Highly Deformable and Stable Gas Sensor Based on Anti-Drying Ionic Organohydrogel for O2 Gas Detection

Yuanqing Lin, Zixuan Wu, Yaoming Wei, Yuning Liang, Kankan Zhai, Kai Tao, Chunwei Li, Xi Xie, Jin Wu

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

Abstract

This paper presented a novel method to prepare organohydrogel-based stretchable O2 sensor with high performance, including good linearity, anti-drying property, low limit of detection (LOD) and long-term stability. A facile solvent replacement approach was devised to partially exchange water with xylitol molecules, generating the stable organohydrogel. Compared with gas sensor based on pristine hydrogel, this organohydrogel-based sensor displayed high water retention, leading to the prolonged life time (>30 days) therefore. In addition, LOD was lowered by 2.45 × to 0.56 ppm. Furthermore, the sensing mechanism was investigated, revealing an electrochemical reaction mechanism occurred at the electrode-hydrogel interface. This work provided a facile method for enhancing the performance of hydrogel-based gas sensor.

Original languageEnglish
Title of host publication21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages799-802
Number of pages4
ISBN (Electronic)9781665412674
DOIs
StatePublished - 20 Jun 2021
Event21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021 - Virtual, Online, United States
Duration: 20 Jun 202125 Jun 2021

Publication series

Name21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021

Conference

Conference21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Country/TerritoryUnited States
CityVirtual, Online
Period20/06/2125/06/21

Keywords

  • Anti-drying
  • O2 sensor
  • Organohydrogel
  • Solvent displacement
  • Stretchable gas sensor

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