| 研究実績の概要 |
Porous nanomaterials have attracted immense attention due to their distinctive features such as tunable pore architectures, large pore volumes, and high specific surface areas. In particular, metal oxides and metal phosphates are highly stable, and their nanostructures can be tuned by using different templates. The major purpose of this research is to design novel porous nanomaterials which can be applied to several applications in a wide range of research areas such as energy generation and storage. Furthermore, carbon dioxide fixation and its conversion to highly valued fine chemicals and fuels can largely mitigate this greenhouse gas. Thus, the purpose of this research is to develop sustainable catalysts.
In this year, we synthesized several mesoporous metal phosphates and metal oxides using aqueous sol-gel routes at different synthetic conditions. We also applied water-alcohol mixture in these sol-gel synthesis processes to obtain stable and highly ordered mesophases. Apart from utilizing self-assembly of surfactants in aqueous and mixed solvent phases, evaporation induced self-assembly route was also utilized for designing mesoporous metal phosphates and metal oxides. Some of results were published already in international journals.
|
| 今後の研究の推進方策 |
Mesoporous metallophosphates containing different transition and non-transition reactive metal component will be designed using surfactant templating routes. Apart from utilizing the supramolecular assembly of the surfactants in aqueous and mixed solvent phases, evaporation induced self-assembly route will also be utilized for designing periodic mesoporous metal oxide and metallophosphate materials. Non-aqueous solvents will be used under acidic pH conditions to hydrolyze the metal and phosphate precursors in the presence of different non-ionic triblock copolymers as template. This will be followed by the polycondensation of these inorganic nuclei under slow evaporation process. Further, calcination of the dried gel at elevated temperature will resulted in the formation of metal oxide and metallophosphate mesophases.
|
