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Electrical double layer supercapacitors (EDLC) have an upper limit for their area-normalized capacitance (CA) and lead to a bottleneck that impede the commercialization of high-energy-density supercapacitor devices. Quantum capacitance (CQ) in series with electrical double layer capacitance (CEDL) has been demonstrated to be a tremendous obstacle for enhancing the CA of EDLC. Nitrogen doping can up-shift...
Large area nitrogen (N)-doped graphene films were grown on copper foil by chemical vapor deposition. The as-grown films consisted of a single atomic layer that was continuous across the copper surface steps and grain boundaries, and could be easily transferred to a variety of substrates. N-doping was confirmed by X-ray photoelectron spectroscopy, Raman spectroscopy, and elemental mapping. N atoms...
A simple and scalable method for the synthesis of reduced graphene oxide (RGO) based conductive and magnetic multifunctional films (membranes) is reported. A RGO–iron oxide (Fe 3 O 4 ) freestanding film is fabricated using a versatile chemical route followed by vacuum infiltration. Temperature dependent electronic transport properties of the magnetic GO and RGO films were measured...
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