Abstract
Aerogels have been considered as a promising electromagnetic interference (EMI) shielding materials due to their lightweight, compressibility, high elasticity and electrical conductivity. In order to improve their EMI shielding effectiveness (EMI SE), developing carbon aerogel with adjustable microstructure is still an urgent problem. Herein, carbon aerogels were fabricated from bamboo cellulose nanofiber (CNF)/graphene oxide (GO) composites with the layered interconnected structure via bidirectional freezing and carbonization. The prepared aerogels exhibited high mechanical strength in the parallel lamellar direction and excellent compression flexibility in the vertical lamellar direction. After 300 cycles of compression in the vertical lamellar direction, 97% of its original height can be recovered. The absolute shielding effectiveness of anisotropic carbon aerogels could achieve 23,628 dB cm2 g−1 with an ultralow density (3 mg cm−3). This study explores the correlation between the structure of carbon aerogels and their EMI shielding properties, offering an eco-friendly approach to produce lightweight anisotropic carbon aerogels for EMI shielding.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
