Jagannathan, R. ; Mathur, H. B. (1969) Mossbauer spectroscopic investigation of the valency states of iron formed in the decay of 57Co2+ in Co[Cr2]O4 and Co[Cr2]S4 Journal of Inorganic and Nuclear Chemistry, 31 (11). pp. 3363-3373. ISSN 0022-1902
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002219...
Related URL: http://dx.doi.org/10.1016/0022-1902(69)80319-2
Abstract
The Mossbauer spectra of sources of 57Co in the form of spinels Co [Cr2] O4 and Co [Cr2]S4, matched against a 92 per cent 57Fe-enriched K4Fe(CN)6. 3H2O absorber have been studied from -80°C to 362°C. 57Co[Cr2]O4 source gave a complex spectrum which was analyzed to yield three peaks of different intensities and attributed to the presence of Fe4+, Fe3+ and Fe2+ states. A similar study with 57Co[Cr2]S4 showed the presence of the Fe3+ and Fe2+ states in the Mossbauer spectrum. The stabilization of the Fe4+ and Fe3+ states in addition to the expected Fe2+ state has been attributed to the presence of cation vacancies in the source lattice.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 31420 |
| Deposited On: | 05 Mar 2011 05:31 |
| Last Modified: | 09 Jun 2011 08:17 |
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