1CoFe/C Nanosheets on Hollow Carbon Fibers as Composite Fabrics for Electromagnetic Interference Shielding
Source abstract
Abstract
Electromagnetic interference (EMI) shielding material with good flexibility and lightweight is an effective way to eliminate electromagnetic pollution sources. Herein, lightweight, flexible, and strong CoFe/C/HCF composites with hierarchical pore structures were constructed by in situ growth, etching/ion exchange reaction, and high-temperature pyrolysis using cotton fabric (CF) as the substrate. The Co-MOF nanosheet was in situ grown on the surface of CF, and CoFe-LDH nanosheets were formed after the etching/ion-exchange reaction. CoFe/C/HCF composites with hierarchical pore structures were obtained after high-temperature pyrolysis. The hierarchical pore structure was verified using small-angle neutron scattering analysis. The unique hierarchical pore structure and strong interfacial interaction make the composites have higher average shielding efficiency (SE) and specific shielding efficiency (SSE), when the thickness is only 0.9 mm, which reached 30.7 dB and 109.64 dB·cm3 g–1, respectively. Meanwhile, ultrafast photothermal performance is also achieved, which can ensure the normal function of the composite material in cold conditions. This work provides possibilities for the potential applications of CoFe/C/HCF composites in flexible sensing and wearable smart electronics.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · MXene and MAX Phase Materials · Flame retardant materials and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Advanced Braided Composites, Ministry of Education, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China
College of Science and Engineering, Flinders University, Tonsley, South Australia 5042, Australia
Funding
National Natural Science Foundation of China
References (60)
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