Hydrogel-Based Gas Sensors for NO 2 and NH 3
Abstract
In this study, an innovative gas sensing mechanism, self-responsive sensing mechanism, has been detected in the supramolecular hydrogel-based sensors. The self-responsive ability of as-fabricated hydrogel-based sensors to the target gas (e.g., NO 2, NH 3, etc.) is determined by three synergetic supramolecular interactions, namely, hydrogen bonding, molecule crystallization, and electrostatic interactions existing in hydroxyls, poly(vinyl alcohol) (PVA) crystallization, and poly(ionic liquids) of the intrinsic hydrogel networks, respectively. On account of unique synergetic supramolecular interactions, the sensors not only exhibit a rapid, reversible, and reproducible response but also show good tensile and compressive properties and excellent recovery property. The results demonstrate the potential of the self-responsive sensing mechanism as a pathway to realize a new generation of highly responsive hydrogel-based gas sensors.
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Recent studies have reported the use of hydrogels as the sensitive material for gas-sensing applications such as NO2, NH3, CO2, and O2.
“Recent studies have reported the use of hydrogels as the sensitive material for gas-sensing applications, such as NO2, NH3, CO2, and O2”
From Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors. (2023) · cites this paper as [68]
Zhi et al. [68] prepared NH3 and NO2 hydrogel gas sensors based on PVA and CA double networks with a response of 31.60%, response/recovery times of 46/9 s for 40 ppm NH3, and low LODs of 140.85 ppb while being stretchable.
“Zhi et al. [68] prepared NH3 and NO2 hydrogel gas sensors based on PVA and CA double networks with the response of 31.60%, response/recovery times of 46/9 s for 40 ppm NH3 and low LODs of 140.85 ppb while being stretchable.”
From Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors. (2023) · cites this paper as [68]
Cites
Wu, J., Wu, Z., Han, S., Yang, B.-R., Gui, X., Tao, K., Liu, C., Miao, J., & Norford, L. K. (2019) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.8b17437 · Cited by 225 · see citing works
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Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors.
Luo, Y., Li, J., Ding, Q., Wang, H., Liu, C., & Wu, J. (2023) · Nano-Micro Letters · doi:10.1007/s40820-023-01109-2 · Cited by 236 · see citing works
“Zhi et al. [68] prepared NH 3 and NO 2 hydrogel gas sensors based on PVA and CA double networks with the response of 31.60%, response/recovery times of 46/9 s for 40 ppm NH 3 and low LODs of 140.85 ppb while being stretchable.”
MethodInfluential
- Authors
- Zhi, H., Gao, J., & Feng, L.
- Affiliations
- Dalian Institute of Chemical Physics (CN)
- Corresponding author
- Feng, Liang
- Venue
- ACS Sensors
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-02-21
- Volume
- 5
- Issue
- 3
- Pages
- 772-780
- ISSN
- 2379-3694 (ISSN-L)
- OpenAlex
- W3007740269
- Cited by
- 108
- References
- 1
- Citations by year
- 2026: 13 · 2025: 27 · 2024: 24 · 2023: 12 · 2022: 13 · 2021: 16 · 2020: 3
- FWCI
- 3.78
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- ACS Sensors (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Dalian Institute of Chemical Physics (DICP ZZBS201802)
- Chinese Academy of Sciences (KFJ-STS-ZDTP-083)
- Dalian Distinguished Young Scholars (2018RJ02)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Gas Sensing Nanomaterials and Sensors
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
- Physical Sciences › Chemistry › Organic Chemistry › Polydiacetylene-based materials and applications
- Keywords
- NO2 gas sensing, NH3 sensing, supramolecular hydrogels, poly(ionic liquids), hydrogen bonding, electrostatic interactions, gas sensing mechanism
- MeSH terms
- Ammonia, Carrageenan, Crystallization, Hydrogen Bonding, Nitrogen Dioxide, Polyvinyl Alcohol, Tensile Strength, Water, Spectroscopy, Fourier Transform Infrared, Hydrogels, Static Electricity
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