Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene)
Abstract
Wearable gas sensors have received lots of attention for diagnostic and monitoring applications, and two-dimensional (2D) materials can provide a promising platform for fabricating gas sensors that can operate at room temperature. In the present study, the room temperature gas-sensing performance of Ti 3 C 2 T x nanosheets was investigated. 2D Ti 3 C 2 T x (MXene) sheets were synthesized by removal of Al atoms from Ti 3 AlC 2 (MAX phases) and were integrated on flexible polyimide platforms with a simple solution casting method. The Ti 3 C 2 T x sensors successfully measured ethanol, methanol, acetone, and ammonia gas at room temperature and showed a p-type sensing behavior. The fabricated sensors showed their highest and lowest response toward ammonia and acetone gas, respectively. The limit of detection of acetone gas was theoretically calculated to be about 9.27 ppm, presenting better performance compared to other 2D material-based sensors. The sensing mechanism was proposed in terms of the interactions between the majority charge carriers of Ti 3 C 2 T x and gas species.
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Acetone concentration in breath can be used as a biomarker for diabetes.
“the acetone concentration in the breath can be used as a biomarker for diabetes”
From Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors. (2023) · cites this paper as [23]
Detection of breath humidity enables respiratory monitoring.
“the detection of breath humidity enables respiratory monitoring”
From Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors. (2023) · cites this paper as [23]
Cites
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Recent advances in energy-saving chemiresistive gas sensors: A review
Majhi, S. M., Mirzaei, A., Kim, H. W., Kim, S. S., & Kim, T. W. (2021) · Nano Energy · doi:10.1016/j.nanoen.2020.105369 · Cited by 653 · see citing works
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Flexible MXene/rGO/CuO hybrid aerogels for high performance acetone sensing at room temperature
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- Authors
- Lee, E., VahidMohammadi, A., Prorok, B. C., Yoon, Y. S., Beidaghi, M., & Kim, D.-J.
- Affiliations
- Auburn University (US)
- Gachon University (KR)
- Corresponding author
- Beidaghi, Majid
- Kim, Dong-Joo
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-10-11
- Volume
- 9
- Issue
- 42
- Pages
- 37184-37190
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2760568872
- Cited by
- 878
- References
- 1
- Citations by year
- 2026: 69 · 2025: 138 · 2024: 144 · 2023: 144 · 2022: 134 · 2021: 106 · 2020: 75 · 2019: 51 · 2018: 17
- FWCI
- 16.26
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Applied Materials & Interfaces (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Office of Experimental Program to Stimulate Competitive Research (GRSP R11)
- Samuel Ginn College of Engineering
- Agency for Defense Development (UD160050BD)
- Korea Institute of Energy Technology Evaluation and Planning (20158520000210)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Gas Sensing Nanomaterials and Sensors
- Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
- Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
- Keywords
- MXene, Ti3C2Tx nanosheets, room-temperature gas sensing, wearable gas sensors, flexible polyimide substrate, MAX phases, acetone detection, ammonia detection, ethanol detection, methanol detection, detection limit, sensing mechanism, two-dimensional materials
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