Preparation of three-dimensional ordered mesoporous carbon sphere arrays by a two-step templating route and their application for supercapacitors

2009 ◽  
Vol 19 (22) ◽  
pp. 3661 ◽  
Author(s):  
Hai-Jing Liu ◽  
Wang-Jun Cui ◽  
Ling-Hua Jin ◽  
Cong-Xiao Wang ◽  
Yong-Yao Xia
2019 ◽  
Vol 54 (21) ◽  
pp. 13674-13684 ◽  
Author(s):  
Zidengya Jiang ◽  
Xin Xi ◽  
Shi Qiu ◽  
Dongqing Wu ◽  
Wei Tang ◽  
...  

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yan Song ◽  
Fuxing Yin ◽  
Chengwei Zhang ◽  
Weibing Guo ◽  
Liying Han ◽  
...  

AbstractCurrently, electromagnetic radiation and interference have a significant effect on the operation of electronic devices and human health systems. Thus, developing excellent microwave absorbers have a huge significance in the material research field. Herein, a kind of ultrafine zinc oxide (ZnO) nanoparticles (NPs) supported on three-dimensional (3D) ordered mesoporous carbon spheres (ZnO/OMCS) is prepared from silica inverse opal by using phenolic resol precursor as carbon source. The prepared lightweight ZnO/OMCS nanocomposites exhibit 3D ordered carbon sphere array and highly dispersed ultrafine ZnO NPs on the mesoporous cell walls of carbon spheres. ZnO/OMCS-30 shows microwave absorbing ability with a strong absorption (− 39.3 dB at 10.4 GHz with a small thickness of 2 mm) and a broad effective absorption bandwidth (9.1 GHz). The outstanding microwave absorbing ability benefits to the well-dispersed ultrafine ZnO NPs and the 3D ordered mesoporous carbon spheres structure. This work opened up a unique way for developing lightweight and high-efficient carbon-based microwave absorbing materials.


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