https://scholars.lib.ntu.edu.tw/handle/123456789/61394
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor | National Taiwan University Dept Chem Engn | en |
dc.contributor.author | Jau M. Ding | en_US |
dc.contributor.author | HUAN-JANG KEH | en_US |
dc.creator | Keh, Huan J.; Ding, Jau M. | en |
dc.date | 2003 | - |
dc.date.accessioned | 2006-11-14T18:45:18Z | - |
dc.date.accessioned | 2018-06-28T16:57:38Z | - |
dc.date.available | 2006-11-14T18:45:18Z | - |
dc.date.available | 2018-06-28T16:57:38Z | - |
dc.date.issued | 2003 | - |
dc.identifier | 246246/2006111501275356 | en |
dc.identifier.uri | https://www.scopus.com/record/display.uri?eid=2-s2.0-0038385094&origin=resultslist&sort=plf-f&cite=2-s2.0-0038385094&src=s&imp=t&sid=fa8fa4f8e26c753132cee0be2563d931&sot=cite&sdt=a&sl=0 | - |
dc.description.abstract | An analytical study of the steady electrokinetic flow in a long uniform capillary tube or slit is presented. The inside wall of the capillary is covered by a layer of adsorbed or covalently bound charge-regulating polymer in equilibrium with the ambient electrolyte solution. In this solvent-permeable and ion-penetrable surface polyelectrolyte layer, ionogenic functional groups and frictional segments are assumed to distribute at uniform densities. The electrical potential and space charge density distributions in the cross section of the capillary are obtained by solving the linearized Poisson–Boltzmann equation. The fluid velocity profile due to the application of an electric field and a pressure gradient through the capillary is obtained from the analytical solution of a modified Navier–Stokes/Brinkman equation. Explicit formulas for the electroosmotic velocity, the average fluid velocity and electric current density on the cross section, and the streaming potential in the capillary are also derived. The results demonstrate that the direction of the electroosmotic flow and the magnitudes of the fluid velocity and electric current density are dominated by the fixed charge density inside the surface polymer layer, which is determined by the regulation characteristics such as the dissociation equilibrium constants of the ionogenic functional groups in the surface layer and the concentration of the potential-determining ions in the bulk solution. | en |
dc.format | application/pdf | en |
dc.format.extent | 366971 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | en_US | en |
dc.language.iso | en_US | en |
dc.publisher | Taipei:National Taiwan University Dept Chem Engn | en |
dc.relation | Journal of Colloid & Interface Science 263(2003), 645–660 | en |
dc.relation.ispartof | Journal of Colloid & Interface Science 263(2003), 645–660 | en_US |
dc.source | http://www.sciencedirect.com/ | en |
dc.subject | Polyelectrolyte-coated capillary | en |
dc.subject | Charge-regulating polymer | en |
dc.subject | Electroosmosis | en |
dc.subject | Streaming potential | en |
dc.title | Electrokinetic flow in a capillary with a charge-regulating surface polymer layer | en |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/S0021-9797(03)00354-0 | - |
dc.identifier.scopus | 2-s2.0-0038385094 | - |
dc.relation.pages | - | - |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/2006111501275356/1/6802.pdf | - |
item.languageiso639-1 | en_US | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.fulltext | with fulltext | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
crisitem.author.dept | Chemical Engineering | - |
crisitem.author.orcid | 0000-0002-8156-2122 | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 化學工程學系 |
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