| 摘要 |
The present invention relates to a preparation method of metal oxide, and more specifically to a preparation method of metal oxide comprising the steps of: a) dissolving metal halide in a solvent; b) adding and reacting water or metal hydroxide having strong basicity; c) adding base to the reaction solution and then raising a temperature thereof to form the metal oxide-carbon complex; d) stopping the reaction by inputting a large amount of water or metal hydroxide and raising the temperature thereof; and e) obtaining the metal oxide-carbon complex by a separation and a cleaning.
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