Vozniakovskii, A.A.; Smirnova, E.A.; Apraksin, R.V.; Kidalov, S.V.; Voznyakovskii, A.P. Use of Few-Layer Graphene Synthesized under Conditions of Self-Propagating High-Temperature Synthesis for Supercapacitors Applications. Nanomaterials2023, 13, 2368.
Vozniakovskii, A.A.; Smirnova, E.A.; Apraksin, R.V.; Kidalov, S.V.; Voznyakovskii, A.P. Use of Few-Layer Graphene Synthesized under Conditions of Self-Propagating High-Temperature Synthesis for Supercapacitors Applications. Nanomaterials 2023, 13, 2368.
Vozniakovskii, A.A.; Smirnova, E.A.; Apraksin, R.V.; Kidalov, S.V.; Voznyakovskii, A.P. Use of Few-Layer Graphene Synthesized under Conditions of Self-Propagating High-Temperature Synthesis for Supercapacitors Applications. Nanomaterials2023, 13, 2368.
Vozniakovskii, A.A.; Smirnova, E.A.; Apraksin, R.V.; Kidalov, S.V.; Voznyakovskii, A.P. Use of Few-Layer Graphene Synthesized under Conditions of Self-Propagating High-Temperature Synthesis for Supercapacitors Applications. Nanomaterials 2023, 13, 2368.
Abstract
Graphene nanostructures (GNS) are among the most promising materials for creating supercapacitors. However, GNS are still not used in creating supercapacitors due to the impossibility of obtaining large volumes of high-quality material at an acceptable cost. In this work, we investigated the efficiency of using few-layer graphene (FLG) with the number of layers is not more than 5 synthesized under Self-propagating high-temperature synthesis (SHS) conditions as basic material for supercapacitors. Using the SHS process makes it possible to synthesize large volumes of FLG without Stone-Wales defects. It was found that the synthesized FLG makes it possible to obtain better results than using classical materials, namely activated carbon (AC). It was found that the sample based on FLG has a higher specific capacitance – 65 F×g-1 compared to the sample from AC, the specific capacitance of which is 35 F×g-1, for a speed of 5 mV×s-1 these values are 170 and 64 F×g-1, respectively. The drop in capacitance over 1000 cycles was 4%, which indicates a sufficiently high stability of FLG and allows us to consider FLG as perspective material for use in supercapacitors.
Chemistry and Materials Science, Materials Science and Technology
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