“…9,10 It is also a starting material for manufacturing manganese zinc ferrite used as so magnetic materials and lithium manganese oxides used as electrode materials due to its low cost and great environmental compatibility. Considerable interest has been paid to synthesizing Mn 3 O 4 nanostructures, 11,12 for instance, nanoparticles, [13][14][15][16] nanorods, 17,18 nanowires or nanobers, 19,20 nanoplates, 21 superlattices 22 and hierarchical nanostructures. [23][24][25][26][27][28] Among these, hierarchical Mn 3 O 4 nanostructures take advantage of both nanometer-sized building blocks and micro-sized assemblies.…”