Capillary rise dynamics of liquid hydrocarbons in mesoporous silica as explored by gravimetry, optical and neutron imaging: Nano-rheology and determination of pore size distributions from the shape of imbibition fronts
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- 作者：Simon Gruenera ; b ; Helen E. Hermesc ; Burkhard Schillingerd ; Stefan U. Egelhaafc ; Patrick Hubera ; e ; patrick.huber@tuhh.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Imbibition ; Alkanes ; Radiography ; Nanopore ; Wetting ; Porosimetry ; Porous media
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2016
- 出版时间：5 May 2016
- 年：2016
- 卷：496
- 期：Complete
- 页码：13-27
- 全文大小：2967 K
文摘
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Imbibition of alkanes into mesoporous Vycor is observed by novel neutron imaging.
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Both, the imbibition front's height and broadening, obey a square-root-of-time dynamics.
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Also the front's shape is quantitatively followed with sufficient resolution.
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Based on these kinetic data, pore size distributions can be determined.
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And details of pore-wall adsorbed layers, here water covered by alkanes, inferred.