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A novel method of preparing cube-like MnO2 by MnCO3 was firstly reported. The MnCO3 used as self-sacrificing template was synthesized via a polyol process. The porous, hierarchical MnO2 microcubes with uniform size were obtained after thermal treatment from as-prepared MnCO3 in air atmosphere. X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM) together...
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