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Intercalation pseudocapacitance is emerging as a highly promising mechanism for high rate energy storage applications. However, it is still debatable how the alkali metal ion pre-intercalation in layered metal oxides affects the intercalation pseudocapacitance. Herein,the layered birnessite-MnO2 nanoflakes with K+ pre-intercalation were in- situ fabricated on the graphene foam via a one-step facile...
In conventional CMOS charge pump circuits, there are some non-ideal effects such as the clock feedthrough, current mismatch and charge sharing which result in a phase offset in phase-locked loop circuits. This paper presents a new charge pump to reduce the jitter. The proposed and conventional charge pumps are simulated and compared. The circuit is implemented using a 0.35??m mix-signal CMOS process...
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