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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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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DOI: https://doi.org/10.1007/978-1-4419-6996-5_20
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