Microwave absorption and magnetic properties of Ni-NiO-GO nanocomposites
Source abstract
Abstract
Nanocomposite of Ni-NiO was synthesized using sol–gel technique. To enhance the synergistic effect the as-prepared nanocomposite was incorporated in graphene oxide (GO). Recorded X-ray diffractograms and their Rietveld refinement confirmed the desired crystallographic phase of the nanocomposite. Results and analyses of transmission electron microscopy and Raman spectroscopy established the presence of GO phase in Ni-NiO-GO. Conductivity measurements (J vs E curve) indicate the enhancement of conductivity due to which shielding property is enhanced in Ni-NiO-GO compared to Ni-NiO. Magnetic properties were investigated in detail and analysis of magnetic data showed that majority of the nanoparticles are in ferrimagnetic order state together with a presence of insignificant fraction of ferrimagnetic nanoparticles. Observed magnetic loops were also fitted theoretically. Interestingly, the microwave absorption suggested that shielding property was enhanced as a whole compared to Ni-NiO which is quite interesting for applications in shielding devices.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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