Ni-MOF作为高性能非对称超级电容器正极材料构建NiCe-LDH纳米结构

2020 IEEE 15th International Conference on Nano/Micro Engineered and Molecular System (NEMS) Pub Date : 2020-09-27 DOI:10.1109/NEMS50311.2020.9265587

R. Ramachandran, Changhui Zhao, Zongxiang Xu, Fei Wang

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引用次数: 0

摘要

金属有机骨架衍生物具有结构可控、比表面积大等优点，是超级电容器电极的潜在候选材料。在本研究中，我们首次报道了Ni-MOF在不同合成时间的原位转化NiCe-LDH及其对不对称超级电容器的电化学活性。花朵状的NiCe-LDH/10电极为氧化还原反应提供了额外的活性位点，由于具有更高的表面积和丰富的氧化还原化学性质，NiCe-LDH/10电极的最大比电容达到了1500.6 F -1。所制备的非对称超级电容器器件的最大能量密度为13.86 Wh kg-1，具有良好的循环稳定性。这项工作证明了MOF衍生的LDH材料在电化学超级电容器中的应用潜力。

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Construction Of NiCe-LDH Nanostructure From Ni-MOF As A Positive Electrode Material for High-Performance Asymmetric Supercapacitor Device

Metal-organic framework derivatives are potential candidates for supercapacitors electrodes because of their controllable structure and high surface area. In this study, we report, for the first time, the in-situ conversion of NiCe-LDH from Ni-MOF at different synthesis time and its electrochemical activities towards asymmetric supercapacitor. The flower-like NiCe-LDHs provide extra active sites for redox reactions and achieved a maximum specific capacitance of 1500.6 F g-1 for NiCe-LDH/10 electrode as a result of higher surface area and rich redox chemistry. The fabricated asymmetric supercapacitor device exhibited a maximum energy density of 13.86 Wh kg-1 with superior cyclic stability. This work proves the potential of MOF derived LDH materials for electrochemical supercapacitor applications.

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2020 IEEE 15th International Conference on Nano/Micro Engineered and Molecular System (NEMS)

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