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arXiv · cond-mat/0612119

Capillary Filling of Anodized Alumina Nanopore Arrays

K. J. Alvine·O. G. Shpyrko·P. S. Pershan·K. Shin·T. P. Russell
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Abstract

The 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, $Δ$T. 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.

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K. J. Alvine, O. G. Shpyrko, P. S. Pershan, K. Shin, T. P. Russell. 2006-12-05. Capillary Filling of Anodized Alumina Nanopore Arrays. https://doi.org/10.1103/physrevlett.97.175503

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