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Fabrichnyi, P. B., Afanasov, M. I. & Danot, M. (2008) 5s5p element dopant cations: Mossbauer probes for studying chemical reactions at the solid-gas interface. Russ. J. Gen. Chem. 78 1060–1069.
Added by: Laurent Cournède (2016-03-10 21:58:42) |
| Type de référence: Article DOI: 10.1134/S1070363208050393 Numéro d'identification (ISBN etc.): 1070-3632 Clé BibTeX: Fabrichnyi2008 Voir tous les détails bibliographiques  |
Catégories: IMN Mots-clés: atmosphere, cr2o3 microcrystals, crystallites, impurity ions, local environment, sn-119, spectrometry, spectroscopy, Surface, tin Créateurs: Afanasov, Danot, Fabrichnyi Collection: Russ. J. Gen. Chem. |
Consultations : 1/818
Indice de consultation : 5% Indice de popularité : 1.25% |
| Résumé |
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Annealing in reducing atmosphere allows stabilization of the Sn4+, Sb5+, or Te6+ dopant cations in a lower oxidation state. Due to its stereochemical activity, the lone electron pair of the resulting Sn2+, Sb3+, or Te4+ favors the location of these species in low-coordination sites, immediately on the surface of the substrate-compound crystallites. This allows Sn-119, Sb-121, or Te-125 Mossbauer spectroscopy to be applied for studying the processes occurring at the solid-gas interface. Results of such studies, mainly devoted to the Cr2O3 antiferromagnetic substrate, were discussed, along with the prospects of searching appropriate substrate-compounds of other types.
Added by: Laurent Cournède |