Gas-Sensing Properties of Pt-V2O5 Thin Films for Ethanol Detection

Viruntachar Kruefu; Pusit Pookmanee; Anurat Wisitsoraat; Sukon Phanichphant

doi:10.4028/www.scientific.net/KEM.659.259

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 659Gas-Sensing Properties of Pt-V2O5 Thin Films for...

Gas-Sensing Properties of Pt-V₂O₅ Thin Films for Ethanol Detection

Abstract:

In the present work, vanadium pentoxide (V₂O₅) nanoparticles have been investigated for monitoring ethanol (C₂H₅OH) at ppm levels in air. A one-step flame spray pyrolysis (FSP) process has been applied for the synthesis of vanadium pentoxide (V₂O₅) and platinum-loaded vanadium pentoxide (Pt-V₂O₅) nanoparticles. The samples have been studied to characterize their morphological and microstructural properties by X-ray diffraction and transmission electron microscopy. Pt addition to V₂O₅ samples were verified by energy dispersive X-ray spectrometry mode. The specific surface area of the nanoparticles was measured by nitrogen adsorption method. The application of the produced nanoparticles as sensitive and selective ethanol resistive sensor has been demonstrated. The Pt-loaded V₂O₅ sensor has shown higher response towards ethanol at ppm-level concentrations compared to unloaded one.

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Periodical:

Key Engineering Materials (Volume 659)

Pages:

259-263

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.659.259

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Online since:

August 2015

Authors:

Viruntachar Kruefu*, Pusit Pookmanee, Anurat Wisitsoraat, Sukon Phanichphant

Keywords:

Ethanol, Flame Spray Pyrolysis, Gas Sensor, Platinum, Vanadium Pentoxide

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