Abstract
Reduction of extra-framework iron ions to the zerovalent state using sodium vapour generated by thermal decomposition of sodium azide in mixtures with Fe-X and Fe-Y is reported. The resulting products were analysed by in situ Mössbauer spectroscopy, DC magnetometry, X-ray diffraction, and transmission electron microscopy measurements. A part of the iron ions was reduced to the zerovalent state in the samples. Metallic iron was formed in two size ranges upon reduction: metallic particles in the 2-7 nm range and small clusters of around I nm. Simultaneous recrystallization of the zeolite framework was also observed.
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© 1999 Springer Science+Business Media Dordrecht
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Lázár, K., Kiss, L.F., Pronier, S., Onyestyák, G., Beyer, H.K. (1999). Iron Nanoparticles in X and Y Zeolites Prepared by Reduction With NaN3 . In: Miglierini, M., Petridis, D. (eds) Mössbauer Spectroscopy in Materials Science. NATO Science Series, vol 66. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4548-0_27
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DOI: https://doi.org/10.1007/978-94-011-4548-0_27
Publisher Name: Springer, Dordrecht
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