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Thermogravimetric investigation

Solid-state ion-exchange procedure of Cu2+, Co2+, Ni2+ and Fe2+ ions into montmorillonite

  • Inorganic and Coordination Chemistry
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Abstract

Ion-exchange of transition metal ions into montmorillonite was investigated using two different ion-exchange procedures. Performing ion-exchange from aqueous solution of the respective metal ion leads to material possessing measurable BrØnsted acidity, while the solid-state exchange materials show predominantly Lewis acidity.

Measurements by means of a derivatograph allowed us to construct a feasible reaction mechanism for solid-state ion exchange. Satisfactory correlation was found between the results calculated from the reaction steps assumed and the measurements by means of a derivatograph.

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Authors and Affiliations

  1. Applied Chemistry Department, József Attila University, Rerrich B. tér 1, Szeged, Hungary

    Á. Fudala, J. Halász & I. Kiricsi

Authors
  1. Á. Fudala
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  2. J. Halász
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  3. I. Kiricsi
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Additional information

Financial support by the Hungarian Research Fund (OTKA T014275) is gratefully acknowledged. The skilful technical assistance of Kati Barna is highly appreciated.

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Fudala, Á., Halász, J. & Kiricsi, I. Thermogravimetric investigation. Journal of Thermal Analysis 47, 399–406 (1996). https://doi.org/10.1007/BF01983981

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  • DOI: https://doi.org/10.1007/BF01983981

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