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- W2137400546 abstract "Polymeric materials have been found to be ideal candidates for the synthesis of organic–inorganic nanomaterials. We have obtained Co 3 O 4 ‐decorated graphene oxide (GO) nanocomposites by a simple polymer combustion method. Polyvinyl alcohol (PVA) of two different molecular weights, 14,000 and 125,000, was used for the synthesis. The pristine sample was annealed at 300, 500, and 800°C. PVA has played an important role in the formation of GO and Co 3 O 4 nanoparticles. Synthesized Co 3 O 4 –GO nanocomposites were characterized by X‐ray diffraction, Fourier transform infrared, Raman, electron paramagnetic resonance, transmission electron microscopy, and vibrating sample magnetometry. Reflection peaks at 12° and 37° in an X‐ray study confirm the formation of Co 3 O 4 –GO. Raman study validates the presence of GO in nanocomposites of Co 3 O 4 –GO. Room temperature ferromagnetism was observed in all annealed samples. The highest coercivity of 462 G was observed for 300°C annealed samples as compared with bulk Co 3 O 4 . On the basis of the results obtained, a mechanism of formation is proposed. Copyright © 2015 John Wiley & Sons, Ltd." @default.
- W2137400546 created "2016-06-24" @default.
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- W2137400546 date "2015-06-11" @default.
- W2137400546 modified "2023-10-16" @default.
- W2137400546 title "Role of PVA in synthesis of nano Co<sub>3</sub>O<sub>4</sub>-decorated graphene oxide" @default.
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- W2137400546 doi "https://doi.org/10.1002/pat.3543" @default.
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