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Structure and Gas‐Sensing Behavior of Electrospun Titania‐Doped Chromium Oxide Fibers
Author(s) -
Zheng Yangong,
Wang Jing,
Chen Pengpeng,
Li Chunyan,
Li Xiaogan
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02829.x
Subject(s) - materials science , electrospinning , humidity , doping , oxide , chemical engineering , chromium , polyacrylonitrile , polymer , composite material , optoelectronics , metallurgy , physics , engineering , thermodynamics
Titania‐doped chromium oxide ( CTO ) can serve as an active gas‐sensing material. It has been successful in commercial gas sensors due to its good gas‐sensing performance and stability in humid environment; especially with respect of volatile organic compounds ( VOC s). CTO fibers with reticular structure were prepared by electrospinning technology and the sensing behavior upon exposure to ethanol was characterized in this report. The gas sensors made of CTO fibers show a good response to ethanol and stability for a long term at operating temperature of 400°C. The experimental results have been analyzed and simulated using the response equations. The humidity effects on the sensor performance were also evaluated. The results indicate that the CTO fibers could be used in practical applications.