Hierarchical ZIF-67@NiS grown on nickel foam as a high-performance binder-free electrode for electrochemical capacitors
Abstract
, and excellent cycling stability, retaining 89% of its initial capacitance after 10 000 charge-discharge cycles. Kinetic investigations based on electrochemical impedance spectroscopy showed a low charge-transfer resistance and reduced ion-diffusion resistance, while scan-rate-dependent cyclic voltammetry analysis indicated a dominant capacitive-controlled process with fast redox kinetics. The superior capacitive performance is attributed to the synergistic interaction between ZIF-67 and NiS and the interconnected porous structure of the Ni foam substrate, highlighting the strong potential of ZIF-67@NiS-NiF for high-performance energy storage applications.
Fields of Study & Subjects
Supercapacitor Materials and Fabrication
Advancements in Battery Materials
Metal-Organic Frameworks: Synthesis and Applications
Publication details
- Journal / source
- RSC Advances
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 16
- Issue
- 21
- Pages
- 19499–19510
- Publication date
- 1 January 2026
- Language
- EN