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|Type:||Artigo de periódico|
|Title:||Hydrogenation And Structural Changes In Potassium Dithioferrate Under Heat Treatment|
Freiria Filho A.R.
|Abstract:||Polycrystalline potassium dithioferrate (KFeS2) was studied using X-ray diffraction, to detect structural changes occurring in the compound when submitted to heat treatment at a temperature of 500° C under vacuum and in a hydrogen atmosphere. The changes observed in samples treated under vacuum and in a hydrogen atmosphere were similar, suggesting the presence of a new unstable phase coexisting with that of the untreated sample, and that the structural transformation observed is supposed to be primarily induced by the high-temperature treatment. The structural changes and absorbed hydrogen are correlated with previous Mössbauer and EPR experiments on hydrogenated KFeS2 at 500° C. © 1988 Chapman and Hall Ltd.|
|Editor:||Kluwer Academic Publishers|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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