Bello, Abdulhakeem; Fashedemi, Omobosede O.; Lekitima, Joel N.; Fabiane, Mopeli; Dodoo-Arhin, David; Ozoemena, Kenneth I.; Gogotsi, Yury; Johnson, Alan T. Charlie; Manyala, Ncholu I.
(American Institute of Physics, 2013)
We have fabricated a symmetric electrochemical capacitor with high energy and power
densities based on a composite of graphene foam (GF) with ~80 wt% of manganese oxide
(MnO2) deposited by hydrothermal synthesis. Raman ...