센서학회지 (Journal of Sensor Science and Technology)

  • 제17권4호
  • /
  • Pages.303-307
  • /
  • 2008
  • /
  • 1225-5475(pISSN)
  • /
  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
권호 표지
DOI QR코드

DOI QR Code

Low temperature-operating NiO-CoO butane gas sensors

  • Jung, Dong-Ho (School of Metallurgical and Materials Engineering, Yeungnam University) ;
  • Choi, Soon-Don (School of Metallurgical and Materials Engineering, Yeungnam University) ;
  • Min, Bong-Ki (Instrumental Analysis Center, Yeungnam University)
  • 발행 : 2008.07.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

$NiO,\;Cu_2O,\;Mn_2O_3$ and $Cr_2O_3$ as p-type semiconductors were added in CoO with 15 wt.% ethylene glycol binder and measured the butane gas sensing characteristics. The highest sensitivity is obtained for the NiO-CoO sensors. CoO-20 at.% NiO sensor with 15 wt.% ethylene glycol binder sintered at $1100^{\circ}C$ for 24 h exhibits high sensitivity of 90 % to 5000 ppm butane gas at the sensor temperature of $250^{\circ}C$, compared to low sensitivities at the low operating temperature for commercial sensors. Response and recovery times are, respectively, within few seconds and 1min in the static flow system, indicating rapid adsorption and desorption of butane gas on sensor surface even at this low temperature.

키워드

참고문헌

  1. T. Oyabu, T. Osawa, and T. Kurobe, 'Sensing characteristics of tin oxide thick film gas sensors', J. Appl. Physic., vol. 53, no. 11, pp. 7125-7130, 1982 https://doi.org/10.1063/1.331605
  2. R. Lalauze and Z. Pijolat, 'A new approach to selective detection of gas by an $SnO_2$ solid state sensor', Sensors and Actuators, vol. 5, pp. 55-63, 1984 https://doi.org/10.1016/0250-6874(84)87006-7
  3. Y. Nakamura, 'Stability of the sensitivity of based elements in the field', Chem. Sens. Technol., vol. 2, pp. 71-80, 1989
  4. Y. Kim, 'Gas sensor and application', Kijun Press, Korea, pp. 44-51, 1992
  5. J. H. Chung and S. D. Choi, '$Co_3O_4$ butane gas sensor operating at low temperature (1)', J. Kor. Sensors Soc., vol. 5, pp.7-14, 1996
  6. S. D. Choi and B. K. Min, '$Co_3O_4$ -based isobutane sensor operating at low temperatures', Sensors and Actuators B, vol. 77, pp. 330-334, 2001 https://doi.org/10.1016/S0925-4005(01)00720-1
  7. B. D. Cullity, 'Elements of X-ray diffraction', 2nd. ed., Addison-Wesley, pp. 102-103, 1978
  8. D. D. Lee and D. H. Choi, 'Thick-film hydrocarbon gas sensors', Sensors and Actuators B, vol. 1, pp. 231-235, 1990 https://doi.org/10.1016/0925-4005(90)80207-G
  9. J. R. Anderson and M. Boudart, 'Catalysis-science and technology', vol 3, Springer-Verlag, pp. 83-90, 1982
  10. S. Yamauchi, Chemical sensor technology, vol 4, Kodansha Ltd. pp. 32-33, 1992
  11. C.O. Xu, Y. Tamaki, N. Miura, and N. Yamazoe, 'Grain size effects on sensitivity of porous $SnO_2$- based elements', Sensors and Actuators B, vol. 3, pp. 147-155, 1991 https://doi.org/10.1016/0925-4005(91)80207-Z
  12. K. Ihokura and J. Watson, 'The stannic oxide gas sensor, principles and applications', CRC Press, pp. 60-62, 1993.E. Aukurst and A. Muan, Trans. AIME, vol. 230, p. 379, 1964
  13. E. Aukurst and A. Muan, Trans. AIME, vol. 230, p. 379, 1964