A series of Mn _(2) O _(3) nanomaterials with hierarchical porous structures was synthesized using three types of leaves as templates. In addition to their different morphologies, different porous nanostructures were achieved by choosing different leaves. The Mn _(2) O _(3) nanomaterial prepared by using gingko leaves as a template provides a larger pore volume and a higher Brunauer–Emmett–Teller (BET) surface area. At the same time, this material also displays excellent electrochemical performance, that is, the specific capacities are 1274.6 mA h g ~(?1) after 300 cycles and 381.5 mA h g ~(?1) at current densities of 300 and 3000 mA g ~(?1) , respectively.
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机译：以三种类型的叶片为模板，合成了具有多层多孔结构的一系列Mn _（2）O _（3）纳米材料。除了它们不同的形态外，通过选择不同的叶子还获得了不同的多孔纳米结构。以银杏叶为模板制备的Mn _（2）O _（3）纳米材料具有较大的孔体积和较高的Brunauer-Emmett-Teller（BET）表面积。同时，该材料还显示出优异的电化学性能，即在300次循环后的比容量为1274.6 mA hg〜（？1），在300和3000 mA g〜的电流密度下的比容量为381.5 mA hg〜（？1）。 （？1）。
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