Metal–Organic Frameworks and Their Derived Functional Materials for Supercapacitor Electrode Application

Abstract

Metal-organic frameworks (MOFs) are deemed an attractive type of active material during electrochemical reaction processes because of their unique compositional and structural superiority, as well as the dual role as both templates and precursors to derive a large variety of functional materials for energy conversation and storage. Herein, reviewing the recent advances of MOFs and their derived functional materials as electrode materials in supercapacitors, which are classified into pristine MOFs, MOF composites, and MOF-derived functional materials, is focused on. Their synthetic routes and modification strategies are summarized and the relationship between the diversity of the architectures and compositions of MOF-based materials and their electrochemical performance is discussed. In addition, the challenges and opportunities on future research and extensive applications of MOFs and their derived functional materials are offered.

Modification Strategies of Layered Double Hydroxides for Superior Supercapacitors

“…Among these devices, supercapacitors (SCs) have been recognized as a promising alternative because of its high power density and energy density, fast charge, and discharge rates, and outstanding cycling performance. [ 23,24 ]…”

“…Among these devices, supercapacitors (SCs) have been recognized as a promising alternative because of its high power density and energy density, fast charge, and discharge rates, and outstanding cycling performance. [23,24] Normally, SCs have been divided into two categories according to the electrochemical mechanism, including the electrical double-layer capacitor (EDLC) and pseudo capacitor. [25] EDLC stores energy via the electrostatic accumulation of charge on the surface of electrodes, [26] and the most representative EDLC electrode is carbon-based material, which always provide high conductivity and excellent specific surface area, such as graphene, activated carbon, porous carbon, carbon nanotubes.…”

Hierarchical3Dmicro‐nanostructures based on in situ deposited bimetallic metal‐organic structures on carbon fabric for supercapacitor applications

“…To date, the rapid increase in demand for energy storage in commercial electronics and hybrid electric vehicles has required high‐efficiency and high energy storage systems 2,3 . So, the evolution of new and high‐efficiency energy storage appliances is urgently needed to solve the current energy crisis and meet the higher demands of future systems 2‐4 . In fact, supercapacitors and lithium‐ion batteries have received a lot of attention for their excellent performance and are also the main subjects of research and development 4‐6 .…”

“…2,3 So, the evolution of new and high-efficiency energy storage appliances is urgently needed to solve the current energy crisis and meet the higher demands of future systems. [2][3][4] In fact, supercapacitors and lithium-ion batteries have received a lot of attention for their excellent performance and are also the main subjects of research and development. [4][5][6] Among the various electrode materials, metal oxides including Ni(OH) 2 , 7 NiO, 8 ZnO, 9 V 2 O 5 , 10,11 and MnO 2 , 12 metalorganic frameworks (MOFs) [13][14][15] and MOF-derived metal oxides 16 and other heterostructure based materials have received much attention due to its higher theoretical capacity and abundant redox responses.…”

“…[2][3][4] In fact, supercapacitors and lithium-ion batteries have received a lot of attention for their excellent performance and are also the main subjects of research and development. [4][5][6] Among the various electrode materials, metal oxides including Ni(OH) 2 , 7 NiO, 8 ZnO, 9 V 2 O 5 , 10,11 and MnO 2 , 12 metalorganic frameworks (MOFs) [13][14][15] and MOF-derived metal oxides 16 and other heterostructure based materials have received much attention due to its higher theoretical capacity and abundant redox responses. Especially, MOF has emerged as one of the most advantageous materials due to many important properties such as high porosity, ease of manufacture, environmental affability, and low cost.…”