Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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NO Gas Sensing of ACFs Treated by E-beam Irradiation in H2O2 Solution

과산화수소 용액에 담지 된 활성탄소섬유의 전자선 조사에 따른 일산화질소 가스 감응

  • LEE, SANGMIN (Dept. of Chemical engineering and Applied Chemistry, Chungnam National Univ.) ;
  • PARK, MI-SEON (Dept. of Chemical engineering and Applied Chemistry, Chungnam National Univ.) ;
  • JUNG, MIN-JUNG (Dept. of Chemical engineering and Applied Chemistry, Chungnam National Univ.) ;
  • LEE, YOUNG-SEAK (Dept. of Chemical engineering and Applied Chemistry, Chungnam National Univ.)
  • 이상민 (충남대학교 응용화학공학과) ;
  • 박미선 (충남대학교 응용화학공학과) ;
  • 정민정 (충남대학교 응용화학공학과) ;
  • 이영석 (충남대학교 응용화학공학과)
  • Received : 2016.05.09
  • Accepted : 2016.06.30
  • Published : 2016.06.30
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Abstract

In this study, we treated pitch-based activated carbon fibers (ACFs) in hydrogen peroxide using electron beam (E-beam) irradiation to improve nitrogen monoxide (NO) sensing ability as an electrode material of gas sensor. The specific surface area of ACFs treated by E-beam irradiation with 400 kGy increased from $885m^2/g$ (pristine) to $1160m^2/g$ without any changes in structural property and functional group. The increase in specific surface area of the E-beam irradiated ACFs enhanced NO gas sensing properties such as response time and sensitivity. When the ACFs irradiated with 400 kGy, response time was remarkably reduced from 360 s to 210 s and sensitivity was increased by 4.5%, compared to the pristine ACFs. These results demonstrate convincingly that surface modification of ACFs using E-beam in hydrogen peroxide solution can enhance textural properties of ACFs and NO gas sensing ability of gas sensor at room temperature.

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References

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