Experimental Verification of Overlimiting Current by Surface Conduction and Electro-Osmotic Flow in Microchannels

Experimental Verification of Overlimiting Current by Surface Conduction and Electro-Osmotic Flow in Microchannels

Direct evidence is provided for the transition from surface conduction (SC) to electro-osmotic flow (EOF) above a critical channel depth (d) of a nanofluidic device. The dependence of the overlimiting conductance (OLC) on d is consistent with theoretical predictions, scaling as d[superscript −1] for...

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Main Authors: Nam, Sungmin (Author), Cho, Inhee (Author), Heo, Joonseong (Author), Lim, Geunbae (Author), Bazant, Martin Z. (Contributor), Moon, Dustin Jaesuk (Author), Sung, Gun Yong (Author), Kim, Sung Jae (Author)
Other Authors: Massachusetts Institute of Technology. Department of Chemical Engineering (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2015-03-24T16:04:59Z.
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