Highly Water Durable NH3 Gas Sensor Based on Al3+ Ion Conducting Solid Electrolyte with NH4+-Gallate
Highly Water Durable NH3 Gas Sensor Based on Al3+ Ion Conducting Solid Electrolyte with NH4+-Gallate
复制标题
基于含 NH4-没食子酸盐的 Al3 离子导电固体电解质的高度耐水 NH3 气体传感器
DOI：
10.5796/electrochemistry.79.450
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发表时间：
2011
期刊：
影响因子：
2.5
通讯作者：
N. Imanaka
中科院分区：
文献类型：
--
作者：
Tsukasa Nagai;S. Tamura;N. Imanaka
采用Al3+离子导电(Al0.2Zr0.8)20/19Nb(PO4)3固体电解质，以NH4+-β-没食子酸盐(NH4+-Ga11O17)为辅助传感电极，制作了氨气传感器，并研究了其在潮湿大气中的性能。该传感器表现出比之前报道的 NH3 气体传感器先进的传感性能，即使在 230°C 含有 4.2 vol% H2O 的高度潮湿的大气中，也具有连续、定量和可重复的响应，遵循理论能斯特关系。因此，所提出的带有 NH4+-β-没食子酸盐辅助传感电极的传感器有望成为实用的现场 NH3 气体检测工具的合适候选者。
An ammonia gas sensor was fabricated using Al3+ ion conducting (Al0.2Zr0.8)20/19Nb(PO4)3 solid electrolyte with NH4+-β-gallate (NH4+-Ga11O17) as the auxiliary sensing electrode and its performance in humid atmosphere was investigated. The sensor exhibited advanced sensing performance than previously reported NH3 gas sensors with a continuous, quantitative and reproducible response that obeys the theoretical Nernst relationship even in a highly humidified atmosphere containing 4.2 vol % H2O at 230°C. Therefore, the proposed sensor with NH4+-β-gallate auxiliary sensing electrode is expected to be a suitable candidate for application as a practical on-site NH3 gas detecting tool.