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One-pot hydrothermal synthesis of uniformly cubic Co3O4 nanocrystals |
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| Authors: | Yonghong Teng Shinpei Yamamoto Masaki Azuma |
| Affiliation: | a Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan b Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida-Ushinomiyacho, Sakyo-ku, Kyoto, 606-8501, Japan c College of the Arts, Kurashiki University of Science and the Arts, 2640 Nishinoura, Tsurajima-cho, Kurashiki-shi, Okayama 712-8505, Japan |
| Abstract: | Cubic Co3O4 nanocrystals (NCs) were synthesized by a one-pot hydrothermal reaction in the presence of the oxidant KClO3 and the capping reagent polyvinylpyrrolidone (PVP). The as-prepared Co3O4 NCs were uniformly cubic with sharp edges and good crystallinity and showed flat surfaces with {100} facets. The capped PVP could be removed without losing cubic shape by heating the NCs at 300 °C. |
| Keywords: | Cubic nanocrystal Cobalt oxide Oxidant Capping reagent Polyvinylpyrrolidone Removal |
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