1. Morphology and surface heterogeneities in synthetic goethites
- Author
-
Prélot, Bénédicte, Villiéras, Frédéric, Pelletier, Manuel, Gérard, Gilles, Gaboriaud, Fabien, Ehrhardt, Jean-Jacques, Perrone, Jane, Fedoroff, Michel, Jeanjean, Jeanine, Lefèvre, Gregory, Mazerolles, Léo, Pastol, Jean-Louis, Rouchaud, Jean-Claude, and Lindecker, Catherine
- Subjects
- *
ABSORPTION , *ANALYTICAL chemistry - 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. [Copyright &y& Elsevier]
- Published
- 2003
- Full Text
- View/download PDF