AOT双层在金表面的吸附：一项分子动力学研究。
AOT Bilayer Adsorption on Gold Surfaces: A Molecular Dynamics Study.
作者信息
Poghosyan Armen H, Adamyan Maksim P, Shahinyan Aram A, Koetz Joachim
机构信息
International Scientific-Educational Center of National Academy of Sciences , M. Baghramyan Ave. 24d , 0019 Yerevan , Armenia.
National Polytechnic University of Armenia , Teryan str. 105 , 0009 Yerevan , Armenia.
出版信息
J Phys Chem B. 2019 Jan 31;123(4):948-953. doi: 10.1021/acs.jpcb.8b11471. Epub 2019 Jan 22.
A molecular dynamics study was done to reveal the adsorption properties of sodium dioctyl sulfosuccinate (AOT) bilayers on gold Au(111) surfaces. Examining the rotational mobility of AOT molecules, we track that the correlation time of AOT molecules on the adsorbed layer is much higher. The data estimating the diffusive motion of AOT molecule show a substantially lower rate of diffusion (∼10 cm/s) in the adsorbed layers in comparison to other ones. The results show that an adsorbed layer is more rigid, whereas the outer layers undergo considerable lateral and vertical fluctuations.
进行了一项分子动力学研究，以揭示磺基琥珀酸二辛酯钠（AOT）双层在金Au(111)表面的吸附特性。通过检查AOT分子的旋转迁移率，我们发现吸附层上AOT分子的相关时间要高得多。估计AOT分子扩散运动的数据表明，与其他层相比，吸附层中的扩散速率（约10 cm/s）要低得多。结果表明，吸附层更刚性，而外层则经历相当大的横向和垂直波动。
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