Carbon dioxide gas sensor with ionic gel

  • K. Ishizu
  • , Y. Takei
  • , M. Honda
  • , K. Noda
  • , A. Inaba
  • , T. Itoh
  • , R. Maeda
  • , K. Matsumoto
  • , I. Shimoyama

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

17 Scopus citations

Abstract

This paper reports on a low-power-consumption carbon dioxide (CO 2) 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 CO 2 gas concentration by using power as small as 0.65 μW.

Original languageEnglish
Title of host publication2013 Transducers and Eurosensors XXVII
Subtitle of host publicationThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages1633-1636
Number of pages4
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 - Barcelona, Spain
Duration: 16 Jun 201320 Jun 2013

Publication series

Name2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013

Conference

Conference2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Country/TerritorySpain
CityBarcelona
Period16/06/1320/06/13

Keywords

  • Ionic gel
  • carbon dioxide
  • gas sensor
  • impedance measurement
  • ionic liquid

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