Preparation of nano-structured oxide materials in non-aqueous reverse micelle solution

非水反胶束溶液中纳米结构氧化物材料的制备

• 批准号: 20810036
• 负责人: YOSHIDA Akihiro
• 金额: $ 2.1万
• 依托单位: Kanagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (Start-up)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20810036/
• 关键词: ナノ構造触媒; ゾル・ゲル法

Spherical titania nano particles, macroporous silica and titania were successfully prepared by using reverse micelles in non-aqueous solution as templates The non-aqueous reverse micelle systems were formed by the addition of the highly polar solvent into the anionic surfactant solution of the non-polar solvent. The hydrolysis reaction of metal alkoxide was retarded by controlling the water content in the non-aqueous reverse micelle systems, which lead to the prevention of the formation of amorphous metal oxide products.

以非水溶液中的反胶束为模板，成功制备了球形二氧化钛纳米颗粒、大孔二氧化硅和二氧化钛。在非极性溶剂的阴离子表面活性剂溶液中加入高极性溶剂，形成非水反胶束体系。通过控制非水反胶束体系的含水量，延缓了金属醇盐的水解反应，从而防止了非晶态金属氧化物产物的形成。