Solid-state amperometric CH4 sensor using, LaGaO3-based electrolyte

摘要：

A solid-state amperometric CH4 sensor using a LaGaO3-based electrolyte was studied. For this sensor, a combination of active (anode) and inactive (cathode) electrodes for CH4 oxidation was applied. Among the various active electrode materials studied, Pd mixed with tin-doped In2O3 (ITO) was found to be the most active electrode and RuO2 the most inactive one. The sensitivities of the sensor using La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte to CH4 were approximately 797μA/decade at 673 K and 188 μA/decade at 873 K. The changes in oxygen pumping current upon exposure to CH4 could be attributed to the mixed potential generated by the difference in oxidation activity between the active and inactive electrodes.

关键词： CH4 sensor Amperometric LaGaO3-based ozide electrolyte

作者: Zhonghe Bi Hiroshige Matsumoto Tatsumi Ishihara

作者单位: Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, F Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, F

会议类型: 国际会议

会议名称: The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)

会议地点: 上海

会议语种:英文

页码: 1641-1644

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）