SnO₂ Nanofibers Gas Sensor Detecting H₂ Dissolved in Transformer Oil

Abstract:

Hydrogen is an effective fault gas dissolved in transformer oil, and online monitoring its concentration has important meaning on condition assessment and fault diagnosis of power transformer. A facile and simple synthesis method of ultra-sensitive SnO₂ nanofibers through a hydrothermal approach was reported. The crystalline phases and microstructures were performed by X-ray powder diffraction and field-emission scanning electron microscopy. The gas sensor based on prepared SnO2 nanofibers was fabricated by a side-heated preparation, and its gas sensing performances to H₂ were measured. The fabricated sensor exhibits excellent sensing properties to H₂, such as low optimum operating temperature, high gas response, rapid response and recovery time, good stability and repeatability.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 1008-1011
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.1008
• Online since: June 2013
• Authors: Shu Di Peng, Gao Lin Wu, Qian Wang
• Keywords: Gas Sensor, H₂ Sensing Properties, SnO₂ Nanofibers, Transformer Oil

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