Enhancing zinc-ion energy storage: impact of MOF-5 derived carbonization temperature on performance

Abstract

We report the carbonization of metal–organic framework-5 (MOF-5) at various temperatures to investigate the correlation between physicochemical properties and electrochemical performance in zinc-ion energy storage. The sample carbonized at 1000 °C exhibits the highest specific capacitance (268.93 F g⁻¹), energy density (166.9 W h kg⁻¹), and power density (9234 W kg⁻¹), attributed to increased porosity, enhanced graphitization, and reduced charge transfer resistance. This simultaneous achievement of high energy and power densities underscores the potential of carbonized MOF-5 (CMOF-5) as a high-performance nanostructured electrode material for advanced energy storage devices.