TY - JOUR
T1 - Lightweight and mechanically robust carbon aerogel/SnO2 nanorods composites with heterogeneous structure for electromagnetic interference shielding
AU - Zhao, Hui
AU - Huang, Yinsen
AU - Wang, Xinlong
AU - Han, Yichen
AU - Du, Zhaoxin
AU - Zheng, Yaping
AU - Chen, Lixin
AU - Jin, Liang
N1 - Publisher Copyright:
© 2022
PY - 2022/10
Y1 - 2022/10
N2 - Fabricating lightweight and mechanically robust carbon aerogel (CA) for high-performance electromagnetic interference (EMI) shielding is vital yet challenging. In this work, the heterostructure CA/SnO2 nanorods (NRs) composites are proposed by the fabrication of phenolic-derived CA and followed in-situ growth of nano rod-like SnO2 via ultrasonic cavitation effect. This strategy introduces countless heterogeneous interfaces in the skeleton while maintaining the original porous conductive skeleton of CA, which can synergistically dissipate and absorb electromagnetic waves. The CA/SnO2 NRs composites exhibit the EMI shielding effectiveness (SE) of 36.6 dB with a density of 0.33 g cm−3, of which the absorbed SE reaches 32.1 dB. Besides, CA/SnO2 NRs composites also exhibit prominent mechanical properties, flame retardant properties, and outstanding thermal insulation. Such an especial combination of several exceptional properties capacitates the EMI shielding CA/SnO2 NRs composites to have broad application prospects in fields of aerospace, military, and intelligent electronics.
AB - Fabricating lightweight and mechanically robust carbon aerogel (CA) for high-performance electromagnetic interference (EMI) shielding is vital yet challenging. In this work, the heterostructure CA/SnO2 nanorods (NRs) composites are proposed by the fabrication of phenolic-derived CA and followed in-situ growth of nano rod-like SnO2 via ultrasonic cavitation effect. This strategy introduces countless heterogeneous interfaces in the skeleton while maintaining the original porous conductive skeleton of CA, which can synergistically dissipate and absorb electromagnetic waves. The CA/SnO2 NRs composites exhibit the EMI shielding effectiveness (SE) of 36.6 dB with a density of 0.33 g cm−3, of which the absorbed SE reaches 32.1 dB. Besides, CA/SnO2 NRs composites also exhibit prominent mechanical properties, flame retardant properties, and outstanding thermal insulation. Such an especial combination of several exceptional properties capacitates the EMI shielding CA/SnO2 NRs composites to have broad application prospects in fields of aerospace, military, and intelligent electronics.
KW - A. Multifunctional composites
KW - A. Nano-structures
KW - E. Surface treatments
KW - Electromagnetic interference shielding
UR - http://www.scopus.com/inward/record.url?scp=85134622223&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2022.107077
DO - 10.1016/j.compositesa.2022.107077
M3 - 文章
AN - SCOPUS:85134622223
SN - 1359-835X
VL - 161
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 107077
ER -