Journal
ENERGY STORAGE MATERIALS
Volume 14, Issue -, Pages 230-237Publisher
ELSEVIER
DOI: 10.1016/j.ensm.2018.04.004
Keywords
Plasma; Graphene; Flexible; Solid-state; Supercapacitor
Funding
- National Science Foundation [1700785, 1700787]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1700787, 1700785] Funding Source: National Science Foundation
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Flexible solid-state supercapacitors featuring lightweight and large capacitance have many attractive applications in portable and wearable electronics. Nitrogen-doped graphene is a promising electrodes material due to the extraordinary properties of graphene. This study demonstrates a magnetically enhanced dielectric barrier discharge that has the potential to efficiently exfoliate polyaniline-modified graphene at low input power. The plasma exfoliated N-doped graphene is subsequently used to fabricate flexible solid-state supercapacitors, which exhibit large specific capacitance of 45 mF/cm(2) at 0.2 A cm(-2) charging rate, similar to 100% capacitance retention after 1000 charge/discharge cycles at different current densities, and outstanding mechanical flexibility. The magnetically enhanced plasma exfoliation of graphite oxide offers a potentially cost-effective approach to producing high-quality carbon nanomaterials for energy storage.
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