Graphene-Based Composites for Supercapacitor Electrodes

Study on Direct Synthesis of Energy Efficient Multifunctional Polyaniline–Graphene Oxide Nanocomposite and Its Application in Aqueous Symmetric Supercapacitor Devices

“…It is depicted that PANI assembles on the surface of GO sheets [34]. It seems that DBSA might have played a very effective role in controlling the morphology and uniform growth of the active material on GO [11]. DBSA is also reported to boost the specific capacitance value of the materials [35].…”

“…Graphene oxide or its composites have been effectively applied in energy storage devices [8][9][10]. It has the superiority of high power density, long cycling stability, and quick charge/discharge process [11]. However, due to electrical double layer mechanism, charge storage sites are only constrained to the surface and its bulk cannot be utilized, which results in low active material utilization, low conductivity, and is hampered by its energy density and specific capacitance.…”

Synthesis of multifunctional CuFe2O4–reduced graphene oxide nanocomposite: an efficient magnetically separable catalyst as well as high performance supercapacitor and first-principles calculations of its electronic structures

“…16,24 Electrochemical double layer electrodes (EDL) and pseudocapacitor electrodes are two prominent class of supercapacitor. [25][26][27] Use of EDL electrode in the AIRBUS A380 is one of the examples of the commercial applications of the supercapacitor. 28 However, most of the EDL electrodes suffer from lower energy density than batteries, which oen limits their wide application.…”

Uniformly Dispersed ZnFe2O4 Nanoparticles on Nitrogen-Modified Graphene for High-Performance Supercapacitor as Electrode

“…Compared with the conventional dielectric capacitors and rechargeable batteries, supercapacitors have attracted more considerable attention owning to their high power density, long cycle lifetime and excellent reliability in the fields of energy storage and conversion 7 8 9 10 . In terms of the operational charge storage mechanism, supercapacitors can be classified into pseudocapacitors and electrochemical double layer capacitors (EDLCs) 11 12 13 14 15 . Especially, pseudocapacitors, based on reversible redox reactions between the electrolyte and the electrode bulk, can achieve admirable specific capacitance and energy density, which can be as promising candidate for constructing novel energy storage devices 16 17 18 19 .…”