| 摘要 |
PCT No. PCT/FR88/00471 Sec. 371 Date Jul. 17, 1989 Sec. 102(e) Date Jul. 17, 1989 PCT Filed Sep. 27, 1988 PCT Pub. No. WO89/02869 PCT Pub. Date Apr. 6, 1989.The invention relates to a method for the preparation of metallic oxides. The method is carried by controlled hydrolysis of metallic alkoxides using an alkoxide emulsion which contains hydrophobic water/solvent reverse micelles and a surfactant, then submitting the polymer gel obtained to thermal treatment. In order to prepare metallic oxides layers, the reaction product is coated on a support when hydrolysis is only partial. |
