Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Electrospun Nanofibrous Polyacrylonitrile(PAN)/ Fe2O3 Membrane as Co2Gas Sensor

  • Kim, Ye-Na (Department of Materials Engineering, Daelim College of Technology) ;
  • Park, Eun-Young (Department of Materials Engineering, Daelim College of Technology) ;
  • Lee, Deuk-Yong (Department of Materials Engineering, Daelim College of Technology) ;
  • Lee, Myung-Hyun (Next Generation Enterprise Group KICET) ;
  • Lee, Se-Jong (Department of Advanced Materials Engineering, Kyungsung University) ;
  • Kim, Bae-Yeon (Department of Advanced Materials Engineering, University of Incheon) ;
  • Cho, Nam-Ihn (Department of Electronic Engineering, Sun Moon University)
  • Published : 2007.04.30
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Abstract

Polyacrylonitrile (PAN)/$Fe_2O_3$ nanocomposite membranes with a thickness of 0.02 mm were electrospun by adding 0 to 5 wt% of $Fe_2O_3$ into PAN. The surface tension, density, kinematic viscosity and dynamic viscosity of the PAN solution were determined to be $33.8{\pm}1mN/m$, 0.9794 g/ml, $1548.6mm^2/sec$ and 1516.7 cP, respectively. The average diameters of PAN fibers containing 0, 1 2, 3, and 4 wt% $Fe_2O_3$ particles were 300, 260, 210, 130, and 90 nm, respectively. Fourier-transform infrared spectroscopy results showed that the addition of $Fe_2O_3$ nanoparticles to the PAN mat reduced the absorption peak intensity at $2242cm^{-1}$ ($C{\equiv}N$ bond) while it caused a sharp increase in the peak intensity at $2356cm^{-1}$(C=O bond). Thus, it appears that an appropriate amount of $Fe_2O_3$ nanoparticles in the PAN backbone leads to an improvement of the performance of the $CO_2$ gas sensor, most likely due to the change of functional groups in the membrane.

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References

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