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ZrO 2 hollow microspheres with the average diameter of about 500 nm and the shell thickness of about 50 nm were synthesized by a facile technique using carbon spheres as templates. The corresponding ZrO 2 hollow microspheres were obtained by calcining the precursors of C–Zr(OH) 4 core-shell heterostructures, which were synthesized with the precipitation of ZrCl 4 solution...
Sea urchin-like NiO architectures were successfully synthesized by thermal decomposition of the as-prepared precursors deposited from NiCl 2 ·6H 2 O aqueous solution with urea via hydrothermal route, without using any templates or surfactants. The precursors and ultimate products were characterized by XRD, FESEM, TEM and SAED. Results showed that the obtained samples were of high purity...
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