In this paper, novel reduced graphene oxide (rGO) composites (DAPrGOs) modified by diaminopyrene (DAP) were successfully synthesized a facile solvothermal reaction method and used for supercapacitors. Compared with the pristine rGO, the DAPrGO1 electrode showed distinctly better performance (397.63 F g 80.29 F g of pristine rGO at 0.5 A g) with small charge transfer resistance. When a symmetric device was fabricated using DAPrGO1 as the active material, it also exhibited a high capacitance of 82.70 F g at 0.5 A g with an energy density of 25.84 W h kg at a power density of 375 W kg, and even offered a high power density of 7500 W kg (18.71 W h kg) at 10 A g. Moreover, the device possessed good electrochemical stability up to 20 000 cycles, implying promising applications in energy storage fields.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047509 | PMC |
| http://dx.doi.org/10.1039/c9ra10429a | DOI Listing |
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