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Hierarchical ZnO hollow microspheres were prepared via a carbon microspheres-templated approach, and their microstructures were analyzed by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The as-prepared ZnO products show well-defined hollow spherical morphology with a size of 2–4µm. The thickness of ZnO shells is around 100nm, and they are assembled by numerous...
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