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Thermal Expansion and Viscosity of Confined Liquids

Published online by Cambridge University Press:  01 February 2011

Shuangyan Xu ,
Gregory C. Simmons  and
George W. Scherer
Shuangyan Xu
Affiliation:
Department of Civil & Environmental Engineering, Princeton University, Princeton, NJ 08544, U.S.A.
Gregory C. Simmons
Affiliation:
Department of Civil & Environmental Engineering, Princeton University, Princeton, NJ 08544, U.S.A.
George W. Scherer
Affiliation:
Department of Civil & Environmental Engineering, Princeton University, Princeton, NJ 08544, U.S.A.
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Abstract

The thermal expansion and viscosity of water and salt solutions in porous silica glasses have been systematically investigated, and the effect of salts on the properties of water in confined geometry has been addressed. A dilatometric method has been devised and utilized to measure the thermal expansion of confined liquids. A beam-bending method that was developed to study the permeability of porous bodies has been used to measure the relative viscosity of salt solutions to water inside the silica pores. This work has demonstrated that water when confined in nanopores shows anomalous behavior and its thermal expansion is higher than bulk water. This work has also suggested that the presence of ions in water could enhance the anomaly of water in confined space and the extent of the ion effect is dependent on the ion charge.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 790: Symposium P – Dynamics in Small Confining Systems–2003 , 2003 , P6.8
Copyright
Copyright © Materials Research Society 2004

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References

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