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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. shu

Gas Sensing Propery and Electric Conduction of ZnSnO₃

1.
Department of Materials Science and Engineering, University of Scicnce and Technology of China, Hefei 230026

Received Date: 20 April 1993
Available Online: 7 September 1993
Fund Project:

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 O^2-) 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.
- zinc stannate,
- gas sensor,
- property
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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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Gas Sensing Propery and Electric Conduction of ZnSnO₃