Fig. 6: Electrochemical performance of proton pseudocapacitors.
From: Discovery of fast and stable proton storage in bulk hexagonal molybdenum oxide
a Schematic diagram of the full proton pseudocapacitor device. b CV curves at various scan rates. c Specific capacitance at different scan rates. d GCD curves at different current densities. e Comparison of energy and power density. f Capacitance retention at 10 A g−1.
