Evaluation of Power Density: Lead Ion Incorporated into the Network Reduced Graphene Oxide (Pbx:rGO1-x) Composite Electrode
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Pb ion has most often been used in various compounds with carbonaceous materials in a variety of technological applications, such as in batteries and electronics devices. Pb doped reduced graphene oxide was studied using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) techniques. It was found that when the concentration of Pb ions rises, so does the average size of the crystallites. The XRD result revealed the development of atomic layers with preferred reflection plane (111), which leads to a thermal energy gain system of atomic restructuring, increasing crystal size, and reducing crystal defects in the network of the composite material. From the EIS analysis, there is a correlation between a rise in the Pb+ doping concentration in the composite electrodes and a rise in their power density. The composites; rGO, Pb0.4rGO0.6 and Pb0.6rGO0.4 gave respectively the following power densities, 91.49 W/kg, 241.05 W/kg and 361.58 W/kg.
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