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dc.contributor.authorRamiasa, M.
dc.contributor.authorRalston, J.
dc.contributor.authorFetzer, R.
dc.contributor.authorSedev, Rossen
dc.identifier.citationRamiasa, M. and Ralston, J. and Fetzer, R. and Sedev, R. 2012. Nanoroughness impact on liquid-liquid displacement. Journal of Physical Chemistry C. 116 (20): pp. 10934-10943.

The influence of surface nanoroughness on the static and dynamic behavior of a solid-water-dodecane contact line is investigated. Surface roughness is found to affect the substrate static and dynamic wettability for root-mean-square roughnesses below 7 nm. The kinetics of liquid-liquid displacement is slowed down drastically by the nanoroughness. Nevertheless, contact line motion is found to be governed by a thermally activated process. This process is not based on a pure molecular adsorption-desorption mechanism. Instead, two different nanoscale local displacements mechanisms occurring in the vicinity of the contact line may account for the thermally activated dynamics: we suggest that both molecular adsorption-desorption processes and contact line pinning on nanodefects play significant roles in controlling water displacement by dodecane on surfaces which are rough at the nanoscale.

dc.publisherAmerican Chemical Society
dc.titleNanoroughness impact on liquid-liquid displacement
dc.typeJournal Article
dcterms.source.titleJournal of Physical Chemistry C
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available

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