Facile synthesis and electrochemical characterization of novel metal oxide/Philippine natural zeolite (MOPNZ) nanocomposites

Herein, we report the formation of novel metal oxide nanostructures of copper and iron on Philippine natural zeolite (PNZ) matrix and their application as an electrode for supercapacitors for the first time. Flake-like and aggregated protruding nanoarchitectures were generated after calcination process of Cu-and Fe-exchanged PNZ samples, respectively. The successful inclusion of Cu and Fe were verified through comprehensive characterizations such as SEM-EDX, XRF, XRD, FTIR and XPS analyses. XRD and XPS analyses confirmed the presence of metal oxides species on the PNZ matrix. Electrochemical charac-terizations revealed the pseudocapacitance behaviour of both samples. These results highlight the poten-tial of metal oxide/PNZ composites as novel electrodes for energy storage devices. (c) 2021 Published by Elsevier B.V.

Automated summary

This study reported the formation of novel metal oxide nanostructures of copper and iron on Philippine natural zeolite (PNZ) matrix for the first time, and their application as an electrode for supercapacitors. Comprehensive characterizations confirmed the successful inclusion of Cu and Fe, and highlighted the potential of metal oxide/PNZ composites as novel electrodes for energy storage devices.