Titanium carbide (MXene) nanosheets as promising microwave absorbers

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• 作者：Yuchang Qing ; ^{qtvbgyta@163.com" class="auth_mail" title="E-mail the corresponding author} ; Wancheng Zhou ; Fa Luo ; Dongmei Zhu
• 关键词：Ti3C2 nanosheets ; Dielectric properties ; Microwave absorption
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：1 November 2016
• 年：2016
• 卷：42
• 期：14
• 页码：16412-16416
• 全文大小：1190 K

文摘

The electromagnetic properties of Ti₃C₂ nanosheets, prepared by immersing Ti₃AlC₂ powders in HF and subsequent ultrasonication, were first investigated in the frequency range of 12.4–18 GHz. The Ti₃C₂ nanosheet filled composites showed high relative complex permittivity and microwave absorption as compared to those filled with the original Ti₃AlC₂ powders under the same content. Reflection loss values of the Ti₃C₂ nanosheets filled composites exceeded −11 dB (more than 92% absorption) in the frequency range of 12.4–18 GHz with a thickness of 1.4 mm. These results suggest that the Ti₃C₂ nanosheets with unique dielectric properties are highly promising fillers for dielectric and electromagnetic applications.