Enhanced microwave absorbing properties of carbonyl iron-doped Ag/ordered mesoporous carbon nanocomposites

Well-dispersed NiFe2 nanoparticles homogeneously embedded in OMC display high electrochemical biosensing performance for the amperometric detection of H2O2 and glucose.

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Three-Dimensional Ordered Mesoporous Carbon Spheres Modified with Ultrafine Zinc Oxide Nanoparticles for Enhanced Microwave Absorption Properties

Nano-Micro Letters ◽

10.1007/s40820-021-00601-x ◽

2021 ◽

Vol 13 (1) ◽

Author(s):

Yan Song ◽

Fuxing Yin ◽

Chengwei Zhang ◽

Weibing Guo ◽

Liying Han ◽

...

Keyword(s):

Zinc Oxide ◽

Mesoporous Carbon ◽

Three Dimensional ◽

Ordered Mesoporous Carbon ◽

Material Research ◽

Carbon Spheres ◽

Zno Nps ◽

Ordered Mesoporous ◽

High Efficient ◽

Microwave Absorbing

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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Synthesis of magnetic CoFe2O4/ordered mesoporous carbon nanocomposites and application in Fenton-like oxidation of rhodamine B

Environmental Science and Pollution Research ◽

10.1007/s11356-017-8941-5 ◽

2017 ◽

Vol 24 (16) ◽

pp. 14396-14408 ◽

Cited By ~ 28

Author(s):

Jing Deng ◽

Yi-Jing Chen ◽

Yu-An Lu ◽

Xiao-Yan Ma ◽

Shan-Fang Feng ◽

...

Keyword(s):

Rhodamine B ◽

Mesoporous Carbon ◽

Ordered Mesoporous Carbon ◽

Carbon Nanocomposites ◽

Ordered Mesoporous

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Nitrogen-doped graphene-activated metallic nanoparticle-incorporated ordered mesoporous carbon nanocomposites for the hydrogenation of nitroarenes

RSC Advances ◽

10.1039/c8ra00761f ◽

2018 ◽

Vol 8 (16) ◽

pp. 8898-8909 ◽

Cited By ~ 15

Author(s):

Haigen Huang ◽

Xueguang Wang ◽

Yao Sheng ◽

Chenju Chen ◽

Xiujing Zou ◽

...

Keyword(s):

Catalytic Activity ◽

Mesoporous Carbon ◽

Ordered Mesoporous Carbon ◽

Metallic Nanoparticle ◽

Carbon Nanocomposites ◽

Nitrogen Doped ◽

Ordered Mesoporous ◽

Nitrogen Doped Graphene ◽

Doped Graphene

The non-noble M/NGr@OMC-T catalyst exhibits excellent catalytic activity and chemoselectivity for the hydrogenation of nitroarenes to anilines in water with hydrogen.

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Synergistic effect of iron doped ordered mesoporous carbon on adsorption-coupled reduction of hexavalent chromium and the relative mechanism study

Chemical Engineering Journal ◽

10.1016/j.cej.2013.10.104 ◽

2014 ◽

Vol 239 ◽

pp. 114-122 ◽

Cited By ~ 173

Author(s):

Lin Tang ◽

Gui-De Yang ◽

Guang-Ming Zeng ◽

Ye Cai ◽

Si-Si Li ◽

...

Keyword(s):

Synergistic Effect ◽

Hexavalent Chromium ◽

Mesoporous Carbon ◽

Ordered Mesoporous Carbon ◽

Mechanism Study ◽

Ordered Mesoporous ◽

Iron Doped

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Enhanced Microwave Absorption by Incorporating Fe3O4 Nanoparticles into Ordered Mesoporous Carbon

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.2193 ◽

2013 ◽

Vol 634-638 ◽

pp. 2193-2197

Author(s):

Hu Zhou ◽

Jian Dong Zhuang ◽

Qian Liu

Keyword(s):

Microwave Absorption ◽

Mesoporous Carbon ◽

Magnetic Loss ◽

Nitrate Solution ◽

Ordered Mesoporous Carbon ◽

Impedance Match ◽

Ferric Nitrate ◽

Composite Powders ◽

Ordered Mesoporous ◽

Microwave Absorbing

Novel Fe3O4/ordered mesoporous carbon (OMC) composite powders have been prepared by impregnation and reduction methods for the microwave absorbing application purpose. The Fe3O4nanoparticles were encapsulated in the mesopores of OMCs, and Fe3O4contents in the composite could be easily controlled by changing the concentration of ferric nitrate solution during the preparation. The Fe3O4/OMC composites show very excellent microwave absorbing properties with respect to pure OMC samples, in a frequency ranging of 8.2-12.4 GHz. A minimum reflection loss (RL) value of -32 dB at 11.35 GHz and a broader absorption band with the RL values under -10 dB are obtained when the thickness of samples is 1.6 mm. The enhanced microwave absorption of the Fe3O4/OMC nanocomposites is contributed to the better impedance match between dielectric loss and magnetic loss, which originates from the incorporation of magnetic species into OMC.

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