Preparation and characterization of Mn₅O₈ nanoparticles: A novel and facile pulse cathodic electrodeposition followed by heat treatment

ABSTRACT

Well-dispersed and uniform Mn₅O₈ nanoparticles were prepared through pulse cathodic deposition followed by heat treatment. Initially, the pulse cathodic electrodeposition was performed and Mn₃O₄ nanoparticles were prepared. Next, uniform Mn₅O₈ nanoparticles were obtained through the thermal treatment. The morphological observations by X-ray diffraction and scanning electron microscope revealed that the product was composed of pure Mn₅O₈ nanoparticles. The formation of Mn₅O₈ nanoparticles through the calcination of Mn₃O₄ nanoparticles as the precursor was studied by thermogravimetric analysis. The results suggested that the cathodic electrodeposition can be considered as a simple and facile route for the preparation of uniform Mn₅O₈ nanoparticles.

KEYWORDS:

• Mn₅O₈ nanoparticles
• pulse electrodeposition
• heat treatment
• Mn₃O₄ nanoparticles