Mössbauer study of the effect of rare earth substitution into montmorillonite

Kuzmann, E ✉ [Kuzmann, Ernő (Nukleáris szerkez...), author] Laboratory of Nuclear Chemistry (ML) (ELTE / ELU FoS / IC); Singh, LH; Garg, VK; de Oliveira, AC; Kovács, EM [Kovács, Eszter Mária (Kémia), author] Department of Colloid and Environmental Chemistry (UD / IChem); Molnár, ÁM; Homonnay, Z [Homonnay, Zoltán (Radiokémia), author] Laboratory of Nuclear Chemistry (ML) (ELTE / ELU FoS / IC); Kónya, P [Kónya, Péter (Ásványtan), author] Geological and Geophysical Institute of Hungary; Nagy, NM [M. Nagy, Noémi (Környezettudomány), author] Department of Colloid and Environmental Chemistry (UD / IChem); Kónya, J [Kónya, József (Radiokémia), author] Department of Colloid and Environmental Chemistry (UD / IChem)

English Scientific Article (Journal Article)
Published: HYPERFINE INTERACTIONS 0304-3843 1572-9540 237 (1) Paper: 2 , 8 p. 2016
  • SJR Scopus - Atomic and Molecular Physics, and Optics: Q2
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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. © 2016, Springer International Publishing Switzerland.
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    2021-11-27 06:48