来自MXene的金属有机框架
Hao Wu1, Maram Almalki2, Xiangming Xu1
1Materials Science and Engineering , Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia.
Journal of the American Chemical Society
|December 12, 2019
概括
研究人员使用V2CT MXene作为一种新型金属前体来创建二维金属有机框架 (MOF) 纳米板. 这一突破使可调节的MOF薄膜厚度成为可能,并为设备应用开辟了新的途径.
科学领域:
- 材料科学
- 纳米技术
- 化学学
背景情况:
- 由于控制大量前体的挑战,合成纳米金属有机框架 (MOF) 很困难.
- 现有的方法往往会产生大量的MOF,而不是精确控制的纳米结构.
研究的目的:
- 开发一种使用2D MXene材料作为金属前体制造2D MOF纳米板的新方法.
- 研究MOF纳米薄板厚度的可调性以及由此产生的薄膜的特性.
主要方法:
- 使用V2CT MXene作为MOF合成的金属前体.
- 通过调整反应温度来控制MOF纳米板厚度 (6-18 nm).
- 通过旋转涂层制造出高度定向和光滑的MOF薄膜.
- 用酸 (H3PO4) 浸MOF薄膜以赋予质子导电性.
主要成果:
- 使用V2CT MXene成功合成2DMOF纳米片,这是第一次演示.
- 通过控制反应温度来实现MOF纳米片的可调度厚度.
- 开发了高质量的,使用旋转涂层工艺定向的MOF薄膜.
- 在H3PO4浸的MOF薄膜中证明了质子导电特性.
结论:
- 对于生产高质量的二维MOF板和薄膜,二维MXene前体是有效的.
- 由于其性能和易于制造,开发的MOF薄膜具有各种设备应用的潜力.
- 这项工作在纳米级MOF的合成和应用方面取得了重大进展.
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