Morphology and surface heterogeneities in synthetic goethites
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Updated: Aug 15, 2026

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)
Published on: December 16, 2019
Bénédicte Prélot1, Frédéric Villiéras, Manuel Pelletier
1Laboratoire Environnement et Minéralurgie, UMR 7569 CNRS/INPL, BP40, 54501 Vandoeuvre-lès-Nancy Cedex, France.
Abstract:
In the framework on a study of the acido-basic and sorption properties of iron oxides, a thorough characterization of two types of goethite powders was performed in several laboratories joined in a common project. Chemical analysis by ICPAES; high-resolution SEM, TEM, and AFM observations; XRD with line width analysis; and argon and nitrogen sorption isotherms were used for that purpose. The main crystallographic faces of goethite particles could be identified as {001}, {101}, and {121}, and their abundance correlated with the distribution of low-pressure argon adsorption local isotherms. These results will be very useful for further studies on the relationship between surface reactivity in aqueous solution and orientation of solid surfaces.
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