Metal–Organic Framework-Derived Carbon/Carbon Nanotubes Mediate Impedance Matching for Strong Microwave Absorption at Fairly Low Temperatures

2021 ◽  
Author(s):  
Jia Wen Fang ◽  
Yuan Ma ◽  
Zhi Yong Zhang ◽  
Bin Ze Yang ◽  
Ye Sheng Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Microwave Absorption ◽  
Low Temperatures ◽  
Metal Organic Framework ◽  
Impedance Matching ◽  
Metal Organic ◽  
Organic Framework

Melamine-induced formation of carbon nanotubes assembly on metal-organic framework-derived Co/C composites for lightweight and broadband microwave absorption

2021 ◽  
Author(s):  
Wei Liu ◽  
Pengtao Duan ◽  
Chao Mei ◽  
Kun Wan ◽  
Bowei Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Microwave Absorption ◽  
Metal Organic Framework ◽  
Filling Ratio ◽  
Complex Structures ◽  
Absorption Bandwidth ◽  
Microwave Absorbing Materials ◽  
Absorbing Materials ◽  
Metal Organic ◽  
Organic Framework

To extend effective absorption bandwidth at low filling ratio is still a challenge for metal-organic framework-derived microwave absorbing materials. Herein, varied complex structures based on CNTs have been built on...

Microwave Absorption Enhancement of Fe/C Core–Shell Hybrid Derived from a Metal-Organic Framework

NANO ◽  
2019 ◽  
Vol 14 (01) ◽  
pp. 1950002 ◽  
Author(s):  
Liuyang Heng ◽  
Zilong Zhang ◽  
Shuai Wang ◽  
Xiqiao Chen ◽  
Xiubo Jia ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Metal Organic Framework ◽  
Impedance Matching ◽  
Absorption Enhancement ◽  
Core Shell ◽  
Multiple Reflections ◽  
Metal Organic ◽  
Absorbing Material ◽  
Microwave Absorbing ◽  
Organic Framework

Core–shell structured Fe/C have been successfully derived from a metal-organic framework for microwave absorbing. Based on the measured electromagnetic parameters, it is found that the maximum reflection loss (RL) of Fe/C reaches [Formula: see text][Formula: see text]dB at 5.8[Formula: see text]GHz with a thickness of 3.0[Formula: see text]mm and the broadest absorption bandwidth ([Formula: see text][Formula: see text]dB) is up to 6.0[Formula: see text]GHz (from 11.2 to 17.2[Formula: see text]GHz) with a thickness of 1.5 mm. The excellent microwave absorption is mainly ascribed to the multiple reflections, good impedance matching, dielectric loss and interface polarization originating from the core–shell structure. It is believed that Fe/C can be a promising microwave absorbing material.

Sign in / Sign up

Export Citation Format

Share Document