Facile synthesis of porous nickel manganite materials and their morphology effect on electrochemical properties

New porous bipyramid, fusiform and plate structured NiMn2O4 materials have been successfully synthesized by calcining oxalate precursors in the air without using any template or surfactant. More importantly, electrochemical measurements show that morphology affects their electrochemical properties, and the porous plate structured NiMn2O4 showed a large specific capacitance and a long cycle life.