Journal
RSC ADVANCES
Volume 4, Issue 44, Pages 23202-23209Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra00567h
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Funding
- Council of Scientific and Industrial Research (CSIR)
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Copper-nickel alloy nanoparticle decorated natural graphite based hybrid composites have been synthesised by simple reduction chemistry at low temperature (50-90 degrees C) to evaluate their electromagnetic impedance (EMI) shielding effectiveness (SE). The prepared composites were characterized for morphology and structural analysis by scanning electron microscopy, transmission electron microscopy and X-ray diffraction and the obtained results show the uniform covering of Cu nanoparticles on graphite and face centred cubic structure of the alloy. EMI studies were carried out on these composites and they were found to possess SE due to absorption (SEabs) in the range of 10.27 to 25.10 dB, while the reflection, SEref varies from 5.62 to 18.69 dB. Therefore, these hybrid composites can be used for techno-commercial applications and absorbing mobile signal interference because they can exhibit SE in the required range of 30 to 40 dB.
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