Metal oxides for solid-state gas sensors: What determines our choice?
2007; Elsevier BV; Volume: 139; Issue: 1 Linguagem: Inglês
10.1016/j.mseb.2007.01.044
ISSN1873-4944
Autores Tópico(s)Analytical Chemistry and Sensors
ResumoThe analysis of various parameters of metal oxides and the search of criteria, which could be used during material selection for solid-state gas sensor applications, were the main objectives of this review. For these purposes the correlation between electro-physical (band gap, electroconductivity, type of conductivity, oxygen diffusion), thermodynamic, surface, electronic, structural properties, catalytic activity and gas-sensing characteristics of metal oxides designed for solid-state sensors was established. It has been discussed the role of metal oxide manufacturability, chemical activity, and parameter's stability in sensing material choice as well.
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