APPLICATION OF GRAPHENE DERIVATIVES IN BATTERIES AND PERMANENT MAGNETS
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Abstract
The aim of this work was to study the application of graphene-based compounds and the synthesis and characterization of graphene oxide (GO) and reduced graphene oxide (rGO) and their applications in batteries and, neodymium-iron-boron permanent magnets. X-ray diffraction results showed the presence of one peak at approximately 2θ = 11°, which corresponds to the set of GO planes in (002). The results of the applications are: the negative electrode of Battery2 with 1% addition of GO presented a discharge capacity of 397.03 mAh/g and a greater cyclic stability during 30 cycles. In the case of magnet2, the sample containing 0.1 wt.% rGO, showed the highest values of Br = 10.42 T, BHmax = 21.19 MGOe, ρ = 7135 kg m-3 and SQ = 0.63.
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