引用本文:
张天舒, 沈瑜生, 晋传贵. ZnSnO3陶瓷材料气敏特性与导电机理[J]. 应用化学,
1994, 11(2): 31-34.
Citation: Zhang Tianshu, Shen Yusheng, Jing Chuangui. Gas Sensing Propery and Electric Conduction of ZnSnO3[J]. Chinese Journal of Applied Chemistry, 1994, 11(2): 31-34.
Citation: Zhang Tianshu, Shen Yusheng, Jing Chuangui. Gas Sensing Propery and Electric Conduction of ZnSnO3[J]. Chinese Journal of Applied Chemistry, 1994, 11(2): 31-34.
ZnSnO3陶瓷材料气敏特性与导电机理
English
Gas Sensing Propery and Electric Conduction of ZnSnO3
Abstract:
The adsorption of oxygen on ZnSnO3 has been studied by X-ray photoelectron spectroscopy.At temperatures ranging from 25℃ to 300℃ the charge states of the chemisorbed oxygen were found to be O2- and O-,and the former may convert into O-(or O2-) with increasing temperature.ZnSnO3 is a typical surface-controlled sensor.The activation energy of oxygen adsorbed on ZnSnO3 was 0.52eV.The ZnSnO3-based sensor showed the greatest sensitivity to C2H5OH gas than to other reducing gases:petrol,C2H2,LPG,and H2.
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Key words:
- zinc stannate
- / gas sensor
- / property
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