Gas Response Properties of Noble Metal Modified TiO2 Gas Sensor

Mao Lin Zhang; Tao Ning; Yu Hong Yang

doi:10.4028/www.scientific.net/AMR.706-708.126

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 706-708Gas Response Properties of Noble Metal Modified...

Gas Response Properties of Noble Metal Modified TiO₂ Gas Sensor

Abstract:

The response characteristics of noble metal (platinum and palladium) modified TiO2 gas sensors were investigated, respectively. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the sensing films. In addition, the resistance of sensors response to oxygen partial pressure was discussed by Kroger–Vink model. The response properties indicated that Pt modified TiO2 was providing excellent response properties when the sensor exposed to hydrogen and oxygen. The response mechanism was suggested to arise from the activation energy (E) of the modified sensing films.

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Advanced Materials Research (Volumes 706-708)

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126-129

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.706-708.126

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Online since:

June 2013

Authors:

Mao Lin Zhang, Tao Ning, Yu Hong Yang

Keywords:

Activation Energy, Noble Metal Modified, TiO₂ Sensor

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