Transport Numbers of Singly-, Doubly- and Triply-Charged Cations in Porous Glasses

Transport numbers of sodium, nickel, and lanthanum counterions have been studied in microporous (average pore radius is r = 2–3.4 nm) and macroporous ( r = 16–27 nm) magnetite-free glasses and those containing magnetite in their matrices. It has been found that, in the case of microporous glasses, t...

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Bibliographic Details
Published in:Colloid journal of the Russian Academy of Sciences 2021, Vol.83 (3), p.294-301
Main Authors: Ermakova, L. E., Kuznetsova, A. S., Antropova, T. V.
Format: Article
Language:English
Subjects:
Cations
Chemistry
Chemistry and Materials Science
Lanthanum
Magnetite
Polymer Sciences
Silicon dioxide
Surface charge
Surfaces and Interfaces
Thin Films
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Summary:Transport numbers of sodium, nickel, and lanthanum counterions have been studied in microporous (average pore radius is r = 2–3.4 nm) and macroporous ( r = 16–27 nm) magnetite-free glasses and those containing magnetite in their matrices. It has been found that, in the case of microporous glasses, the relation between the transport numbers of the studied cations is primarily governed by the structure of secondary silica in pore channels. For membranes prepared from macroporous glasses, the transport numbers of the cations in the pore space depend on the surface charge magnitude and the structure of the electrical double layer.
ISSN:1061-933X
1608-3067
DOI:10.1134/S1061933X21030030