The CO sensing Property of ZnO composite ceramics by $SnO_2$ content

$SnO_2$ 첨가량에 따른 ZnO복합체의 일산화탄소 감응특성

  • Kim, Tae-Won (Department of Electronic Materials Engineering, Wonkwang University) ;
  • Jung, Seung-Woo (Department of Electronic Materials Engineering, Wonkwang University) ;
  • Choi, U-Sung (Department of Electronic Materials Engineering, Wonkwang University)
  • 김태원 (원광대학교 전자재료공학과) ;
  • 정승우 (원광대학교 전자재료공학과) ;
  • 최우성 (원광대학교 전자재료공학과)
  • Published : 1997.07.21

Abstract

In order to promote CO gas sensitivity, $SnO_2$ added ZnO prepared. The electrical conductivities and dielectric constants decreased by increasing $SnO_2$ content in air. The electrical conductivities in 1000ppm CO atmosphere were larger than in dry air. The measured CO sensitivities were $1{\sim}15.2$ at $100^{\circ}C{\sim}480^{\circ}C$. The maximum CO sensitivity of 15mol% $SnO_2$ added ZnO was 15.2 at $305^{\circ}C$.

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