Mössbauer study of the effect of rare earth substitution into montmorillonite

E. Kuzmann, L. H. Singh, V. K. Garg, A. C. de Oliveira, E. M. Kovács, M. Molnár, Z. Homonnay, P. Kónya, N. Nagy, J. Kónya

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Novel montmorillonites were prepared by the exchange of the interlayer cations with a series of rare earth cations (La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, and Er) and characterized by XRD, XRF, SEM, chemical analysis and 57Fe Mössbauer spectroscopy. An unexpected magnetically split component, assigned to iron being in the interlayer space, was observed in the Mössbauer spectra at 78K in some rare earth cation exchanged montmorillonite. This paper is the initial report about this observation. The transition of iron from the octahedral site to the interlayer and possible incorporation of rare earths in sites different from those which are in the interlayer space was concluded.

Original languageEnglish
Article number2
Pages (from-to)1-8
Number of pages8
JournalHyperfine Interactions
Issue number1
Publication statusPublished - Dec 1 2016



  • Bentonite
  • Interlayer Fe
  • Mössbauer-spectroscopy
  • Rare earth substitution

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Kuzmann, E., Singh, L. H., Garg, V. K., de Oliveira, A. C., Kovács, E. M., Molnár, M., Homonnay, Z., Kónya, P., Nagy, N., & Kónya, J. (2016). Mössbauer study of the effect of rare earth substitution into montmorillonite. Hyperfine Interactions, 237(1), 1-8. [2]. https://doi.org/10.1007/s10751-016-1225-5