Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan
Annual Meeting of The Ceramic Society of Japan, 2010
Session ID : 1B21
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Host: The Ceramic Society of Japan

Study on cerium oxide odor sensor by A.C. impedance technique
*Toshio Itoh, Yuko Taguchi, Noriya Izu, Ichiro Matsubara, Shunichi Nakamura, Kengo Suzuki, Keisen Kanda, Woosuck Shin, Maiko Nishibori
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Keywords: Cerium oxide, Gas sensor, A.C. impedance
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Abstract
We have investigated gas sensing properties of cerium oxide using A.C. impedance technique. The impedance analysis generally can divide d.c. resistance to three type contributions, R = Rb + Rgb + Rei, where R, Rb, Rgb, and Rei are d.c. resistance, bulk resistance, grain boundary resistance, and electrode interface resistance, respectively. In the case of cerium oxide, bulk resistance dominates the whole resistance response to odor gases.
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© The Ceramic Society of Japan 2010
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