Fig. 3: Electrochemical performance of the SnO2 nanocrystals with exposed {221} facets anchored on graphene (negative electrode) in half-cells. | NPG Asia Materials

Fig. 3: Electrochemical performance of the SnO2 nanocrystals with exposed {221} facets anchored on graphene (negative electrode) in half-cells.

From: Exposed high-energy facets in ultradispersed sub-10 nm SnO2 nanocrystals anchored on graphene for pseudocapacitive sodium storage and high-performance quasi-solid-state sodium-ion capacitors

Fig. 3

a GCD curves. b The corresponding specific capacitances at various current densities. c CV curves and d the Lg (anodic currents) vs. Lg (sweep rates). e Separation of the capacitive (green) and diffusion currents in SnO2/graphene at a sweep rate of 10 mV s–1. f Normalized contribution ratios of the capacitive (green) and diffusion-controlled (gray) capacitances at different sweep rates

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