Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Sensing Properties of ZrO2-added SnO2 for Nerve and Blister Agent

ZrO2 첨가된 SnO2를 이용한 신경 및 수포작용제 검지에 대한 연구

  • Yun, Ky-Youl (Kyungpook National University Materials Science & Metallurgy) ;
  • Cha, Gun-Young (Kyungpook National University Materials Science & Metallurgy) ;
  • Choi, Nak-Jin (Kyungpook National University Electronic and Electrical Engineering) ;
  • Lee, Duk-Dong (Kyungpook National University Electronic and Electrical Engineering) ;
  • Kim, Jae-Chang (Kyungpook National University Chemical Engineering) ;
  • Huh, Jeung-Soo (Kyungpook National University Materials Science & Metallurgy)
  • 윤기열 (경북대학교 금속공학과) ;
  • 차건영 (경북대학교 금속공학과) ;
  • 최낙진 (경북대학교 전자전기공학부) ;
  • 이덕동 (경북대학교 전자전기공학부) ;
  • 김재창 (경북대학교 화학공학과) ;
  • 허증수 (경북대학교 금속공학과)
  • Published : 2004.09.30
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Abstract

N-type semi-conducting oxides such as $SnO_{2}$, ZnO, and $ZrO_{2}$ have been known for the detecting materials of inflammable or toxic gases. Of those materials, $SnO_{2}$-based sensors are well known as high sensitive materials to detect toxic gases. And the sensitivity is improved if catalysts are added. Detecting toxic gases, especially DMMP (di-methyl-methyl-phosphonate) and DPGME (Dipropylene glycol methyl ether), was performed by a mixture of Tin oxide ($SnO_{2}$) and Zirconia ($ZrO_{2}$). The films consist of each three different mass% of Zr (from 1 mass% to 5 mass%), and they were tested by XRD, SEM, TEM, BET. Nano-structure, pore and particle size was controlled to verify the sensor's sensing mechanism. The sensors was evaluated at five different degrees (from $200^{\circ}C$ to $400^{\circ}C$) and three different concentrations (from 500 ppb to 1500 ppb). The sensors had good sensitivity of both simulants, and high selectivity of DMMP.

Keywords

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