Self-Assembly of Metal Oxide Nanoparticles into Hierarchically Patterned Porous Architectures Using Ionic Liquid/Oil Emulsions

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• 作者：Shenghu Zhou ; Zhen Ma ; Gary A. Baker ; Adam J. Rondinone ; Qing Zhu ; Huimin Luo ; Zili Wu ; Sheng Dai
• 刊名：Langmuir
• 出版年：2009
• 出版时间：July 7, 2009
• 年：2009
• 卷：25
• 期：13
• 页码：7229-7233
• 全文大小：857K
• 年卷期：v.25,no.13(July 7, 2009)
• ISSN：1520-5827

文摘

Hierarchically patterned macroporous TiO₂ structures can be fabricated via the spontaneous self-assembly of TiO₂ nanoparticles prepared using a mixture of 1-octadecene (ODE) and an ODE-immiscible 1-alkyl-3-methylimidazolium-based ionic liquid as the reaction medium. A study of the influence of side chain lengths of ionic liquids (n = 4, 8, or 16) reveals that this parameter can be further used to fine-tune the morphologies of the products. This synthetic methodology can also be extended to the formation of patterned macroporous ZrO₂ and Fe₃O₄ structures. Finally, the potential reasons for the formation of hierarchical structures are discussed and the implications to further research are proposed.