Metal–organic frameworks (MOFs)-based electrode materials have drawn wide interest in energy storage applications. Herein, a nickel-based metal–organic framework (Ni-MOF) has been synthesized by simple hydrothermal reaction with different reaction times. The hydrothermal reaction time has an impact on the energy storage performance of the synthesized material. Structural characterization confirms the layered structure and purity of the synthesized Ni-MOF. Significantly, improved energy storage performance was found for the Ni-MOF prepared under reaction time 30 h as compared to other reaction times. It exhibits the highest specific capacity of 1498.6 F/g at a current density of 1 A/g along with good rate of capability. This investigation provides useful approach to improve the capacitive performance of MOF-based electrode materials.

基于金属有机框架（MOF）的电极材料在储能应用中引起了广泛的兴趣。在本文中，通过简单的水热反应以不同的反应时间合成了镍基金属有机骨架（Ni-MOF）。水热反应时间对合成材料的储能性能有影响。结构表征证实了合成的Ni-MOF的层状结构和纯度。值得注意的是，与其他反应时间相比，发现在30 h反应时间下制备的Ni-MOF的储能性能得到了改善。在1 A / g的电流密度下，它的最高比容量为1498.6 F / g，并且具有良好的容量率。这项研究为提高基于MOF的电极材料的电容性能提供了有用的方法。