With the increasingly serious electromagnetic wave(EMW)pollution,the development of high-performance EMW absorbing materials(EWAMs)has become a hot topic.Carbon-based EWAMs have excellent chemical stability,high elect...With the increasingly serious electromagnetic wave(EMW)pollution,the development of high-performance EMW absorbing materials(EWAMs)has become a hot topic.Carbon-based EWAMs have excellent chemical stability,high electrical conductivity,and strong dielectric loss.In particular,three-dimensional(3D)porous carbon-based EWAMs have been widely developed in the EMW absorption field.The 3D porous structure not only reduces the materials’mass density,but also improves the multiple reflections of incident EMWs and impedance matching.The carbon-based EWAMs are thus expected to achieve the goals of low density,low thickness,wide absorption bandwidth,and strong absorption.Herein,we first restated the relevant theoretical basis and evaluation methods.Then,we summarized the recent research progress of 3D porous carbon-based EWAMs with the source of the materials as the main clue.Some unique and novel viewpoints were highlighted.Finally,the challenges and prospects of 3D porous carbon-based EWAMs were put forward,which is helpful for guiding a further development of high-performance EWAMs.展开更多
基金supported by the National Key R&D Program of China(2021YFB3502500)the Natural Science Foundation of Shandong Province(2022HYYQ-014 and ZR2016BM16)+4 种基金the Provincial Key Research and Development Program of Shandong(2019JZZY010312)the New 20 Funded Programs for University of Jinan(2021GXRC036)Shenzhen Municipal Special Fund for Guiding Local Scientific and Technological Development(China 2021Szvup071)the Joint Laboratory Project of Electromagnetic Structure Technology(637-2022-70-F-037)Qilu Young Scholar Program of Shandong University(31370082163127)。
文摘With the increasingly serious electromagnetic wave(EMW)pollution,the development of high-performance EMW absorbing materials(EWAMs)has become a hot topic.Carbon-based EWAMs have excellent chemical stability,high electrical conductivity,and strong dielectric loss.In particular,three-dimensional(3D)porous carbon-based EWAMs have been widely developed in the EMW absorption field.The 3D porous structure not only reduces the materials’mass density,but also improves the multiple reflections of incident EMWs and impedance matching.The carbon-based EWAMs are thus expected to achieve the goals of low density,low thickness,wide absorption bandwidth,and strong absorption.Herein,we first restated the relevant theoretical basis and evaluation methods.Then,we summarized the recent research progress of 3D porous carbon-based EWAMs with the source of the materials as the main clue.Some unique and novel viewpoints were highlighted.Finally,the challenges and prospects of 3D porous carbon-based EWAMs were put forward,which is helpful for guiding a further development of high-performance EWAMs.
