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Shape-controlled synthesis of MnCO3 nanostructures and their applications in supercapacitors

机译:MnCO3纳米结构的形状控制合成及其在超级电容器中的应用

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MnCO3 nanospheres and nanocubes have been successfully synthesized by a facile precipitation method utilizing ethylene glycol. When these MnCO3 samples were employed as electrodes in the pseudocapacitor with an aqueous NaClO4 electrolyte, they exhibited excellent supercapacitor characteristics. The MnCO3 nanospheres showed a specific capacitance of 129 F g(-1) at 0.15 A g(-1), while the nanocube electrode had a specific capacitance of 91 F g(-1) at the same current density. The asprepared MnCO3 electrode materials had a high retention of 87% and 92% after 1000 cycles at 0.3 A g(-1), indicating a high-rate electrochemical cycling life. This study has highlighted the promising prospects of MnCO3 as a novel electrode material used for supercapacitors.
机译:MnCO3纳米球和纳米立方体已通过使用乙二醇的简便沉淀法成功合成。当将这些MnCO3样品用作带有NaClO4水溶液的假电容器中的电极时,它们表现出优异的超级电容器特性。 MnCO3纳米球在0.15 A g(-1)下显示的比电容为129 F g(-1),而纳米立方体电极在相同电流密度下的比电容为91 F g(-1)。所制备的MnCO3电极材料在0.3 A g(-1)的1000次循环后具有87%和92%的高保留率,这表明电化学循环寿命很高。这项研究强调了MnCO3作为一种用于超级电容器的新型电极材料的广阔前景。

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