SiC–Fe3O4 dielectric–magnetic hybrid nanowires: controllable fabrication, characterization and electromagnetic wave absorption
文献情報
Caiyun Liang, Chenyu Liu, Huan Wang, Lina Wu, Zhaohua Jiang, Yongjun Xu, Baozhong Shen, Zhijiang Wang
Controllable dielectric–magnetic coaxial hybrid nanowires, having a core of SiC nanowires and a shell of Fe3O4 nanoparticles, have been synthesized using a straightforward polyol approach. The morphology, microstructure and magnetic properties of the SiC–Fe3O4 hybrid nanowires have been characterized by transmission electron microscope, powder X-ray diffractometer and vibrating sample magnetometer. The characterization confirms that monodisperse Fe3O4 nanoparticles of core size 10 nm have been successfully coated on the surface of SiC nanowires. The coverage density of the nanoparticles may be adjusted simply by changing the weight ratio of the precursors. Measurement of the electromagnetic (EM) parameters indicates that the Fe3O4 nanoparticles increase the magnetic loss and improve the impedance matching conditions compared to untreated SiC nanowires. When the coverage density of Fe3O4 is optimal, the reflection loss of an EM wave can be as low as −51 dB. By changing the loading density of Fe3O4, the best microwave absorption state was obtained in the 2–18 GHz band. These results suggest that SiC–Fe3O4 hybrid nanowires will be valuable in EM absorption applications.
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Journal of Materials Chemistry A

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment














