Corrosion-Resistant Graphene-Based Magnetic Composite Foams for Efficient Electromagnetic Absorption

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Corrosion-Resistant Graphene-Based Magnetic Composite Foams for Efficient Electromagnetic Absorption
Title:
Corrosion-Resistant Graphene-Based Magnetic Composite Foams for Efficient Electromagnetic Absorption
Other Titles:
ACS Applied Materials & Interfaces
Publication Date:
08 February 2022
Citation:
Li, S., Tang, X., Zhang, Y., Lan, Q., Hu, Z., Li, L., Zhang, N., Ma, P., Dong, W., Tjiu, W., Wang, Z., & Liu, T. (2022). Corrosion-Resistant Graphene-Based Magnetic Composite Foams for Efficient Electromagnetic Absorption. ACS Applied Materials & Interfaces, 14(6), 8297–8310. https://doi.org/10.1021/acsami.1c23439
Abstract:
Designing and fabricating high-performance microwave absorption materials with efficient electromagnetic absorption and corrosion resistance becomes a serious and urgent concern. Herein, novel corrosion-resistant graphene-based carboncoated iron (Fe@C) magnetic composite foam is fabricated via self-assembly of iron phthalocyanine/Fe3O4 (FePc hybrid) on the graphene skeletons under solvothermal conditions and then annealing at high temperature. As a result, the rational construction of a hierarchical impedance gradient between graphene skeletons and Fe@C particles can facilitate the optimization in impedance matching and attenuation characteristic of the foam, realizing the efficient dissipation for incident electromagnetic waves. Additionally, the performance of electromagnetic absorption can be controllably regulated by optimizing annealing temperature and/or time. More importantly, the formation of a carbon-coated iron structure substantially improves the corrosion resistance of magnetic particles, endowing the composite foam with excellent stability and durability in microwave absorption performance.
License type:
Publisher Copyright
Funding Info:
This work is supported by the National Natural Science Foundation of China (52003106 and 21674019), China Postdoctoral Science Foundation (2021M691265), Fundamental Research Funds for the Central Universities (2232019A3-03 and JUSRP12032), Ministry of Education of the People’s Republic of China (6141A0202202), and Shanghai Scientific and Technological Innovation Project (18JC1410600).
Description:
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.1c23439
ISSN:
1944-8252
1944-8244
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