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Pregled bibliografske jedinice broj: 316095

Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions


Žic, Mark; Ristić, Mira; Musić, Svetozar
Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions // Journal of alloys and compounds, 464 (2008), 1-2; 81-88 doi:10.1016/j.jallcom.2007.10.014 (međunarodna recenzija, članak, znanstveni)


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Naslov
Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions

Autori
Žic, Mark ; Ristić, Mira ; Musić, Svetozar

Izvornik
Journal of alloys and compounds (0925-8388) 464 (2008), 1-2; 81-88

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
β -FeOOH ; α -Fe2O3 ; Mössbauer spectroscopy ; FT-IR spectroscopy ; XRD ; FE-SEM

Sažetak
The hydrothermal transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions, obtained by partial neutralization of concentrated FeCl3 solution with concentrated NaOH solution, was investigated. Mössbauer spectroscopy was used for the phase analysis of samples, as well as the complementary techniques XRD and FT-IR. The size and morphology of the particles were inspected with FE-SEM. At the beginning of the crystallization process very fine β -FeOOH particles were formed, which transformed to α -Fe2O3 (end-product) with a prolonged time of heating. A small amount or traces of α -FeOOH as an intermediate phase were detected by FT-IR and FE-SEM. Gradual formation of α -Fe2O3 double spheres with ring was monitored. Double spheres with ring were formed by the aggregation mechanism. The orientation effect of α -Fe2O3 subunits in double spheres with ring was observed. α -Fe2O3 double spheres with ring also showed two narrow particle size distributions.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
098-0982904-2952 - Sinteza i mikrostruktura metalnih oksida i oksidnih stakala (Ristić, Mira, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Mira Ristić (autor)

Avatar Url Svetozar Musić (autor)

Avatar Url Mark Žic (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com doi.org

Citiraj ovu publikaciju:

Žic, Mark; Ristić, Mira; Musić, Svetozar
Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions // Journal of alloys and compounds, 464 (2008), 1-2; 81-88 doi:10.1016/j.jallcom.2007.10.014 (međunarodna recenzija, članak, znanstveni)
Žic, M., Ristić, M. & Musić, S. (2008) Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions. Journal of alloys and compounds, 464 (1-2), 81-88 doi:10.1016/j.jallcom.2007.10.014.
@article{article, author = {\v{Z}ic, Mark and Risti\'{c}, Mira and Musi\'{c}, Svetozar}, year = {2008}, pages = {81-88}, DOI = {10.1016/j.jallcom.2007.10.014}, keywords = {β -FeOOH, α -Fe2O3, M\"{o}ssbauer spectroscopy, FT-IR spectroscopy, XRD, FE-SEM}, journal = {Journal of alloys and compounds}, doi = {10.1016/j.jallcom.2007.10.014}, volume = {464}, number = {1-2}, issn = {0925-8388}, title = {Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions}, keyword = {β -FeOOH, α -Fe2O3, M\"{o}ssbauer spectroscopy, FT-IR spectroscopy, XRD, FE-SEM} }
@article{article, author = {\v{Z}ic, Mark and Risti\'{c}, Mira and Musi\'{c}, Svetozar}, year = {2008}, pages = {81-88}, DOI = {10.1016/j.jallcom.2007.10.014}, keywords = {β -FeOOH, α -Fe2O3, M\"{o}ssbauer spectroscopy, FT-IR spectroscopy, XRD, FE-SEM}, journal = {Journal of alloys and compounds}, doi = {10.1016/j.jallcom.2007.10.014}, volume = {464}, number = {1-2}, issn = {0925-8388}, title = {Microstructural changes in particles detected during the transformation from β -FeOOH to α -Fe2O3 in dense aqueous suspensions}, keyword = {β -FeOOH, α -Fe2O3, M\"{o}ssbauer spectroscopy, FT-IR spectroscopy, XRD, FE-SEM} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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