MOP-18-Derived CuO Fiber for Hybrid Supercapacitor Electrodes.

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Hybrid supercapacitors offer enhanced performance by combining different electrode materials.
• Developing cost-effective and simple fabrication methods is crucial for widespread supercapacitor adoption.

Purpose of the Study:

• To explore a simple and cost-effective method for fabricating hybrid supercapacitor electrodes.
• To investigate the electrochemical performance of a novel C/CuO composite electrode material.

Main Methods:

• Electrospinning of Matrimid/Metal-Organic Polyhedra 18 (MOP-18) followed by low-temperature air carbonization.
• Fabrication of free-standing, redox-active electrodes without stabilization or activation steps.
• Electrochemical characterization using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy.

Main Results:

• The synthesized C/CuO composite electrode exhibited a specific capacitance of up to 206 F/g.
• Supercapacitors demonstrated an energy density of 10.3 Wh/kg at a current density of 1 A/g.
• The fabrication method proved to be simple, cost-effective, and scalable.

Conclusions:

• The developed method provides a facile route to produce high-performance hybrid supercapacitor electrodes.
• The C/CuO composite material shows significant potential for advanced energy storage applications.
• The cost-effectiveness and efficiency of the fabrication process open new avenues for supercapacitor technology.