Metal Oxide/Nitrogen-Doped Carbon Nanosheet Heteronanostructures as Highly Efficient Electromagnetic Wave Absorbing Materials |
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| Authors: | Yilin Huang Weidong Xue Xingwang Hou Rui Zhao |
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| Institution: | School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China; (Y.H.); (W.X.); (X.H.) |
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| Abstract: | In this paper, we will discuss the excellent broadband microwave absorption behaviors of Cu/CuO/carbon nanosheet composites: traces of copper and oxide embedded in a carbon nano-sheet not only cut down the high permittivity of adsorbs but also induce more interfacial polarization centers. The results showed that at a cracking temperature of 900 °C, the fabricated material has a unique ripple-like structure, which promotes the hierarchical interfacial polarization. The prepared material has a maximum absorption bandwidth of 4.48 GHz at an exceedingly thin thickness of 1.7 mm and a maximum reflection loss of −25.3 dB at a thickness of 2 mm. It is a relatively ideal material for electromagnetic wave absorption. |
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| Keywords: | metal phthalocyanine carbon nanosheet solid-state pyrolysis electromagnetic wave absorption |
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