Effect of the interaction strength and anisotropy on the diffusio-phoresis of spherical colloids

doi:10.1039/c9sm02053e

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Effect of the interaction strength and anisotropy on the diffusio-phoresis of spherical colloids
	Wei JC(韦佳辰)3,4; Ramirez-Hinestrosa S 3; Dobnikar J 1,2,3; Frenkel D 3
刊名	SOFT MATTER
	2020-04-21
卷号	16 期号:15 页码:3621-3627
ISSN号	1744-683X
DOI	10.1039/c9sm02053e
通讯作者	Dobnikar, Jure(jd489@cam.ac.uk) ; Frenkel, Daan(df246@cam.ac.uk)
英文摘要	Gradients in temperature, concentration or electrostatic potential cannot exert forces on a bulk fluid; they can, however, exert forces on a fluid in a microscopic boundary layer surrounding a (nano)colloidal solute, resulting in so-called phoretic flow. Here we present a simulation study of phoretic flow around a spherical colloid held fixed in a concentration gradient. We show that the resulting flow velocity depends non-monotonically on the strength of the colloid-fluid interaction. The reason for this non-monotonic dependence is that solute particles are effectively trapped in a shell around the colloid and cannot contribute to diffusio-phoresis. We also observe that the flow depends sensitively on the anisotropy of solute-colloid interaction.
分类号	二类/Q1
资助项目	National Key Research and Development Program of China[2016YFA0501601] ; EU[766972-FET-OPEN-NANOPHLOW] ; K. C. Wong Educational Foundation ; National Natural Science Foundations of China[11602279] ; National Natural Science Foundations of China[11874398]
WOS关键词	PARTICLES ; GRADIENTS ; THERMOPHORESIS ; MIGRATION ; SALT
WOS研究方向	Chemistry ; Materials Science ; Physics ; Polymer Science
语种	英语
WOS记录号	WOS:000527020700020
资助机构	National Key Research and Development Program of China ; EU ; K. C. Wong Educational Foundation ; National Natural Science Foundations of China
其他责任者	Dobnikar, Jure ; Frenkel, Daan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81879]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; 3.Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England; 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Wei JC,Ramirez-Hinestrosa S,Dobnikar J,et al. Effect of the interaction strength and anisotropy on the diffusio-phoresis of spherical colloids[J]. SOFT MATTER,2020,16(15):3621-3627.
APA	韦佳辰,Ramirez-Hinestrosa S,Dobnikar J,&Frenkel D.(2020).Effect of the interaction strength and anisotropy on the diffusio-phoresis of spherical colloids.SOFT MATTER,16(15),3621-3627.
MLA	韦佳辰,et al."Effect of the interaction strength and anisotropy on the diffusio-phoresis of spherical colloids".SOFT MATTER 16.15(2020):3621-3627.