A novel self-supported structure of Ce-UiO-66/TNF in a redox electrolyte with high supercapacitive performance.,Journal of Colloid and Interface Science

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A novel self-supported structure of Ce-UiO-66/TNF in a redox electrolyte with high supercapacitive performance.
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-03-31 , DOI: 10.1016/j.jcis.2020.03.115
Jie Yang ₁ , Leishan Chen ₁ , Weiwei Li ₁ , Gairong Chen ₁ , Lizhen Wang ₂ , Shuai Zhao ₃

Affiliation

A novel self-supported structure of Ce-UiO-66/TNF was firstly synthesized by growing Ce-UiO-66 on a TNF substrate. This novel Ce-UiO-66/TNF material was proved to possess a high supercapacitive performance in the redox electrolyte of Fe(CN)63-/4-, and it was also the first study for Ce-UiO-66 material on the supercapacitor application. High specific capacitances of 6.9 and 2.5 Fcm-2 can be achieved at large current densities of 20 and 80 mAcm-2, respectively. After 10,000 charge-discharge cycles, the capacitance retention can be kept at 95% and the coulomb efficiency can be maintained over 98%. Such outstanding electrochemical performance may be related to the redox property of the electrolyte, high specific surface area of the Ce-UiO-66 material, porous characteristic of the TNF substrate and self-supported structure of the whole electrode.

中文翻译：

具有高超级电容性能的氧化还原电解质中Ce-UiO-66 / TNF的新型自支撑结构。

Ce-UiO-66 / TNF的一种新型自支撑结构是通过在TNF底物上生长Ce-UiO-66来合成的。事实证明，这种新型Ce-UiO-66 / TNF材料在Fe（CN）63- / 4-的氧化还原电解质中具有很高的超级电容性能，也是关于Ce-UiO-66材料在超级电容器上的首次研究。应用。在20和80 mAcm-2的大电流密度下，可以分别实现6.9和2.5 Fcm-2的高比电容。经过10,000次充放电循环，电容保持率可保持在95％，库仑效率可保持在98％以上。这种出色的电化学性能可能与电解质的氧化还原特性，Ce-UiO-66材料的高比表面积，TNF底物的多孔特性以及整个电极的自支撑结构有关。

更新日期：2020-04-01

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