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Encyclopedia of Applied Electrochemistry pp 1140–1144Cite as

Ions in Clays

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Introduction and Description

Clay minerals are layered aluminosilicates (mixed silicon and aluminum oxides), which are ubiquitous in soils and the underground. Due to their behavior with respect to ions and water, they play an important role in many environmental and industrial processes, which exploit their mechanical (swelling), catalytic, or retention (e.g., cation exchange) properties. As an example, their ability to retain ions explains their consideration as part of natural (argillite rocks) and engineered (bentonite buffers) barriers for the geological disposal of toxic and radioactive waste. Clays also play a crucial role in the context of natural gas reservoirs or possible future carbon dioxide repositories, as they are a major component of cap rocks above these reservoirs. The properties of clay minerals are intimately related to their chemical composition and structure, which results in most cases in a permanent negative charge compensated by counterions. We discuss here the...

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Author information

Authors and Affiliations

  1. Laboratoire Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques, CNRS, ESPCI, Université Pierre et Marie Curie, Paris, France

    Pierre Turq, Benjamin Rotenberg & Virginie Marry

  2. Institut de Chimie Séparative de Marcoule and Université Montpellier, Marcoule, France

    Jean François Dufreche

Authors
  1. Pierre Turq
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  2. Benjamin Rotenberg
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  3. Virginie Marry
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  4. Jean François Dufreche
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Corresponding author

Correspondence to Pierre Turq .

Editor information

Editors and Affiliations

  1. Eppstein, Germany

    Gerhard Kreysa

  2. Yokohama National University, Fac. Engineering, Yokohama, Japan

    Ken-ichiro Ota

  3. Case Western Reserve University, Cleveland, OH, USA

    Robert F. Savinell

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© 2014 Springer Science+Business Media New York

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Turq, P., Rotenberg, B., Marry, V., Dufreche, J.F. (2014). Ions in Clays. In: Kreysa, G., Ota, Ki., Savinell, R.F. (eds) Encyclopedia of Applied Electrochemistry. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6996-5_20

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