An improved model for predicting electrical conductance in nanochannels. Issue 6 (7th January 2015)

• Record Type: Journal Article
• Authors: Taghipoor, M.; Bertsch, A.; Renaud, Ph.
• Is Part Of: Physical chemistry chemical physics. Volume 17:Issue 6(2015)
• Page Start: 4160
• Page End: 4167
• Publication Date: 2015-01-07
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c4cp05338a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The net charge inside the nanochannel decreases by lowering the ionic concentration, which results in a lower electrical conductance. Abstract : Nanochannel conductance measurements are commonly performed to characterize nanofluidic devices Theoretical analysis and experimental investigations imply that the nanochannel conductance does not follow the macro-scale models. It is generally accepted that the conductance of nanochannels deviates from the bulk and trend to a constant value at low concentrations. In this work, we present an improved model for the nanochannel conductance that takes into account the surface chemistry of the nanochannel wall. It figured out that the nanochannel conductance is no longer constant at low concentrations. The model predictions were compared with the experimental measurements and showed a very good agreement between the model and the experiments.