Chemical reduction of hematite by sodium borohydride.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorResende, Valdirene Gonzaga de-
Autor(es): dc.creatorCosta, Geraldo Magela da-
Autor(es): dc.creatorGrave, Eddy De-
Autor(es): dc.creatorDantas, Lucien-
Data de aceite: dc.date.accessioned2025-08-21T15:10:22Z-
Data de disponibilização: dc.date.available2025-08-21T15:10:22Z-
Data de envio: dc.date.issued2017-05-30-
Data de envio: dc.date.issued2017-05-30-
Data de envio: dc.date.issued2005-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/7815-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s10751-006-9254-0-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s10751-006-9254-0-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1004306-
Descrição: dc.descriptionWell-crystallized hematite was suspended in water and treated at roomtemperature (RT) with sodium borohydride. The product of the reaction is a highly magnetic black powder, which is stable at RT. The NaBH4 treatment converts about half of the hematite to an amorphous Fe–B alloy and to a small fraction of sub-micron sized, amorphous metallic-Fe nodules. Heating at 400°C of this composite has resulted in the crystallization and/or oxidation of more than half of the amorphous Fe–B phase to α-Fe and Fe3O4 and B2O3, respectively. After treatment at 800°C, the metallic Fe and the amorphous Fe–B have completely vanished, and the resulting product consists of hematite and FeBO3 embedded in the matrix of α-Fe2O3.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectFe–B alloy-
Palavras-chave: dc.subjectHematite-
Palavras-chave: dc.subjectSodium borohydride-
Palavras-chave: dc.subjectMössbauer-
Título: dc.titleChemical reduction of hematite by sodium borohydride.-
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