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NO Decomposition Property of Lanthanum Manganite Porous Electrodes

Published online by Cambridge University Press:  18 March 2011

Kazuyuki Matsuda ,
Takao Kanai ,
Masanobu Awano  and
Kunihiro Maeda
Kazuyuki Matsuda
Affiliation:
Synergy Ceramics Laboratory, Fine Ceramics Research Association, Nagoya, 463-8687, JAPAN
Takao Kanai
Affiliation:
Synergy Ceramics Laboratory, Fine Ceramics Research Association, Nagoya, 463-8687, JAPAN
Masanobu Awano
Affiliation:
National Industrial Research Institute of Nagoya, Nagoya, 463-8687, JAPAN
Kunihiro Maeda
Affiliation:
Synergy Ceramics Laboratory, Fine Ceramics Research Association, Nagoya, 463-8687, JAPAN
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Abstract

The NOx decomposition activity of electrochemical cells composed of YSZ solid electrolyte and La1−xCaxMnO3 porous electrodes was examined. La1−xCaxMnO3 powders were prepared by solid-state reaction using corresponding metal oxides and carbonates. The powders were dispersed in polyethylene glycol and screen-printed on both sides of the electrolyte pellet. The electrochemical decomposition of NO was carried out in the temperature range from 973 to 1173 K by passing a mixed gas of 1000 ppm NO and 2% O2 in He through the cell. When the DC voltage was applied to the cell, NO was directly decomposed to N2 and O2 in the oxidizing atmosphere. The cells composed of the La0.8Ca0.2MnO3 electrodes showed a higher NO decomposition ratio and current efficiency than that of other La1−xCaxMnO3 electrodes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 658: Symposium GG – Solid-State Chemistry of Inorganic Materials III , 2000 , GG9.36
Copyright
Copyright © Materials Research Society 2001

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References

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