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Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
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Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
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小孔液体框架储存密集的气.

Hyunchul Oh1,2, Nikolay Tumanov3, Voraksmy Ban3

  • 1Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.

Nature chemistry
|February 6, 2024
PubMed
概括

研究人员开发了一种玻利化框架,用于密集的储存. 这种纳米孔状材料实现了高体积容量,超过液态密度,在环境压力下有效吸收气体.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学 化学 化学
  • 物理 物理学 物理

背景情况:

  • 纳米孔状材料对气体储存具有前景.
  • 实现高体积储能是一个关键的挑战.

研究的目的:

  • 调查和的吸收在玻利化框架.
  • 探索大容量存储容量的潜力.

主要方法:

  • 中子子粉的 difraktion 分散方式.
  • 容量计气体吸附吸附方式
  • 不弹性中子散射是一种不弹性的中子散射.
  • 第一个原则计算计算.

主要成果:

  • 和在不同的位点吸附,具有不同的容量.
  • 实现了高的H2吸收2.33每Mg(BH4)2.2.
  • 观察到极其密集的包装 (144 g/L孔积),超过液态密度.
  • 确定了一个五二集群,具有不同的H2分子流动性和相互作用.

结论:

  • 小孔酸基架可以稳定密集的气.
  • 这种材料在环境条件下为高体积储存提供了可行的途径.