]. Chinese Journal of Applied Chemistry, ;1992, 9(1): 51-55. shu

GAS SENSING CHARACTERISTICS OF Fe₂O₃-SnO₂ COMPOSITE

Zeng Huanxing ^, ,
Wen Xiangyang

1.
University of Science and Technology of China

Corresponding author: Zeng Huanxing,
Received Date: 27 November 1990
Available Online: 1 March 1991

The character and mechanism of Fe₂O₃-SnO₂ composite as a gas sensor were studied. The effects of grain size of iron oxides and the ratio Fe₂O₃ to SnO₂ on gas sensing property were examined.The Fe₂O₃-SnO₂ composite as a gas sensing element has a mixed mechanism of bulkcontrolled type and surface-controlled type. The Fe₂O₃-SnO₂ composite doped with CuO, may be used as C₂H₂ gas Sensor.
- iron oxides,
- gas sensor,
- mechanism,
- C₂H₂
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GAS SENSING CHARACTERISTICS OF Fe₂O₃-SnO₂ COMPOSITE