Fabrication of ferroferric oxide–carbon/reduced graphene oxide nanocomposites derived from Fe-based metal–organic frameworks for microwave absorption

2020 ◽  
Vol 196 ◽  
pp. 108240 ◽  
Author(s):  
Ruiwen Shu ◽  
Yue Wu ◽  
Weijie Li ◽  
Jiabin Zhang ◽  
Yin Liu ◽  
...  
RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103116-103123 ◽  
Author(s):  
Duoming Wu ◽  
Zhaodong Xu ◽  
Ting Zhang ◽  
Yubo Shao ◽  
Pinxian Xi ◽  
...  

A hybrid heterostructure comprising well-dispersed Cu2O/CuO particles and reduced graphene oxide (rGO) is synthesized by calcinating a mixture of MOFs-118 and GO in nitrogen atmosphere to improve the sensitivity and selectivity of H2O2 sensors.


NANO ◽  
2017 ◽  
Vol 12 (12) ◽  
pp. 1750144 ◽  
Author(s):  
Ruiwen Shu ◽  
Meng Wang ◽  
Yingying Yang ◽  
Siyu Chang ◽  
Gengyuan Zhang ◽  
...  

In this work, reduced graphene oxide (RGO)/ferroferric oxide (RGO/Fe3O4) hybrid composite was successfully fabricated by a facile one-step solvothermal method. The structure, chemical composition, morphology and magnetic properties of the samples were investigated in detail. Fe3O4 microspheres with an average diameter of 250[Formula: see text]nm were uniformly anchored on the surface of the RGO sheets without large aggregation. Moreover, the results demonstrated that the hybrid composite exhibited obviously enhanced microwave absorption properties compared with the pure Fe3O4 microspheres. The minimum reflection loss (RL) of the hybrid composite reached [Formula: see text]36.8[Formula: see text]dB at 17.2[Formula: see text]GHz with a thickness of 5.0[Formula: see text]mm and its effective absorption bandwidth (lower than [Formula: see text]10[Formula: see text]dB) was 3.9[Formula: see text]GHz with a thickness of 2.5[Formula: see text]mm. Significantly, the hybrid composite exhibited a dual-waveband absorption characteristic covering the C and Ku bands. Besides, the relationship between the matching thickness and peak frequency was reasonably explained according to the quarter-wavelength matching theory. Therefore, the obtained composite was a promising candidate for application in microwave absorption.


RSC Advances ◽  
2016 ◽  
Vol 6 (36) ◽  
pp. 30763-30768 ◽  
Author(s):  
Yan Jin ◽  
Chongchong Zhao ◽  
Zixu Sun ◽  
Yichao Lin ◽  
Liang Chen ◽  
...  

Metal organic frameworks (MOFs) and reduced graphene oxide (RGO) composite were used as anode materials in lithium-ion batteries (LIBs).


2019 ◽  
Vol 55 (18) ◽  
pp. 2692-2695 ◽  
Author(s):  
Xinyan Jiao ◽  
Qingli Hao ◽  
Xifeng Xia ◽  
Zongdeng Wu ◽  
Wu Lei

For the first time, M-Nb2O5@C/rGO composites are fabricated by annealing the precursor of GO supported Nb-metal organic frameworks.


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