Recent advances in metal–organic framework-based electrode materials for supercapacitors

Abstract

Exploring porous electrode materials with designed micro/nano-structures is an effecitve way to realize high-performance supercapacitors (SCs). Metal-organic framework (MOF) is a porous crystalline material with periodic structure formed by coordination...

MOF-derived hierarchical core–shell hollow Co3S4@NiCo2O4 nanosheet arrays for asymmetric supercapacitors

“…1,2 Supercapacitors (SCs), as a kind of efficient and sustainable green energy storage equipment, have been attracting great attention due to their high power density, long cycling life and low maintenance cost. 3 However, the relatively low energy density of SCs is inadequate for modern commercial electrical equipment. The energy density (E) of SCs can be enhanced by improving the working voltage (V) and specific capacitance (C), according to the formula E = 1/2CV 2 .…”

Metal‐Organic‐Framework as Novel Electrode Materials for Hybrid Battery‐Supercapacitor Applications

“…The superior performance of MOF as an electrode material can be attributed to its large surface area, functionality, and its highly tunable porosity. [51][52][53] In contrast to other porous materials, it also offers adjustable and unique structural diversity such as tunable porosity, vast varieties, atomic-level structural uniformity and adjustability in geometry, the topology of the network, and chemical functionality. [54,55] MOF has gained attention due to its low preparation cost, high thermal and chemical stability.…”

“…MOF is nano porous regular crystalline material consisting of a repeated array of metal ions or clusters surrounded by organic linkers as depicted in Figure 3a. The superior performance of MOF as an electrode material can be attributed to its large surface area, functionality, and its highly tunable porosity [51–53] . In contrast to other porous materials, it also offers adjustable and unique structural diversity such as tunable porosity, vast varieties, atomic‐level structural uniformity and adjustability in geometry, the topology of the network, and chemical functionality [54,55] .…”

Efficient Metal‐Oriented Electrodeposition of a Co‐Based Metal‐Organic Framework with Superior Capacitive Performance

“…Metal-organic frameworks (MOFs) are promising supercapacitor electrode materials due to their large surface area, well-defined pore structure and the redox-active metal centers. [1][2][3][4][5] However, the application of MOFs in supercapacitors is largely hindered by their poor electrical conductivity and low exposure of active metal centers. To resolve these problems, directly growing MOFs onto conductive substrates is an effective strategy that imparts fast electron transport as well as avoiding MOF aggregation ensuring high electrochemically active surface area.…”

“…Metal‐organic frameworks (MOFs) are promising supercapacitor electrode materials due to their large surface area, well‐defined pore structure and the redox‐active metal centers [1–5] . However, the application of MOFs in supercapacitors is largely hindered by their poor electrical conductivity and low exposure of active metal centers.…”