Permporometry study on the size distribution of active pores in porous ceramic membranes

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Cao, G.Z. and Meijerink, J. and Brinkman, H.W. and Burggraaf, A.J. (1993) Permporometry study on the size distribution of active pores in porous ceramic membranes. Journal of Membrane Science, 83 (2). pp. 221-235. ISSN 0376-7388

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Abstract:Permporometry as well as nitrogen adsorption-desorption techniques have been applied to study the pore size distribution in γ-alumina membranes with a pore radius ranging from about 2 nm to 10 nm. The permporometry technique measures the active pores only, while nitrogen adsorption-desorption measures the active as well as the passive pores. The pore size distribution in the porous ceramic membrane supported with an -alumina substrate (supported membrane) was determined by using permporometry, while the membrane without a supporting substrate (unsupported membrane) was characterized by nitrogen adsorption-desorption. The experimental results of permporometry and nitrogen adsorption-desorption indicate that the size distribution of the active pores in the supported membranes is similar to that of the active and passive pores in the unsupported membranes. The -alumina supporting substrate seems to have no detectable influence on the size distribution of the active pores of the ceramic membranes studied.
Item Type:Article
Copyright:© 1993 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/12661
Official URL:http://dx.doi.org/10.1016/0376-7388(93)85269-3
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Metis ID: 106842