纳米片
材料科学
表面张力
吸附
二硫化钼
化学工程
分子动力学
纳米技术
形态学(生物学)
纳米颗粒
张力(地质)
化学物理
复合材料
化学
有机化学
热力学
计算化学
生物
工程类
物理
遗传学
极限抗拉强度
作者
Yang Feng,Jirui Hou,Yulong Yang,Shuting Wang,Dongsen Wang,Tingting Cheng,Zhenjiang You
出处
期刊:Fuel
[Elsevier]
日期:2021-12-21
卷期号:312: 122938-122938
被引量:11
标识
DOI:10.1016/j.fuel.2021.122938
摘要
Plate-shaped nanoparticles exhibit huge potential for a broad range of cutting-edge applications in interfacial-based science and technology, such as enhanced oil recovery in hydrocarbon reservoirs, owing to their remarkable features in superior affinity toward interfaces. Understanding the adsorption behavior of nanosheets (NSs) self-assembled at the water/oil interface (W/O interface) is crucial to elucidate the variation of interfacial tension (IFT) and establish special design criteria for efficient industrial use of NSs. Here we present a molecular dynamics study to reveal the morphology of carbon-chain modified molybdenum disulfide (MoS2) nanosheets. The stress exerted on a nanosheet is analyzed. The simulation results demonstrate a significant decrease in interfacial tension after adding NSs to the water/oil system, followed by a noticeable fluctuation with increased NS concentration. Surprisingly, the carbon-chain modified MoS2 nanosheets do not show a greater ability in altering IFT compared to unmodified ones. The IFT fluctuation is found strongly linked to the competition between the effects of interface coverage rate of adsorbed nanosheets and the intersection angle arising from non-uniform forces acting on a nanosheet.
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