2097
Mesoporous Mn2O3 Nanoparticles Via Hydrothermal Process for Supercapacitor Applications

Monday, 14 May 2018: 08:20
Room 620 (Washington State Convention Center)

ABSTRACT WITHDRAWN

In recent year, Mn2O3 nanomaterials exhibit a high surface area, narrow pore size distribution, large pore volume, and high thermal stability. MnOx materials have shown promising candidates for active electrode materials for various electrochemical systems like fuel cells, supercapacitors etc., due to their high specific capacitance, low cost, abundance and environmentally benign nature. In this work, the mesoporous Mn2O3 nanoparticles (NPs) were synthesized by manganese acetate, citric acid and sodium hydroxide through hydrothermal process at 150 oC for 3h. The synthesized mesoporous Mn2O3 NPs were characterized in terms of their morphology, surface, crystalline, electrochemical and electrochemical properties. For supercapacitor applications, the synthesized mesoporous Mn2O3 NPs based electrode showed the excellent specific capacitance (Csp) of 460 Fg−1 through good electrocatalytic activity by observing good electrochemical properties in 6M KOH. Excellent Csp might be explained by the facts in improving the surface area, porous surface and uniformity, which might favor in generating large active sites and fast ionic transport over the good electrocatalytic surface of the Mn2O3 electrode. The fabricated supercapacitors exhibited good cycling stability after 1000 cycles by maintaining ~ 86% of initial Csp.