A Thermodynamic Understanding of Clay-Swelling Inhibition by Potassium Ions

A Thermodynamic Understanding of Clay-Swelling Inhibition by Potassium Ions

Caged: Potassium ions are trapped in coordination cages composed of surface hexagons and water molecules in a smectite interlayer (see picture; blue K, red O, white H). This microstructure leads to a striking stability of the single‐layer K‐smectite hydrate and inhibits further swelling of the clay....

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Veröffentlicht in:Angewandte Chemie International Edition 2006-09, Vol.45 (38), p.6300-6303
Hauptverfasser: Liu, Xian-Dong, Lu, Xian-Cai
Format: Artikel
Sprache:eng
Schlagworte:
clays
mobility
molecular dynamics
potassium
thermodynamics
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Zusammenfassung:Caged: Potassium ions are trapped in coordination cages composed of surface hexagons and water molecules in a smectite interlayer (see picture; blue K, red O, white H). This microstructure leads to a striking stability of the single‐layer K‐smectite hydrate and inhibits further swelling of the clay.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200601740