Ultrasound-assisted sonochemical synthesis of M2P2O7 (M = Co, Mn) nanomaterials: Enhanced structural morphology and ionic conduction mechanism

Abstract

This study aimed to provide insight into how ultrasonic treatment affects microstructure, electrical properties, and physicochemical characteristics. Sonochemical ultrasound synthesis offers a distinct advantage over traditional methods by creating precise reaction conditions through acoustic cavitation. This process induces high temperatures and pressures in a liquid environment, facilitating the synthesis of materials with specific structures, sizes, and properties. In response to this capability, we developed low-cost M₂P₂O₇ (M = Co, Mn) phosphate materials known as CoP and MnP. The samples were analysed for their crystalline structure, surface morphology, and elemental composition via X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM).

The electrochemical performance of the samples was assessed via complex impedance spectroscopy methods. The results demonstrate that the samples exhibit excellent semiconductor behavior, indicating their potential for use in energy and catalytic applications.