A Hierarchical Multimetal Oxides@Graphene Fabric Electrode with High Energy Density and Robust Cycling Performance for Flexible Supercapacitors.

ABSTRACT: An advanced structure capable of hosting large electrochemical activity with desired balance in ion diffusion kinetics, faradic charge storage, and robust stability is the key to developing high-performance fabric-based electrochemical supercapacitors (FSCs). Herein, we develop a hierarchical multimetal oxides@graphene fabric (Cu-MO@GFF) as a supercapacitor electrode with accelerated ionic diffusion, adsorption energy, faradic redox reaction kinetics, and electrochemical reversibility. As a result, the Cu-MO@GFF presents excellent mass capacitance (534 F g^-1), high rate performance (266 F g^-1 at 10 A g^-1), and good cycle performance (96.9% capacitive retention after 20,000 cycles) in 6 mol L^-1 (M) KOH electrolyte. In addition, the Cu-MO@GFF-based

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11926955 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature