Solid Electrolyte Type Ammonia Gas Sensor with High Water Durability
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Published:2013-03-15
Issue:12
Volume:50
Page:189-194
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ISSN:1938-5862
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Container-title:ECS Transactions
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language:
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Short-container-title:ECS Trans.
Author:
Tamura Shinji,Nagai Tsukasa,Imanaka Nobuhito
Abstract
Highly water durable ammonia gas sensor was fabricated by the combination of Al3+ ion conducting (Al0.2Zr0.8)20/19Nb(PO4)3 solid electrolyte and NH4+-β-gallate (NH4+-Ga11O17) auxiliary sensing electrode, and its NH3 gas sensing performance was investigated in humid atmospheres. The present sensor showed an advanced sensing performance of continuous, quantitative and reproducible response which obeys the theoretical Nernst relationship even in a highly humidified condition containing 4.2 vol% H2O at 230 {degree sign}C.
Publisher
The Electrochemical Society