Carbon dioxide gas sensor with ionic gel

Carbon dioxide gas sensor with ionic gel
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带离子凝胶的二氧化碳气体传感器

DOI：
10.1109/transducers.2013.6627097
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发表时间：
2013
期刊：
2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII)
影响因子：
--
通讯作者：
I. Shimoyama
I. Shimoyama
中科院分区：
--
文献类型：
--
作者：
K. Ishizu;Y. Takei;M. Honda;K. Noda;A. Inaba;T. Itoh;R. Maeda;K. Matsumoto;I. Shimoyama

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This paper reports on a low-power-consumption carbon dioxide (CO2) gas sensor based on an ionic gel. Ionic gel is a mixture of ionic liquid and polymer. We employed 1-ethyl-3-methyl-imidazolium tetrafuloroborate ([EMIM][BF4]) as ionic liquid and polyvinylidene fluoridecohexafluoro propylene (PVDF-HFP) as polymer. The [EMIM][BF4] selectively absorbs CO2 gas. Our proposal sensor consisted of an ionic gel and two Pt electrodes patterned under the ionic gel. The CO2 gas concentration can be detected by measuring the electrochemical impedance between the two electrodes. The sensor was able to measure the difference of 500 ppm CO2 gas concentration by using power as small as 0.65 μW.