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Experimental Studies On Diffusion Of Liquids In Porous Glass

Published online by Cambridge University Press:  21 February 2011

Yong Shao ,
Neil Koone  and
T. W. Zerda
Yong Shao
Affiliation:
Texas Christian University, Physics Department, P. O. Box 32915, Fort Worth, TX 76129
Neil Koone
Affiliation:
Texas Christian University, Physics Department, P. O. Box 32915, Fort Worth, TX 76129
T. W. Zerda
Affiliation:
Texas Christian University, Physics Department, P. O. Box 32915, Fort Worth, TX 76129
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Abstract

Diffusion coefficients of water and cyclohexane in porous sol-gel glass of average pore diameter 2.9 nm were obtained using a radioactive tracer technique. This information was applied to calibrate the membrane in the diaphragm cell which was subsequently used to measure the diffusion coefficients for cyclohexane, acetone, toluene, acetonitrile, and chloroform. Results for cyclohexane were compared with computer simulation of molecular motion of cyclohexane in a model cylindrical pore of diameter 2.9 nm. Translational motion of polar liquids inside the pores was found to be faster than that of neutral, not wetting solvents.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 943
Copyright
Copyright © Materials Research Society 1998

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References

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