Abstract
A novel multiple-phase nanocomposites of core-shell CoNi alloy@C nanoparticles uniformly implanted on graphene conducting network are prepared via combining liquid phase reduction and hydrothermal reaction. The core-shell CoNi alloy@C nanoparticles are uniformly dispersed over graphene nanosheets. The abundant conductive network of reduced graphene oxide is favorable for CoNi alloy@C nanoparticles insertion. Compared to single CoNi alloy and CoNi alloy@C, the ternary CoNi alloy@C/rGO nanocomposites reveal a remarkable increase in microwave absorption. The maximum reflection loss achieves −62.4 dB at 7.84 GHz, and the effective bandwidth of reflection loss below −10 dB (90% attenuation of microwave energy) is up to 14.4 GHz. Meanwhile, through calculation of absorption efficiency, it can be obtained that the nanocomposites have a best absorption performance at 3.3 mm and the efficiency value is 24.88 dB GHz/mm. So this study provides an excellent candidate for military radars, aerospace, electronic instruments and other fields.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Composites Part A: Applied Science and Manufacturing
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
