In this paper, a facile, one-step hydrothermal method for synthesis of Co(OH)2 nanodisks and nanorings without using any surfactants is reported. As-prepared samples were thoroughly characterized and analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), etc. The results showed that the size of as-prepared Co(OH)2 nanodisks could be determined by controlling the concentration of NaOH (8–16 mM) while maintaining other reaction conditions (such as temperature, reaction time, and solution compositions) unchanged. Furthermore, hexagonal nanorings could be obtained by changing the molar ratio between Ni and Co precursors.
Research on Chemical Intermediates – Springer Journals
Published: Feb 6, 2011
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