TY - JOUR
T1 - Impedance optimization by inserting of flaky Fe3O4/FeS in PANI-derived amorphous carbon for wide band electromagnetic protection
AU - Zhang, Tao
AU - Zhang, Limin
AU - Yin, Pengfei
AU - Zhang, Yi
AU - Sun, Xiyuan
AU - Wang, Jian
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - To against the excessive electromagnetic radiation in the current situation, herein the PANI-derived carbon block with flaky Fe3O4/FeS inserted was obtained via a facile route of co-chemical precipitation, low temperature polymerization and vacuum calcination. It discovers that the component of composites and disordered structures in carbon can be regulated by changing the additive amount of iron oxide, and hence the modified electromagnetic parameters to optimize the impedance matching between free air and composites can be achieved as well. On this basis, by optimizing the coupled effect of intrinsic polarizations, conductive dissipation, magnetic resonance and eddy current wastage, the PDC/Fe3O4/FeS composite realizes the efficient microwave absorption within a broad range of 6.55 GHz, covering the entire Ku band for only 2.2 mm thickness of absorber. The work offers a flexible strategy to synthesize desired candidate for broadband electromagnetic protection.
AB - To against the excessive electromagnetic radiation in the current situation, herein the PANI-derived carbon block with flaky Fe3O4/FeS inserted was obtained via a facile route of co-chemical precipitation, low temperature polymerization and vacuum calcination. It discovers that the component of composites and disordered structures in carbon can be regulated by changing the additive amount of iron oxide, and hence the modified electromagnetic parameters to optimize the impedance matching between free air and composites can be achieved as well. On this basis, by optimizing the coupled effect of intrinsic polarizations, conductive dissipation, magnetic resonance and eddy current wastage, the PDC/Fe3O4/FeS composite realizes the efficient microwave absorption within a broad range of 6.55 GHz, covering the entire Ku band for only 2.2 mm thickness of absorber. The work offers a flexible strategy to synthesize desired candidate for broadband electromagnetic protection.
KW - Electromagnetic protection
KW - Flaky FeO/FeS
KW - Impedance optimization
KW - Microwave absorption
KW - PANI-Derived carbon
UR - http://www.scopus.com/inward/record.url?scp=85165544738&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2023.128230
DO - 10.1016/j.matchemphys.2023.128230
M3 - 文章
AN - SCOPUS:85165544738
SN - 0254-0584
VL - 307
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 128230
ER -