FOLLOWUS
a.China Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
b.College of New Energy, Xi’an Shiyou University, Xi’an 710065, China
c.Xi’an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
huangwenhuan@sust.edu.cn
Published:01 July 2024,
Published Online:16 April 2024,
Received:19 January 2024,
Revised:07 February 2024,
Accepted:2024-02-27
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Kang, Y. F.; Tang, J. L.; Song, M.; Wang, W.; Ma, J. C.; Ji, Z. Y.; Liu, T.; Huang, W. H. Electrostatic encapsulation of cobalt ions into crystalline framework derived polymer aerogel: ultra-light, pressure resistant, hydrophobic, photothermal conversion, heat insulation and infrared stealth. Chinese J. Polym. Sci. 2024, 42, 946–957
YI-FAN KANG, JIN-LU TANG, MING SONG, et al. Electrostatic Encapsulation of Cobalt Ions into Crystalline Framework Derived Polymer Aerogel: Ultra-light, Pressure Resistant, Hydrophobic, Photothermal Conversion, Heat Insulation and Infrared Stealth. [J]. Chinese journal of polymer science, 2024, 42(7): 946-957.
Kang, Y. F.; Tang, J. L.; Song, M.; Wang, W.; Ma, J. C.; Ji, Z. Y.; Liu, T.; Huang, W. H. Electrostatic encapsulation of cobalt ions into crystalline framework derived polymer aerogel: ultra-light, pressure resistant, hydrophobic, photothermal conversion, heat insulation and infrared stealth. Chinese J. Polym. Sci. 2024, 42, 946–957 DOI: 10.1007/s10118-024-3111-y.
YI-FAN KANG, JIN-LU TANG, MING SONG, et al. Electrostatic Encapsulation of Cobalt Ions into Crystalline Framework Derived Polymer Aerogel: Ultra-light, Pressure Resistant, Hydrophobic, Photothermal Conversion, Heat Insulation and Infrared Stealth. [J]. Chinese journal of polymer science, 2024, 42(7): 946-957. DOI: 10.1007/s10118-024-3111-y.
An outstanding electromagnetic wave absorbing material wi
th multiple loss mechanisms was synthesized by incorporating magnetic metal into the anionic crystal framework through electrostatic incorporation. The superior RLmin at a thickness of 2.5 mm is -40.49 dB
and the EAB is 5.36 GHz (RL
<
-10 dB
10.4~15.76GHz). The optimal radar cross section (RCS) reduction of the sample was 34.9 dB·m
2
. Furthermore
Co@CN-4 is embedded into CMC as the precursor of self-assembly to form Co@CN-4 hybrid aerogel (CCHA aerogel)
which integrates various functionalities including ultra-light
pressure resistance
hydrophobicity
photothermal conversion capability
heat insulation performance and infrared stealthiness to cater for practical applications.
A variety of electromagnetic wave absorption materials (EMWAs) have been reported
but the integration of powder materials and multifunctional devices should be investigated in-depth to adapt to practical demands. Herein
carbon-coated cobalt composites were prepared by adsorbing magnetic metal cations into an anionic crystalline framework through an electrostatic encapsulate process. Excellent reflection loss (RL
min
) of −40.49 dB and effective absorption bandwidth (EAB) of 5.36 GHz (RL
<
−10 dB
10.4−15.76 GHz) was achieved with an optimal radar cross section (RCS) reduction of 34.9 dB·m
2
for the sample tested. For commercial applications
Co@CN-4 was integrated into sodium carboxymethyl cellulose (CMC) aerogel to create an ultra-lightweight composite aerogel that is compressive resistant and heat-holding while also having photothermal conversion capabilities.The hydrophobic modification makes it more widely useful. This study provides a new strategy for EWAMs to integrate versatility and improve their application prospects.
Electrostatic incorporationMagnetic nanoparticleCo@CN compositesElectromagnetic wave absorbingMetal-organic framework
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