Micro-wave synthesis of MnO2 for high-performance supercapacitor application

Title : Micro-wave synthesis of MnO2 for high-performance supercapacitor application

Abstract:

This thesis aims to improve the electrochemical performance of pseudocapacitive materials such as MnO2, for use as active materials in supercapacitors. Manganese dioxide was produced using two processes, hydrothermal and microwave, in order to obtain different structures. A significant influence of the synthesis method on the morphology and performance of the manganese dioxides was observed. The specific capacity was calculated at 445 F.g-1 for MnO2-HT (hydrothermal synthesis) and 577 F.g-1 for MnO2-MO (microwave synthesis). In addition, after 1000 charge-discharge cycles, a loss of 15.7% compared with the initial specific capacity was observed for MnO2-MO, indicating good electrochemical stability. Microwave synthesis therefore enabled a material with attractive electrochemical properties to be obtained, with a considerable saving in synthesis time. 
Keywords: Supercapacitors, pseudocapacitors, manganese dioxide (MnO2), hydrothermal, microwave, electrode, electrochemical performance.

Biography:

Dr. Makhloufi Mohamed Cherif studied Chemical Sciences at Boumerdes University, Algeria. He pursued his doctoral research at the same institution and received his PhD degree in 2024. His research focuses on nanoparticle synthesis for catalysis and supercapacitor applications. He has contributed to many scientific publications and continue to advance research in his field.