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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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
Volume237
Issue number1
DOIs
Publication statusPublished - Dec 1 2016

Fingerprint

Bentonite
montmorillonite
Rare earths
Cations
interlayers
Substitution reactions
rare earth elements
substitutes
Iron
cations
iron
chemical analysis
Spectroscopy
Scanning electron microscopy
Chemical analysis
scanning electron microscopy
spectroscopy

Keywords

  • 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., ... 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

Mössbauer study of the effect of rare earth substitution into montmorillonite. / 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.

In: Hyperfine Interactions, Vol. 237, No. 1, 2, 01.12.2016, p. 1-8.

Research output: Contribution to journalArticle

Kuzmann, E, Singh, LH, Garg, VK, de Oliveira, AC, Kovács, EM, Molnár, M, Homonnay, Z, Kónya, P, Nagy, N & Kónya, J 2016, 'Mössbauer study of the effect of rare earth substitution into montmorillonite', Hyperfine Interactions, vol. 237, no. 1, 2, pp. 1-8. https://doi.org/10.1007/s10751-016-1225-5
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. / Mössbauer study of the effect of rare earth substitution into montmorillonite. In: Hyperfine Interactions. 2016 ; Vol. 237, No. 1. pp. 1-8.
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