Volume 9, Issue 4 2401383
Research Article

Electrochemical Exfoliation of Large Antioxidative MXene Flakes for Polymeric Fire Safety

Dong Wang

Corresponding Author

Dong Wang

College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122 China

Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077 China

E-mail: [email protected]; [email protected]; [email protected]

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Shuo Shi

Shuo Shi

Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077 China

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Qiaoling Luo

Qiaoling Luo

College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122 China

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Yupei Su

Yupei Su

Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077 China

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Yuhao Ren

Yuhao Ren

College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122 China

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Jichao Zhang

Jichao Zhang

College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122 China

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Leqi Lei

Leqi Lei

Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077 China

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Yongqian Shi

Yongqian Shi

College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116 China

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Lishan Fan

Lishan Fan

School of Textile & Clothing, Yancheng Polytechnic College, Jiangsu, 224005 China

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Jinlian Hu

Corresponding Author

Jinlian Hu

Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077 China

E-mail: [email protected]; [email protected]; [email protected]

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Shaohai Fu

Corresponding Author

Shaohai Fu

College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122 China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 21 November 2024
Citations: 2

Abstract

Large-size MXene flakes have drawn growing attention due to their fascinating properties, which inevitably suffer from the low yield and weak oxidation resistance. Herein, an electrochemical exfoliation approach is proposed to achieve a high recording yield of 87% for preparing large antioxidative MXene flakes with an average lateral size of 8.3 µm, which combines the etching, electrolyte intercalation, interlay expansion, and short-time sonication. Moreover, the MXene flakes can keep stable for over three months in the presence of water and oxygen, and even have good stability over 500 °C under an air atmosphere, ascribed to the protection of the surface electrolyte layer. Combined with bacterial cellulose, the MXene can serve as an intelligent resistance-type sensor for contact/non-contact fire alarm, and further integrate with IoT for remote fire detection and warning within 1 s. In addition, the MXene significantly improves the flame-retardant properties of indoor textiles and household materials, owing to the large thermostable 2D barriers to restrain heat and mass transfer. This work establishes an innovative and efficient method to prepare the large antioxidative MXene flakes in high yield for practical usage and extends its application to polymeric fire safety.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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