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Lightweight and Flexible Graphene Foam Composites for High‐Performance Electromagnetic Interference Shielding
Author(s) -
Chen Zongping,
Xu Chuan,
Ma Chaoqun,
Ren Wencai,
Cheng HuiMing
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201204196
Subject(s) - electromagnetic shielding , materials science , emi , graphene , electromagnetic interference , composite material , flexibility (engineering) , composite number , bending , gauge (firearms) , computer science , nanotechnology , telecommunications , mathematics , metallurgy , statistics
A lightweight graphene foam composite with a density of 0.06 g/cm 3 is developed. It shows a EMI shielding effectiveness of 30 dB and specific shielding effectiveness of 500 dB·cm 3 /g, which surpasses the best values of metals and other carbon‐based composites. In addition, the excellent flexibility of this foam composite gives it a stable EMI shielding performance under repeated bending.