Fluid phase interface properties of acetone, oxygen, nitrogen and their binary mixtures by molecular simulation.
Fluid phase interface properties of acetone, oxygen, nitrogen and their binary mixtures by molecular simulation.
复制标题
通过分子模拟研究丙酮、氧气、氮气及其二元混合物的流体相界面性质
DOI:
10.1039/c5cp03415a
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
J. Vrabec
中科院分区:
文献类型:
--
作者:
S. Eckelsbach;J. Vrabec
Vapor–liquid equilibria (VLE) of the pure substances acetone, oxygen and nitrogen as well as their binary mixtures are studied by molecular dynamics (MD) simulation with a direct approach. Thereby, particular attention is paid to the interface behavior on the molecular level, yielding total and partial density profiles as well as surface tension data. The classical approach by van der Waals is used to analyze the total density profiles. It is found that an extended function is needed to describe those profiles for the mixtures containing acetone, due to the strong adsorption of the volatile component at the vapor side of the interface. Based on these representations the interface thickness is studied. The surface tension results are compared to experimental data, correlations thereof and results from other molecular approaches. Due to the scarcity of experiments, the parachor method is employed to obtain predictive surface tension data for the mixtures. Following the same approach, the present surface tension results are correlated for the mixtures containing acetone.
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DOI:
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发表时间:
2003
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
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--
期刊:
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期刊:
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