| 摘要 |
PURPOSE: A method for preparing a stick-shaped metal oxide particle by using w/o emulsion and a method for preparing a tube by using the metal oxide particle are provided, to obtain a stick-shaped metal oxide particle having needle-shaped end applicable to FED, MEMS and hydrogen storage. CONSTITUTION: The stick-shaped metal oxide particle having needle-shaped end is prepared by using a w/o emulsion as a reaction medium. Preferably the metal oxide is SiO2, TiO2, Al2O3, indium tin oxide (ITO), ATO, RuO2, In2O3, BaTiO3 or Fe2O3. The tube is prepared by adsorbing a tube material to the surface of the stick-shaped metal oxide particle having needle-shaped end as a supporter, and reducing it by using a reducing agent. Preferably the tube material is metal, metal oxide, semiconductor or a polymer material. |
