State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo 315211, China.
Dalton Trans. 2019 Nov 26;48(46):17163-17168. doi: 10.1039/c9dt03821c.
An amino-functionalized metal-organic framework nanosheet array supported on nickel foam (NH2-Co-MOF-NS/NF) was fabricated and served as a binder-free battery-type electrode, which exhibited maximum areal specific capacities of 6.7 C cm-2 (1861 μA h cm-2) and 2.9 C cm-2 (806 μA h cm-2) in a three-electrode device and in a supercapattery device, respectively. Moreover, the advanced supercapattery device delivered a high energy density of 0.351 mW h cm-2 at a power density of 1.70 mW cm-2, with superior capacity retention of 91.8% after 5000 cycles. This work can provide an efficient strategy to construct amino-functionalized 2D MOF nanosheets for energy storage and conversion.
一种氨基功能化的金属有机骨架纳米片阵列负载在泡沫镍上（NH2-Co-MOF-NS/NF）被制备出来，并作为一种无粘结剂的电池型电极，在三电极器件和超级电容器器件中分别表现出最大的面比容量为 6.7 C cm-2（1861 μA h cm-2）和 2.9 C cm-2（806 μA h cm-2）。此外，先进的超级电容器装置在 1.70 mW cm-2 的功率密度下提供了 0.351 mW h cm-2 的高能量密度，经过 5000 次循环后，容量保持率高达 91.8%。这项工作为构建用于能量存储和转换的氨基功能化二维 MOF 纳米片提供了一种有效的策略。
