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Hybridization of Atomic Orbitals I03:24

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The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding
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用紫外线激光照明在六角化气泡中封闭气.

Fatima Z Tijent1,2,3, Montassar B Bouzourâa4, Vishnu Ottapilakkal1

  • 1CNRS, Georgia Tech - CNRS IRL 2958, 2 rue Marconi, Metz, 57070, France.

Small (Weinheim an der Bergstrasse, Germany)
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概括

研究人员使用紫外线激光制造了六角化 (h-BN) 气泡来储存. 这些稳定的气泡提供了高压和容量,显示了长期储存燃料的希望.

关键词:
紫外线激光 UV 激光 激光泡 泡 泡 是一种气泡.气是气体中的气.储存的储存的储存.h-BN-BN 在线阅读

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 六角化 (h-BN) 气泡由于其气体封闭特性,显示出微量储存的潜力.
  • 现有的h-BN泡创建方法,需要电子束和真空,在生产设置中的实际应用是有限的.

研究的目的:

  • 展示一种使用紫外线激光照射创造h-BN气泡的新实用方法.
  • 描述激光诱导的h-BN气泡的特性和储存能力.

主要方法:

  • 在蓝宝石基板上的20nmh-BN薄膜中形成h-BN气泡,使用213nm紫外线激光.
  • 原子力显微镜 (AFM) 分析气泡的大小,密度和稳定性.
  • 测量内部压力和重力测量储能容量.

主要成果:

  • 随着紫外线激光照明时间的增加,形成了高达20微米的大小和更高密度的h-BN气泡.
  • 创建的h-BN泡表现出了显著的稳定性,保持完整超过6个月.
  • 实现了41MPa的最大内部压力和6%的重力测量储能.

结论:

  • 紫外线激光照射为制造稳定的h-BN气泡以储存提供了一种实用且有效的方法.
  • h-BN气泡对高效和长期的气封闭和储存应用具有重大潜力.