Citation: ZHANG Fang, ZHANG Xiao-Gang. Mn2O3 Sub-Micron Powder: Preparation via Complex Thermolysis Route and Electrochemical Properties[J]. Chinese Journal of Inorganic Chemistry, ;2012, 28(12): 2626-2632.
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This report describes a facile preparation and electrochemical properties of Mn2O3 sub-micron powder via thermal decomposition of an isonicotinic acid manganese complex. An isonicotinic acid manganese complex of [Mn(INA)2(H2O)4]n (INA=isonicotinic acid) was synthesized by liquid diffusion method using an aqueous solution of manganese acetate and isonicotinic acid as the raw material. Mn2O3 sub-micron powder was then prepared by solid-state thermolysis of the as-synthesized INA-Mn complex at higher temperature under atmospheric pressure. The obtained products were characterized by FTIR, TG-DTA, XRD, TEM and FESEM. As an electrode material for supercapacitors, the prepared Mn2O3 electrode shows a strong cycle stability in 0.5 mol·g-1 Na2SO4 electrolyte and a specific capacitance of 88 F·g-1 at a current density of 0.5 A·g-1 vs. the saturated calomel electrode (SCE).
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