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Abstract
The recycling of carbon fibers and protection from unwanted microwave radiation are two important environmental issues that need to be addressed in modern society. Herein, branched carbon nanofibers (CNFs) were
grown
in-situ on recycled carbon fibers (RCFs) through the chemical vapor deposition method using nickel as
catalysts and thiophene as aided-catalysts. The effect of thiophene on the growth morphology of CNFs was investigated. Correspondingly, branched CNFs-RCFs and straight CNFs-RCFs were respectively obtained in the presence and absence of thiophene. The microstructure and electromagnetic behaviour investigations have shown
that the branched CNFs possess a typical multi-branched structure, with more defects, pores and a larger specific
surface area than the straight CNFs, which lead to better impedance matching and adequate dielectric loss ability
for the branched CNFs-RCFs. The reflection loss (RL) results show that the branched CNFs-RCFs exhibit an optimum RL of −23.6 dB at 1.5 mm and a best effective absorption bandwidth (EAB) of 7.5 GHz at 2.0 mm. This
research provides an innovative microwave absorbing material with adequate absorbing strength and outstanding
EAB, while also promoting the sustainable reuse of the RCFs resources.
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Cite This Article
APA Style
Liu, L., Pang, S., Luo, Z. (2023). <i>in-situ</i> growing of branched cnfs on reusable rcfs to construct hierarchical cross-linked composite for enhanced microwave absorption. Journal of Renewable Materials, 11(11), 3891-3906. https://doi.org/10.32604/jrm.2023.028192
Vancouver Style
Liu L, Pang S, Luo Z. <i>in-situ</i> growing of branched cnfs on reusable rcfs to construct hierarchical cross-linked composite for enhanced microwave absorption. J Renewable Materials . 2023;11(11):3891-3906 https://doi.org/10.32604/jrm.2023.028192
IEEE Style
L. Liu, S. Pang, and Z. Luo "<i>In-Situ</i> Growing of Branched CNFs on Reusable RCFs to Construct Hierarchical Cross-Linked Composite for Enhanced Microwave Absorption," J. Renewable Materials , vol. 11, no. 11, pp. 3891-3906. 2023. https://doi.org/10.32604/jrm.2023.028192