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首页> 外文期刊>RSC Advances >Enhanced electrochemical properties of cerium metal–organic framework based composite electrodes for high-performance supercapacitor application
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Enhanced electrochemical properties of cerium metal–organic framework based composite electrodes for high-performance supercapacitor application

机译：基于铈金属-有机骨架的复合电极的电化学性能增强，可用于高性能超级电容器

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Cerium metal–organic framework based composites (Ce-MOF/GO and Ce-MOF/CNT) were synthesized by a wet chemical route and characterized with different techniques to characterize their crystal nature, morphology, functional groups, and porosity. The obtained Ce-MOF in the composites exhibit a nanorod structure with a size of ～150 nm. The electrochemical performance of the composites was investigated in 3 M KOH and 3 M KOH + 0.2 M K3Fe(CN)6 electrolytes. Enhanced electrochemical behavior was obtained for the Ce-MOF/GO composite in both electrolytes and exhibited a maximum specific capacitance of 2221.2 F g?1 with an energy density of 111.05 W h kg?1 at a current density of 1 A g?1. The large mesoporous structure and the presence of oxygen functional groups in Ce-MOF/GO could facilitate ion transport in the electrode/electrolyte interface, and the results suggested that the Ce-MOF/GO composite could be used as a high-performance supercapacitor electrode material.
机译：基于铈金属-有机骨架的复合材料（Ce-MOF / GO和Ce-MOF / CNT）是通过湿化学路线合成的，并使用不同的技术对其特征进行表征，以表征其晶体性质，形态，官能团和孔隙率。在复合材料中获得的Ce-MOF具有纳米棒结构，尺寸约为150 nm。在3 M KOH和3 M KOH + 0.2 MK 3 Fe（CN） 6 < / small>电解质。两种电解质中Ce-MOF / GO复合材料的电化学行为均得到增强，最大比电容为2221.2 F g ？1 ，能量密度为111.05 W h kg ？1 ，电流密度为1 A g ？1 。 Ce-MOF / GO中较大的介孔结构和氧官能团的存在可以促进离子在电极/电解质界面中的迁移，结果表明，Ce-MOF / GO复合材料可以用作高性能超级电容器电极材料。

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