A Cu4 cluster-based MOF as a supercapacitor electrode material with ultrahigh capacitance

A three-dimensional Mn-based MOF as a high-performance supercapacitor electrode

“…17,18 Furthermore, the obvious redox peaks can be ascribed to the transformation of different valence states of manganese, as depicted in eqn ( 4) and ( 5), revealing that the electrode has pseudo-capacitive behavior. Similar behaviors have appeared in many MOF-based electrodes reported, for instance, [Mn(tfbdc)(4,4′-bpy 20 As shown in Fig. 3b, the GCD curves are triangular in shape with considerable deviations, and these curves display apparent potential plateaus, which are also in line with the features of Faraday redox reactions, matching well with the CV profiles.…”

“…11,12 In comparison with the commonly used carbon materials, transition metal oxides and conducting polymers, MOFs present the advantages of high BET specific surface area, tunable pore size and having redox active sites provided by metal ions and organic ligands, hence stimulating more and more research interests in recent years. [13][14][15][16][17][18][19][20][21][22][23][24][25][26] In 2012, Lee et al reported a Co-MOF based electrode material for supercapacitors, delivering a specific capacitance of 206.8 F g −1 . 14 Later, our group has done numerous research studies in this field, and found that some two-dimensional (2D) and three-dimensional (3D) MOFs can be used as electrode materials for supercapacitors, [15][16][17][18][19][20] such as layered Cu-LCP, 15 layered Co-MOFs 16 and layered Mn-MOFs, 17 which, at a current density of 1 A g −1 , exhibited high specific capacitances of 1274, 2474 and 1178 F g −1 , respectively.…”

“…[13][14][15][16][17][18][19][20][21][22][23][24][25][26] In 2012, Lee et al reported a Co-MOF based electrode material for supercapacitors, delivering a specific capacitance of 206.8 F g −1 . 14 Later, our group has done numerous research studies in this field, and found that some two-dimensional (2D) and three-dimensional (3D) MOFs can be used as electrode materials for supercapacitors, [15][16][17][18][19][20] such as layered Cu-LCP, 15 layered Co-MOFs 16 and layered Mn-MOFs, 17 which, at a current density of 1 A g −1 , exhibited high specific capacitances of 1274, 2474 and 1178 F g −1 , respectively. During the same period, Wei's group also demonstrated some 2D MOFs can also exhibit high specific capacitances, for instance, [Ni 3 (OH) 21,22 In 2017, Dinca ˇet al found that a 2D conductive MOF Ni 3 (HITP) 2 as an electrode material for supercapacitors displayed a high areal capacitance.…”

Design and Synthesis of N-Doped Carbon Skeleton Assembled by Carbon Nanotubes and Graphene as a High-Performance Electrode Material for Supercapacitors

“…The Ragone plot in Figure e intuitively exhibits the relationship between them. It can be seen that when the power density is 331 W kg –1 , the maximum energy density of NCS-650//AC can reach 10.3 Wh kg –1 , which is higher than some supercapacitors assembled by MOF-derived carbon materials in previous reports. ,,− The long-term cycling stability of NCS-650//AC is shown in Figure f. When the current density is 5 A g –1 , the capacitance retention rate gradually decreases, but it remains at 88% even after 5000 cycles, manifesting an excellent durability.…”

MOF-derived carbon coated Cu3P with Ni doping as advanced supercapacitor electrode materials

“…Recently, metal-organic framework materials (MOFs) are crystalline porous materials with a cyclical meshwork structure shaped by self-assembly of transition metal ions and organic ligands, mainly consisting of two important components: connectors and linkers. [24][25][26] With a nanoscale skeleton structured pore structure, high specic surface area and low solid density, they have shown excellent performance in adsorption, separation, catalysis and other aspects, and have become an investigation focus and frontier in the area of new materials. [27][28][29][30] The synthetic method of porous transition metal phosphide electrodes with MOFs as the precursor or template has also attracted extensive attention.…”