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Ultralight Reduced Graphene Oxide Aerogels Prepared by Cation-assisted Strategy for Excellent Electromagnetic Wave Absorption by Zhang, Miaomiao; Fang, Xiaoke; Zhang, Yahong; Guo, Jianhui; Gong, Chunhong; Estevez, Diana; Qin, Faxiang; Zhang, Jingwei is a Materials Science article available to read on EtoBox.

What is Ultralight Reduced Graphene Oxide Aerogels Prepared by Cation-assisted Strategy for Excellent Electromagnetic Wave Absorption about?

In this work, to maximize the unique attributes of reduced graphene oxide (RGO) for excellent microwave absorption, the ultralight RGO aerogels with improved dispersion and interface polarization performance were fabricated via a facile cation-assisted hydrothermal treatment process. The prepared RGO/paraffin composite exhibits excellent microwave absorption (MA) performance in a wideband frequency range of 8.0 ∼ 18.0 GHz with an ultralow absorbent content of 0.5 wt.%. Such performance is comparable with most previously reported results on RGO-based composites but required much higher absorbent content. The mechanisms for the enhancement of polarization relaxation loss and conductive loss were investigated in detail. This study provides a promising and facile method for preparing RGO-based excellent microwave absorption materials with ultra-low filler content, which is significant for designing efficient MA absorbers.

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Author

Zhang, Miaomiao; Fang, Xiaoke; Zhang, Yahong; Guo, Jianhui; Gong, Chunhong; Estevez, Diana; Qin, Faxiang; Zhang, Jingwei

Publisher

Institute of Physics; IOP Publishing; Institute of Physics Publishing (ISSN 0957-4484)

Published

2020

Language

EN

Field

Materials Science (Physical Sciences)