和氧化表面喷的分子动力学模拟
Shokirbek Shermukhamedov1,2, Thana Maihom3, Kersti Hermansson1
1Department of Chemistry, Ångström Laboratory, Uppsala University 75121 Uppsala Sweden shokirbek.shermukhamedov@kemi.uu.se.
RSC advances
|September 22, 2025
概括
分子动力学模拟揭示了原子如何与和氧化物表面相互作用. 氧化物表面的喷产量较低,与在的影响下纯表面相比.
科学领域:
- 材料科学 材料科学 材料科学
- 计算物理 计算物理
- 表面科学是一门学科.
背景情况:
- 基材料对于聚变装置和技术应用至关重要.
- 了解等离子体粒子与表面的原子级相互作用是必不可少的,但尚未得到充分研究.
- 在能量粒子冲击下,和氧化表面的稳定性和喷行为需要详细的研究.
研究的目的:
- 研究原子在和氧化物表面上的喷射,反射和吸附.
- 分析能量和角度对这些表面相互作用的影响.
- 为和氧化在能量粒子轰炸下的表面行为开发一个参数模型.
主要方法:
- 使用了古典分子动力学 (MD) 模拟.
- 使用密度函数理论 (DFT) 计算来训练一个神经网络潜力 (NNP).
- 在潜在的建设和模拟设置中使用了Behler-Parrinello方法.
主要成果:
- 模拟分析了在和氧化物表面上的喷产量,吸附和反射事件.
- 喷产量随着的冲击能量增加,呈现出明显的趋势.
- 来自氧化的喷产量明显低于原始表面的产量.
结论:
- 这项研究提供了对和氧化物表面的原子级稳定性和喷雾行为的见解.
- 分析了能量和角度依赖的相互作用率.
- 这些发现可以为基材料在聚变应用中的参数模型的开发提供信息.
更多相关视频
13:58Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
Published on: September 28, 2016
12.2K
06:49Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates
Published on: April 12, 2019
8.1K
相关概念视频
Hydroboration-Oxidation of Alkenes
11.1K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
11.1K
Hybridization of Atomic Orbitals I
65.8K
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...
65.8K
Molecular Orbital Theory II
26.9K
Molecular Orbital Energy Diagrams
26.9K
