Simultaneous Detection of Mixed-Gas Components by Ionic-Gel Sensors with Multiple Electrodes
Simultaneous Detection of Mixed-Gas Components by Ionic-Gel Sensors with Multiple Electrodes
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DOI：
10.1021/acssensors.1c02721
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发表时间：
2022-03-25
期刊：
影响因子：
8.9
通讯作者：
Uchida, Ken
中科院分区：
文献类型：
--
作者：
Tanaka, Takahisa;Hamanaka, Yusuke;Uchida, Ken
基于呼吸的健康监测和诊断需要检测混合气体中的气体成分。在这项工作中，我们报告了使用由[EMIM][BF_4]基离子凝胶组成的传感器与由Au，Pt，Rh和Cr制成的四个电极的混合气体组分的同时检测。任何给定的电极对之间的电压取决于离子凝胶中吸收的气体分子和电极的组成元素。当使用所有电极对之间的电压信号时，通过基于神经网络的推断同时估计H2、NH3和C2H5OH浓度。从分子动力学模拟，电压信号的起源归因于电极上的催化产生的吸附质。
The sensing of gas components in a mixed gas is required forbreath-based health monitoring and diagnosis. In this work, we report thesimultaneous detection of mixed-gas components using a sensor consistingof [EMIM][BF4]-based ionic gel with four electrodes made of Au, Pt, Rh,and Cr. The voltage between any given pair of electrodes depends on the gasmolecules absorbed in the ionic gel and the elements the electrodes aremade of. When the voltage signals between all pairs of electrodes were used,H2,NH3, and C2H5OH concentrations were simultaneously estimated by aneural-network-based inference. From molecular dynamics simulations, theorigin of the voltage signal was attributed to the catalytically generatedadsorbates on the electrodes.