Glycine-Assisted Synthesis of High Surface Area (FeMnCrCoZn)3O4 Microsheets

Abstract

To meet the current demands for energy storage and conversion, it is crucial to develop newly designed materials. Porous metal oxides with a high specific surface area and controllable porosity are promising electrode materials for electrochemical energy storage and conversion applications. Furthermore, porous materials offer a unique combination of structural, chemical and physical properties. In this study, porous high-entropy oxides (FeMnCrCoZn)₃O₄ were synthesized through soft chemistry route, employing glycine as a pore-forming agent, followed by calcination at various temperatures (500 °C, 600 °C and 700 °C) for 4h. The obtained samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. It was observed that the samples were successfully synthesized in porous microsheet morphology and as a single phase in the spinel crystal structure. Additionally, the effect of different calcination temperatures on the pore structure has been investigated.