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Preparation and microwave-infrared absorption of reduced graphene oxide/Cu–Ni $ferrite/Al_{2}O_{3}$ composites
| Content Provider | Scilit |
|---|---|
| Author | De-Yue, Ma Xiao-Xia, Li Yu-Xiang, Guo Yu-Run, Zeng |
| Copyright Year | 2018 |
| Description | Journal: Materials Research Express Reduced graphene oxide/Cu-Ni ferrite/Al2O3 composite was prepared by solvothermal method, and its properties were characterized by SEM, XRD, EDX and FTIR. The electromagnetic parameters in 2~18 GHz and mid-infrared spectral transmittance of the composite were measured, respectively. The results show that Cu0.7Ni0.3Fe2O4 nanoparticles with an average size of tens nanometers adsorb on surface of reduced graphene oxide, and meanwhile, Al2O3 nanoparticles adhere to the surface of Cu0.7Ni0.3Fe2O4 nanoparticles and reduced graphene oxide. The composite has both dielectric and magnetic loss mechanism. Its reflection loss is lower than -19 dB in 2~18 GHz, and the maximum of -23.2 dB occurs at 15.6 GHz. With the increasing of Al2O3 amount, its reflection loss becomes lower and the maximum moves towards low frequency slightly. Compared with reduced graphene oxide/Cu-Ni ferrite composites, its magnetic loss and reflection loss slightly reduce with the increasing of Al2O3 amount, and the maximum of reflection loss shifts from a low frequency to a high one. However, its broadband IR absorption is significantly enhanced owing to nano-Al2O3. Therefore, reduced graphene oxide/Cu-Ni ferrite/Al2O3 composites can be used as excellent broadband microwave and IR absorbing materials, and maybe have broad application prospect in electromagnetic shielding, infrared absorbing and coating materials. |
| Related Links | http://iopscience.iop.org/article/10.1088/2053-1591/aaa4ef/pdf |
| ISSN | 20531591 |
| e-ISSN | 20531591 |
| DOI | 10.1088/2053-1591/aaa4ef |
| Journal | Materials Research Express |
| Issue Number | 1 |
| Volume Number | 5 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Materials Research Express Condensed Matter Physics Reduced Graphene Oxide Graphene Oxide/cu Ni |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics |
