Capillary Filling of Anodized Alumina Nanopore Arrays
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Alvine, Kyle J.
Shpyrko, Oleg G.
Russell, Thomas P.
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CitationAlvine, Kyle J., Oleg G. Shpyrko, Peter S. Pershan, Kyusoon Shin, and Thomas P. Russell. 2006. Capillary filling of anodized alumina nanopore arrays. Physical Review Letters 97(175503).
AbstractThe filling behavior of a room temperature solvent, perfluoromethylcyclohexane, in approximately 20 nm nanoporous alumina membranes was investigated in situ with small angle x-ray scattering. Adsorption in the pores was controlled reversibly by varying the chemical potential between the sample and a liquid reservoir via a thermal offset, ΔT. The system exhibited a pronounced hysteretic capillary filling transition as liquid was condensed into the nanopores. These results are compared with Kelvin-Cohan theory, with a modified Derjaguin approximation, as well as with predictions by Cole and Saam.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4726295
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