Isomorphism combined with intercalation methods to construct a hybrid electrode material for high-energy storage capacitors

Abstract

High-performance electrode materials were obtained by isomorphism and intercalation methods, resulting in multi-types of redox reaction centers and a bridge for charge transfer.

Cu-MOF derived Cu–C nanocomposites towards high performance electrochemical supercapacitors

“…As a new type of energy storage equipment between traditional capacitors and batteries, supercapacitors have the advantages of high power density, fast charge and discharge, long cycle time and low environmental pollution, thus they have wide application in the elds of spare power systems, portable electronic equipment, information technology and hybrid electric vehicles. [1][2][3][4][5][6][7][8][9][10][11][12][13] However, the low energy density and multiplier performance of supercapacitors restrict their practical application. Therefore, it is important to develop new electrode materials with high electrochemical performance.…”

Advances of Electroactive Metal–Organic Frameworks

“…Moreover, mixed linkers of 2‐methylbenzimidazole, L33, pyromellitic dianhydride, and metal salts of Co(NO 3 ) 2 ·6H 2 O, Ni(NO 3 ) 2 ·6H 2 O forming a CoNi MOF electrode material to exhibit a specific capacitance of 2422.7 F g −1 in a three‐electrode system and values of 82.8 Wh kg −1 at 700 W kg −1 in a fabricated CoNi MOF//AC supercapacitor was reported (Figure 8c). [ 225 ] Another CoNi MOF constructed by H 2 BDC, L1, and Ni(NO 3 ) 2 ·6H 2 O and Co(OH) 2 /carbon fiber paper as an electrode was reported to exhibit a specific capacitance of 1044 F g −1 (Figure 8d). [ 224 ] In the assembled CoNi MOF//AC supercapacitor, a maximum energy density of 28.5 Wh kg −1 at 1500 W kg −1 was obtained.…”

“…c) Reproduced with permission. [ 225 ] Copyright 2019, Royal Society of Chemistry. d) Reproduced with permission.…”

Review of Pristine Metal–Organic Frameworks for Supercapacitors: Recent Progress and Perspectives

“…Sun et al 120 exhibits a high specific capacitance of 2422.7 F g −1 and an excellent capacitance retention rate of 86% after 3000 cycles.…”

“…Sun et al replaced partial Co 2+ in Co-PZM (Co-MOF from 2-methylbenzimidazole and pyromellitic dianhydride, abbreviated as PZM) with Ni 2+ by the isomorphism method and intercalation method to form 3D Ni/Co-MOFs with multiple redox centers. The introduction of 2-methylbenzimidazole in the intercalation of 2D MOF layers accelerates the charge transfer of PZM-based Ni/Co-MOFs.…”