Unlocking the potential of a MOF-derived CaMoO4 electrode for high performance supercapacitor application

Abstract

This manuscript presents a novel method to enhance the electrochemical performance of CaMoO₄ for supercapacitors by synthesizing it from a bi-metallic metal–organic framework (MOF). The resulting CaMoO₄ nanoparticles retain MOF characteristics, with a high surface area, and demonstrate improved performance over conventionally synthesized CaMoO₄. Electrochemical tests showed the MOF-derived CaMoO₄ achieved a high capacitance of 377.82 F g⁻¹ at 1 A g⁻¹ and retained 91% of its capacitance after 5000 cycles. The assembled asymmetric supercapacitor also retained 88% of its capacitance after 10 000 cycles, highlighting the potential of this approach for enhancing energy storage devices.