Acetylene Sensing Characteristics of SnO2 Nanowires

Bing Wang

doi:10.4028/www.scientific.net/AMR.1119.132

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1119Acetylene Sensing Characteristics of SnO2...

Acetylene Sensing Characteristics of SnO₂ Nanowires

Abstract:

SnO₂ nanowires have been fabricated using thermal evaporation of the mixed powders of SnO₂ and active carbon with Au catalysts. The morphology and structure of the prepared nanowires are determined on the basis of field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), x-ray diffraction (XRD) and transmission electron microscopy (TEM). The comb-shape interdigitating electrode made by MEMS technology is used to auxiliary investigating the gas sensing performance of the synthesized SnO₂ nanowires. The SnO₂ nanowires have sensing response to acetylene concentration of 1000 ppm under operated temperature of 300°C. The gas sensing mechanism is attributed to the gas adsorption and desorption processes occurring on the surface of the gas sensing material.

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Advanced Materials Research (Volume 1119)

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132-136

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1119.132

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Online since:

July 2015

Authors:

Bing Wang*

Keywords:

Gas Sensor, Nanowires, SnO₂

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