University of Oulu

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.

MXene-polymer hybrid for high-performance gas sensor prepared by microwave-assisted in-situ intercalation

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Author: Zhou, Jin1; Hosseini Shokouh, Seyed Hossein1; Komsa, Hannu-Pekka1;
Organizations: 1Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P.O. Box 4500, Oulu, FIN-90014 Finland
2Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, FIN-90014 Finland
3Department of Electronics and Nanoengineering, Aalto University, Aalto, FIN-00076 Finland
4Department of Applied Physics, Aalto University, Aalto, FIN-00076 Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.7 MB)
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Language: English
Published: John Wiley & Sons, 2022
Publish Date: 2022-09-08


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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Series: Advanced materials technologies
ISSN: 2365-709X
ISSN-E: 2365-709X
ISSN-L: 2365-709X
Volume: 7
Issue: 9
Article number: 2101565
DOI: 10.1002/admt.202101565
Type of Publication: A1 Journal article – refereed
Field of Science: 222 Other engineering and technologies
Funding: This work was financially supported in part by the University of Oulu (project Entity) and the China Scholarship Council. The authors acknowledge funding from the Academy of Finland under Project No. 311058, 330214, and 325185. The authors thank the personnel of the Centre for Material Analysis at the University of Oulu for providing them with technical assistance.
Academy of Finland Grant Number: 325185
Detailed Information: 325185 (Academy of Finland Funding decision)
Copyright information: © 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.