Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti3C2Tx composite films

GAO Fengjiao; CHANG Xueting; LI Junfeng; WANG Dongsheng; GAO Weixiang; SUN Shibin

Volume 41 Issue 7

Jul. 2024

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Article Navigation > Acta Materiae Compositae Sinica > 2024 > 41(7): 3660-3671

GAO Fengjiao, CHANG Xueting, LI Junfeng, et al. Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti3C2Tx composite films[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3660-3671.

Citation:

GAO Fengjiao, CHANG Xueting, LI Junfeng, et al. Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti₃C₂T_x composite films[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3660-3671.

GAO Fengjiao, CHANG Xueting, LI Junfeng, et al. Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti3C2Tx composite films[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3660-3671.

Citation:

GAO Fengjiao, CHANG Xueting, LI Junfeng, et al. Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti₃C₂T_x composite films[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3660-3671.

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Humidity-resistant ammonia sensor based on PTFE/ZnO/Ti₃C₂T_x composite films

1.
School of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
2.
Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
3.
Institute of Logistics Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

Funds: Shanghai Natural Science Foundation (No. 21ZR1426700)

Received Date: 2023-09-20
Accepted Date: 2024-01-05
Rev Recd Date: 2023-12-05

Available Online: 2024-02-24

Publish Date: 2024-07-15

Abstract

Abstract

The development of moisture-resistant room-temperature gas sensors based on semiconductor functional materials has always been a hot and difficult research topic in the field of gas sensors. Considering the high sensitivity and stability of metal oxide semiconductor, the room-temperature gas-sensing behaviors of Mxene (Ti₃C₂T_x) and the hydrophobicity of polytetrafluoroethylene (PTFE), we here prepared the PTFE/ZnO/Mxene composite films by depositing the PTFE and ZnO layers orderly onto the Mxene film surface via a magnetron sputtering method, followed by the construction of the gas sensors based on the composite films. The PTFE/ZnO/Mxene composite films were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS), and the gas-sensing and humidity-resistant properties of the composite films-based gas sensors were investigated. Results showed that the PTFE/ZnO/Ti₃C₂T_x composite films-based gas sensors exhibited good selectivity, high sensitivity, and excellent reproducibility towards ammonia at room temperature. With the increase of the thickness of the PTFE layers, the humidity resistance of the composite films-based gas sensors gradually increased, but at the cost of sensitivity.
- PTFE/ZnO/Mxene composite films,
- moisture resistance,
- magnetron sputtering,
- gas sensor,
- ammonia
Long Abstrsct
Innovation Points

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References(31)

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