Coordination polymer template synthesis of hierarchical MnCo2O4.5 and MnNi6O8 nanoparticles for electrochemical capacitors electrode

Porous Cobalt Metal–Organic Frameworks as Active Elements in Battery–Supercapacitor Hybrid Devices

“…For example, the conductivity could be enhanced by compositing MOFs with conducting matrixes such as conductive polymers (PANI and PPy) or carbon-based materials (mesoporous carbon, carbon nanotubes, graphene, etc. ). − As another frustration, conducting materials could cause other issues (i.e., blocking the pores of MOFs, causing aggregation or inhomogeneous compositing), which further hamper ion transportation . Therefore, further increasing their capacities and enhancing their stabilities without impeding the porous features of MOFs is still challenging.…”

Uniform MnCo2O4.5 porous nanowires and quasi-cubes for hybrid supercapacitors with excellent electrochemical performances

“…capacity as the current density was enhanced to 20 times 26. Kuang and coworkers reported the growth of MnCo 2 O 4.5 nanoneedle arrays on nickel foam via hydrothermal route, and a high capacity up to 517.9 C g -1 could be obtained from these MnCo 2 O 4.5 mesoporous nanoneedle structures.…”

Facile Synthesis of Manganese Cobalt Oxide/Nickel Cobalt Oxide Composites for High-Performance Supercapacitors

“…Herein, the core-shell MnCo 2 O 4.5 @NiCo 2 O 4 double spinel structures were successfully synthesized by a facile hydrothermal route without any surfactant, where the core, hierarchical MnCo 2 O 4.5 nanowires with a diameter of 300~500 nm was provided by Li et al (2015). The prepared MnCo 2 O 4.5 @NiCo 2 O 4 hybrids exhibit a promising electrochemical performance via comparing with literature results of selected samples which have similar components and structures (Table 1) (Wu et al, 2011; Kuang et al, 2014; Li et al, 2014, 2015; Hao et al, 2015; Sun et al, 2016; Wang C. et al, 2016; Wang K. et al, 2016). This strategy not only diminishes the dosage of Ni, but also elevates the electrochemical performance of the double spinel composites for ECs, which are favor of the commercial applications for next generation energy storage devices.…”

“…Hence, utilizing Mn to substitute Ni or constructing the Mn-Co-O@Ni-Co-O double spinel composites, should be a feasible and effective method for reducing the cost and promoting its application. Unfortunately, the Mn substituted spinel structure always exhibited the poor specific capacitance (Li et al, 2014, 2015; Hao et al, 2015; Wang K. et al, 2016). Thus, fabricating the Mn-Co-O@Ni-Co-O double spinel composites would be an alternative preferable strategy, which is not only decreasing the commercial applications cost, but also improving the electrochemical performance of double spinel composites for ECs via utilizing the synergistic effect of the core and shell.…”