Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 14, Pages 12673-12679Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b16144
Keywords
graphene nanosheets; liquid phase exfoliation; NiCo2; single-mode microwave-assisted hydrothermal; permittivity; microwave absorption; reflection loss; quarter-wavelength matching model
Funding
- National Natural Science Foundation of China [51271214, 51102206, 51421091, 51571172, 11404280]
- National Science Fund for Distinguished Young Scholars [51025103]
- Program for New Century Excellent Talents in University [NCET-13-0993]
Ask authors/readers for more resources
Graphene nanosheets (GNSs) were prepared by an efficient liquid-phase,exfoliation method, and then the NiCo2/GNS nanohybrids were fabricated using the-single-mode microwave-assisted hydrothermal- technique. The NiCo2/GNS composites with different GNS proportions were investigated as microwave absorbers. Morphology investigation suggested that NiCo2 nanocrystals were uniformly anchored on the GNS without aggregation. The electromagnetic parameters of NiCo2/GNS nanohybrids could be artificially adjusted by changing the GNS proportion) which led to an exceptional microwave-absorbing performance. A reflection loss (RL) exceeding 20 dB was obtained in the frequency range of 5.3-16.4 GHz for the absorber thicknesses of 1.2-3.2 mm, while an optimal RL of 30 dB was achieved at 11.7 GHz for a thickness of 1.6 mm. The enhanced microwave-absorbing performance indicated that the NiCo2/10 wt % GNS composite has great potential for use as an excellent microwave absorber.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available