Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 11, Pages 9369-9378Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b18324
Keywords
hybrid nanorings; catalytic chemical vapor deposition; iron oxide; carbon overcoat; microwave absorption
Funding
- Fundamental Research Funds for the Chinese Central Universities [ZYGX2016J139]
- Science and Technology Support Program of Sichuan Province [2016RZ0054]
- China Postdoctoral Science Foundation [2015M582539]
- National Hi-Tech Research and Development Program (863 Program) of China [2015AA034202]
Ask authors/readers for more resources
Microwave absorption is a critical challenge with progression in electronics, where fine structural designing of absorbent materials plays an effective role in optimizing their microwave absorption properties. Here, we have developed Fe3O4@C (FC) and Fe-Fe3O4@C (FFC) hybrid nanorings via a hydrothermal method coupled with a chemical catalytic vapor deposition technique. FC and FFC hybrid nanorings have fine carbon coating while their size can easily be tunable in a certain range from 80-130 to 90-140 nm. The optimized FC and FFC hybrid nanorings bear minimum reflection loss (RL) values of -39.1 dB at 15.9 GHz and -32.9 dB at 17.1 GHz, respectively, whereas FFC shows an effective absorption bandwidth (RL values < -10 dB) ranged from 5.2 to 18 GHz. Such an enhanced microwave absorption performance of hybrid nanorings is mainly due to the suitable impedance characteristics, multilevel interfaces, and polarization features in nanorings. This work provides an approach to design hybrid materials having a complex structure to enhance the microwave absorption properties.
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