Room-temperature synthesis of ultrathin Mn3O4 nanosheets as anode materials for lithium-ion batteries

Abstract We use deionized water and ethanolamine as solvent and manganese chloride as Mn sources under stirring to successfully prepare the ultrathin two-dimensional (2D) graphene-like nanosheet materials. The as-obtained ultrathin Mn 3 O 4 nanosheets own high surface area (192.46 m 2 g −1 ) through a simple and low-cost route at room-temperature. Importantly, the ultrathin Mn 3 O 4 nanosheets exhibit a higher reversible capacity and stronger cycling stability (~520 mAh g −1 at 200 mA g −1 after 300 cycles) as anode materials for LIBs.