Characteristics and performance of NASICON-based CO2 sensor using Bi8Nb2O17 plus Pt as solid-reference electrode
Characteristics and performance of NASICON-based CO2 sensor using Bi8Nb2O17 plus Pt as solid-reference electrode
复制标题
使用 Bi8Nb2O17 加 Pt 作为固体参比电极的基于 NASICON 的 CO2 传感器的特性和性能
DOI：
10.1016/j.snb.2012.12.084
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发表时间：
2013-03
期刊：
影响因子：
--
通讯作者：
Xing-Min Guo
中科院分区：
文献类型：
--
作者：
Heng-Yao Dang;Xing-Min Guo
研究了以Bi8Nb2O17+少量铂为固体参比电极的NASICON基CO2传感器的气敏特性，为该传感器在高CO2浓度下的应用提供了实验依据。与传统的铂参比电极传感器相比，固体参比电极的存在有效地提高了传感器的检测下限，因为固体参比电极的存在阻止了NASICON与二氧化碳和水反应生成碳酸盐或小苏打。扫描电子能谱分析表明，固体参比电极与NASICON形成了良好的键合界面，为传感器的热稳定性提供了有力的保证。此外，该传感器具有较快的响应时间、较小的湿度交叉敏感度和较小的500℃下共存氧分压的干扰。这些结果表明，使用Bi8Nb2O17+铂的复合材料作为固体参比电极是一种很有前途的NASICON基二氧化碳传感器。
The gas sensing properties of NASICON-based CO2sensor attached with a composite of Bi8Nb2O17plus small amount of Pt as a solid-reference electrode has been investigated for application of the sensor at high CO2concentration. Compared with conventional sensor coated with Pt reference electrode, the sensor attached with solid-reference electrode was found to efficiently improve the detection limit due to the presence of solid-reference electrode prevented NASICON reacting with CO2and water to form carbonate or bicarbonate. A good bonding interface between the solid-reference electrode and NASICON was formed as revealed by the scanning electron spectroscopy (SEM), which provided a powerful guarantee for the thermal stability of the sensor. Furthermore, the as-fabricated sensor also exhibited fast response time, small cross-sensitivity to humidity and little interference from the coexistent oxygen partial pressure at 500°C. All the present results suggest that using the composite of Bi8Nb2O17plus Pt as a solid-reference electrode is a promising candidate for NASICON-based CO2sensor.
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影响因子：
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作者：
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通讯作者：
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