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Ultrathin, flexible, and oxidation-resistant MXene/graphene porous films for efficient electromagnetic interference shielding

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Abstract

Designing and fabricating efficient electromagnetic interference (EMI) shielding materials becomes a significant and urgent concern. Hence, a novel ultrathin, flexible, and oxidation-resistant MXene-based graphene (M-rGX) porous film is successfully fabricated by electrostatic self-assembly between MXene and graphene oxide (GO) nanosheets, and subsequently thermal annealing under hydrogen-argon atmosphere. The rapid breakaway of functional groups on GO and MXene sheets induces formation of porous conductive network in film, thereby facilitating efficient shielding for incident electromagnetic waves. The optimal absolute shielding effectiveness (SSE/t) value of 76,422 dB·cm2·g−1 can be achieved at a thinner thickness of 15 μm. More importantly, the effective removal of functional groups on MXene conspicuously improves the oxidation resistance of the film, endowing it with an excellent durability (12 months) in EMI shielding performance.

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Acknowledgements

We are gratefully for the financial support from the National Natural Science Foundation of China (Nos. 52003106, 21674019, and 52161135302), the Fundamental Research Funds for the Central Universities (Nos. JUSRP12032 and 2232019A3-03), the Research Foundation Flanders (No. G0F2322N), China Postdoctoral Science Foundation (No. 2021M691265), Ministry of Education of the People’s Republic of China (No. 6141A0202202), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Nos. KYCX22_2319 and SJCX22_1110), and Innovation Program of Shanghai Municipal Education Commission (No. 2021-01-07-00-03-E00108).

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  1. The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China

    Xinwei Tang, Jiangtao Luo, Zhiwei Hu, Shijie Lu, Xiaoyi Liu, Shuangshuang Li, Xu Zhao, Zihang Zhang, Qianqian Lan, Piming Ma, Zicheng Wang & Tianxi Liu

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  1. Xinwei Tang
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  2. Jiangtao Luo
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Correspondence to Zicheng Wang or Tianxi Liu.

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Ultrathin, flexible, and oxidation-resistant MXene/graphene porous films for efficient electromagnetic interference shielding

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Tang, X., Luo, J., Hu, Z. et al. Ultrathin, flexible, and oxidation-resistant MXene/graphene porous films for efficient electromagnetic interference shielding. Nano Res. 16, 1755–1763 (2023). https://doi.org/10.1007/s12274-022-4841-1

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