| 초록 |
Different morphology of MnCO3/carbon cloth composites have been synthesized for supercapacitor electrodes through a simple and cost effective hydrothermal approach. The morphology of MnCO3 are controlled by different hydrothermal reaction time, they are petaline (2h), spindle (4h), and tetragon (8h) shape. Among them, MnCO3/carbon cloth (4h) composite displays excellent capacitive properties and rate capability, it shows a relatively high capacitances of 727F/g at 5mV/s and 498F/g at 1A/g respectively, which is mainly ascribed to the distinguished wetability in electrolyte and lowest electric transfer resistance of electrode. The synthetic strategy provides a fine reference for metal carbonate structures and the results indicate that MnCO3/carbon cloth (4h) electrodes can be a promising material for energy storage applications. |
