MXene-polymer hybrid for high-performance gas sensor prepared by microwave-assisted in-situ intercalation
Zhou, Jin; Hosseini Shokouh, Seyed Hossein; Komsa, Hannu-Pekka; Rieppo, Lassi; Cui, Linfan; Lv, Zhong-Peng; Kordas, Krisztian (2022-03-09)
Zhou, J., Hosseini, S. H., Komsa, H.-P., Rieppo, L., Cui, L., Lv, Z.-P., Kordas, K., MXene-Polymer Hybrid for High-Performance Gas Sensor Prepared by Microwave-Assisted In-Situ Intercalation. Adv. Mater. Technol. 2022, 7, 2101565. https://doi.org/10.1002/admt.202101565
© 2022 The Authors. Advanced Materials Technologies published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2022090857903
Tiivistelmä
Abstract
2D transition-metal carbides (Ti₃C₂Tₓ MXene) intercalated with organic molecules have been widely used in batteries and supercapacitors, but are quite rarely reported for gas sensing. Since Ti₃C₂Tₓ is sensitive to oxygen, most methods for preparing the intercalated Ti₃C₂Tₓ involve stirring the reactants with Ti₃C₂Tₓ for several hours under nitrogen protection. Herein, a method to prepare a hybrid of Ti₃C₂Tₓ and intercalated polysquaraine through microwave-assisted in situ polymerization that takes only a few minutes without the need of using a protective atmosphere is demonstrated. Owing to the increased interlayer space of the Ti₃C₂Tₓ after the polymerization, the gas sensors based on the hybrid exhibit a good sensing performance for NH3 detection, being able to detect at least 500 ppb NH₃ with a 2.2% ppm⁻¹ of sensitivity. This study provides a facile preparation method for developing intercalated MXenes, which are expected to be useful for a wide range of applications.
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