Journal ArticleDOI
The single-crystal Raman spectra of nearly opaque materials. Iron(III) oxide and chromium(III) oxide
I. R. Beattie,T. R. Gilson +1 more
TLDR
In this article, a technique for studying orientation effects on nearly opaque single crystals with laser Raman spectroscopy is described in detail, and the instrument used in these studies is a Spex monochromator.Abstract:
A technique for studying orientation effects on nearly opaque single crystals with laser Raman spectroscopy is described in detail. The instrument used in these studies is a Spex monochromator. The scattering equations derived are applied to a study of iron(III) oxide and chromium(III) oxide.read more
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Journal ArticleDOI
Raman spectroscopic study of magnetite (FeFe2O4): a new assignment for the vibrational spectrum
Olga Shebanova,Peter Lazor +1 more
TL;DR: Raman spectroscopic study on magnetite (FeFeFe2O4): a new assignment for the vibrational spectrum was presented in this paper, where the authors used the Raman spectroglobalisation of magnetite.
Journal ArticleDOI
Visible light-induced water oxidation on mesoscopic α-Fe2O3 films made by ultrasonic spray pyrolysis
Alexis Duret,Michael Grätzel +1 more
TL;DR: In this article, the mesoscopic α-Fe2O3 layers produced by USP consist mainly of 100 nm-sized platelets with a thickness of 5−10 nm.
Journal ArticleDOI
Micro‐Raman investigation of iron oxide films and powders produced by sol–gel syntheses
TL;DR: In this paper, the micro-Raman spectra of hematite, magnetite and other iron oxides were compared with literature data and compared with a Stokes-Anti-Stokes procedure was used to control the local temperature during the measurement and also for calibration of the wavenumbers.
Journal ArticleDOI
The long term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century
TL;DR: In this paper, the inner stable and protective rust layer which covered the surface of weathering steel mainly consists of nano-particles of α-FeOOH containing a considerable amount of Cr.
Journal ArticleDOI
Size-dependent structural transformations of hematite nanoparticles. 1. Phase transition.
TL;DR: A general model is developed that considers spinel defects and absorbed/adsorbed species as dominant controls on structural changes with particle size in hematite nanoparticles, including solid-state phase transitions, and supports the existence of intermediate phases during dehydration of goethite.