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相关概念视频

Properties of Organometallic Compounds01:23

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Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
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The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
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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
PubMed
概括
此摘要是机器生成的。

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.

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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.