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Citation: Fu Mingong, Zhong Shike. A NEW TYPE OF SEMICONDUCTOR GAS SENSOR[J]. Chinese Journal of Applied Chemistry, ;1985, 2(4): 83-85. shu

A NEW TYPE OF SEMICONDUCTOR GAS SENSOR

Fu Mingong ,
Zhong Shike

1.
Department of Chemistry and Department of Physics of Jiangxi University

Received Date: 21 January 1985
Available Online: 6 May 1985

A new vacuum deposition method for the preparation of SnO₂ gas sensor element was describcd. Sn was first deposited directly on the surface of a hollow ceramic cylinder, the metallic tin on the cylinder was afterwards oxidized into SnO₂·Pd powder, used as catalyst, was coated on the surface of SnO₂ and a heater was placed in the hollow part of the cylinder. The SnO₂ gas sensor element thus obtained show a good sensitivity to reducible gases such as H₂, C₂H₅OH etc.
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