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Porous Cr2O3 hollow microspheres assembled by nanoparticles have been successfully synthesized by thermal decomposition of a precursor which was prepared via a mild template-free hydrothermal approach. The average dimensions of these Cr2O3 hollow microspheres were about 2.2µm in diameter and 130nm in thickness of spherical shell. The structures and morphologies of the synthesized products were characterized...
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