Mechanism of reduction in hydrogen atmosphere and thermal transformation of synthetic ferrihydrite nanoparticles

[Display omitted] •Magnetic measurements used to study thermal transformation of ferrihydrite.•Reduction mechanisms of ferrihydrite were monitored by TPR, MS, and in-situ XRD.•Nanocrystalline Fe was produced by the reducing ferrihydrite in H2.•The presence of SiO2 in ferrihydrite alters the reductio...

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Veröffentlicht in:	Thermochimica acta 2015-01, Vol.599, p.73-83
Hauptverfasser:	Masina, C.J., Neethling, J.H., Olivier, E.J., Ferg, E., Manzini, S., Lodya, L., Mohlala, P., Ngobeni, M.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Atmospheres Ferrihydrite Iron Iron oxides Magnetization Mössbauer spectroscopy Phase transformations Powder diffraction Reduction Silicon dioxide Temperature programmed reduction Thermal transformation Thermal transformations Transformations
Online-Zugang:	Volltext
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