抄録
We have studied the diffusion of a large hard-sphere solute immersed in binary hard-sphere mixtures. We reveal how the boundary condition at the solute surface is affected by the solvent density around the solute. Solving equations for a binary compressible mixture by perturbation expansions, we obtain the boundary condition depending on the size ratio of binary solvent spheres. When the size ratio is 1:2, the boundary condition lies close to the slip boundary condition. By contrast, when the size ratio becomes large, the boundary condition approaches the stick boundary condition with the addition of larger solvent spheres. We find that the transition to the stick boundary condition is caused by the increase in the solvent density around the solute due to an entropic effect.
| 元の言語 | 英語 |
|---|---|
| 記事番号 | 124502 |
| ジャーナル | Journal of Chemical Physics |
| 巻 | 148 |
| 発行部数 | 12 |
| DOI | |
| 出版物ステータス | 出版済み - 3 28 2018 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
これを引用
Stick boundary condition at large hard sphere arising from effective attraction in binary hard-sphere mixtures. / Nakamura, Yuka; Yoshimori, Akira; Akiyama, Ryo; Yamaguchi, Tsuyoshi.
：: Journal of Chemical Physics, 巻 148, 番号 12, 124502, 28.03.2018.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Stick boundary condition at large hard sphere arising from effective attraction in binary hard-sphere mixtures
AU - Nakamura, Yuka
AU - Yoshimori, Akira
AU - Akiyama, Ryo
AU - Yamaguchi, Tsuyoshi
PY - 2018/3/28
Y1 - 2018/3/28
N2 - We have studied the diffusion of a large hard-sphere solute immersed in binary hard-sphere mixtures. We reveal how the boundary condition at the solute surface is affected by the solvent density around the solute. Solving equations for a binary compressible mixture by perturbation expansions, we obtain the boundary condition depending on the size ratio of binary solvent spheres. When the size ratio is 1:2, the boundary condition lies close to the slip boundary condition. By contrast, when the size ratio becomes large, the boundary condition approaches the stick boundary condition with the addition of larger solvent spheres. We find that the transition to the stick boundary condition is caused by the increase in the solvent density around the solute due to an entropic effect.
AB - We have studied the diffusion of a large hard-sphere solute immersed in binary hard-sphere mixtures. We reveal how the boundary condition at the solute surface is affected by the solvent density around the solute. Solving equations for a binary compressible mixture by perturbation expansions, we obtain the boundary condition depending on the size ratio of binary solvent spheres. When the size ratio is 1:2, the boundary condition lies close to the slip boundary condition. By contrast, when the size ratio becomes large, the boundary condition approaches the stick boundary condition with the addition of larger solvent spheres. We find that the transition to the stick boundary condition is caused by the increase in the solvent density around the solute due to an entropic effect.
UR - http://www.scopus.com/inward/record.url?scp=85044339152&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044339152&partnerID=8YFLogxK
U2 - 10.1063/1.5025202
DO - 10.1063/1.5025202
M3 - Article
AN - SCOPUS:85044339152
VL - 148
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 12
M1 - 124502
ER -