一种微孔酸盐,具有12,12和8环孔和孤立的8环通道
Naoto Nakazawa1, Takuji Ikeda2, Norihito Hiyoshi2
1Division of Materials Science and Chemical Engineering, Yokohama National University , 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
Journal of the American Chemical Society
|June 6, 2017
概括
研究人员开发了一种新型的化,YNU-5,具有独特的相互连接和独立的孔径. 这种坚固的材料可以作为生产轻型烯酸的工业催化剂.
科学领域:
- 材料科学与工程
- 催化和分离科学
- 纳米技术和石化学
背景情况:
- 具有复杂孔隙结构的热石的受控合成对于先进的化学转化,环境修复和能源效率至关重要.
- 在一个单一的框架内开发具有多重,相互连接的孔径的热石一直是材料科学中的一个长期目标.
研究的目的:
- 报告一种新型的酸,YNU-5的合成和结构特征.
- 调查YNU-5作为二甲基以太与olefin反应的催化剂的潜力.
主要方法:
- 传统的水热合成,使用易于获得的原料.
- 通过基于X射线衍射的技术来确定结构.
- 通过通过酸处理调节Si/Al比率.
主要成果:
- 成功合成YNU-5,第一个具有相互连接的12,12和8环孔,以及独立的直线8环通道.
- 岩框架是稳定的,可控制的Si/Al比率在9到350之间.
- X射线衍射揭示了9个独立的四面体协调原子,表明一个复杂而强大的结构.
结论:
- YNU-5具有独特而坚固的孔隙结构,使其具有工业价值.
- 新的结构特征和可调节的Si/Al比率使YNU-5成为生产烯和丁烯等轻烯的有前途的催化剂.
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