Trial of an All-Ceramic SnO2 Gas Sensor Equipped with CaCu3Ru4O12 Heater and Electrode

Materials

Norimitsu Murayama¹  Yoshiaki Kinemuchi²  Toshio Itoh²  Akihiro Tsuruta²  Masashi Mikami²  Woosuck Shin²  Ichiro Terasaki² 

[1] National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8565, Japan;National Institute of Advanced Industrial Science and Technology (AIST), Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, Japan;

关键词: conducting oxide;    ceramics heater;    gas sensor;    perovskite;   

DOI  :  10.3390/ma11060981

来源: DOAJ

【 摘 要 】

We have constructed a gas sensor of SnO2 equipped with ceramic electrodes and a heater made of CaCu3Ru4O12, which demonstrated good device performance at high temperature. The CaCu3Ru4O12-based electrodes and heater were formed on Al2O3 substrates using a screen-printing process, which is cost-effective and suitable for mass-production. This all-ceramic device reached 600 °C at the lowest, and remained intact after one week of operation at 500 °C and rapid thermal cycling of 500 °C temperature changes within 10 s. We propose CaCu3Ru4O12 as a robust and reliable conducting material that can be a substitute for Pt in various devices.

【 授权许可】

Unknown