Diffusiophoresis of a Nonuniformly Charged Sphere in a Narrow Cylindrical Pore
學年 99
學期 2
出版(發表)日期 2011-06-01
作品名稱 Diffusiophoresis of a Nonuniformly Charged Sphere in a Narrow Cylindrical Pore
作品名稱(其他語言)
著者 Hsu, Jyh-Ping; Luu, Xuan-Cuong; Tseng, Shiojenn
單位 淡江大學數學學系
出版者 Washington, DC: American Chemical Society
著錄名稱、卷期、頁數 The Journal of Physical Chemistry C 115(25), pp.12592-12603
摘要 The influences of the boundary effect and the charged conditions of a particle on its diffusiophoretic behavior are studied by considering the diffusiophoresis of a nonuniformly charged sphere along the axis of a narrow cylindrical pore. We show that the surface charge distribution of the particle is capable of yielding the complicated phenomenon of double-layer polarization and, together with the presence of the pore, leads to profound and interesting diffusiophoretic behaviors. For example, if the electrophoresis effect coming from the difference in the ionic diffusivities is absent, then the diffusiophoretic velocity of a particle with the sign of the surface charge on its middle part different from that on its left- and right-hand parts has both a local maximum and a local minimum as the fraction of the middle varies; that velocity has only a local minimum if the whole particle is charged with the same sign. If the electrophoresis effect is significant, then the diffusiophoretic behavior of the particle depends mainly on its averaged surface charge density.
關鍵字
語言 en
ISSN 1932-7447 1932-7455
期刊性質 國外
收錄於
產學合作
通訊作者 Hsu, Jyh-Ping
審稿制度
國別 USA
公開徵稿
出版型式 紙本 電子版
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