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Effects of Porous Structure of the Auxiliary Electrode on the CO2 Sensing Properties of a NASICON-based Sensor


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Title: Effects of Porous Structure of the Auxiliary Electrode on the CO2 Sensing Properties of a NASICON-based Sensor
Authors: Morio, Masataka / Hyodo, Takeo / Shimizu, Yasuhiro / Egashira, Makoto
Issue Date: 29-Jan-2008
Citation: Nagasaki Symposium on Nano-Dynamics 2008 (NSND2008), pp.32-33
Abstract: Structural effects of the auxiliary electrode layer on the CO_2 sensing properties of NASICON (Na_3Zr_2Si_2PO_<12>) solid electrolyte sensors have been investigated. The sensor with a macroporous Li_2CO_3-BaCO_3-based auxiliary layer showed faster CO_2 response and recovery and a smaller EMF drift against a humidity change than those observed for the sensor equipped with a dense auxiliary layer. The CO_2 response of the present sensors was slightly larger than the theoretical one. This suggests the existence of some impurities capable of reacting with CO_2 in the auxiliary layer prepared in the present study.
Description: Nagasaki Symposium on Nano-Dynamics 2008 (NSND2008) 平成20年1月29日(火)於長崎大学 Poster Presentation
Keywords: CO_2 / Gas sensor / NASICON / macropores
URI: http://hdl.handle.net/10069/9842
Type: Presentation
Appears in Collections:Nagasaki Symposium on Nano-Dynamics 2008 (NSND2008)

Citable URI : http://hdl.handle.net/10069/9842

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