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Structural Model of Al13-Pillared Montmorillonite
Alumina Pillaring Computer Simulation Keggin Pillaring Montmorillonite Structural Model Transmission Electron Microscopy
2011/12/2
Abstract: Alumina-pillared montmorillonite is prepared by intercalation of polyoxyhydroxy aluminum cations (Al137+) of a natural montmorillonite from Dimitrovgrad, Bulgaria. Transmission electron micr...
Surface Structural Model for Ferrihydrite
EXAFS Ferrihydrite Hydrous Ferric Oxide XANES X-ray Absorption Spectroscopy
2011/12/22
Abstract: A structural model for the geometry of Fe(III) octahedra near the surface of finely divided ferrihydrite was elaborated based on the bond梫alence theory and by considering the interaction of ...
A Structural Model for Natural Siliceous Ferrihydrite
Domain size Ferrihydrite Low-angle X-ray diffraction (LAXRD) Particle size Silicate Structure X-ray diffraction (XRD)
2011/12/31
X-ray diffraction of four natural samples of ferrihydrite indicates the presence of crystalline domains within the primary particles. The average diameter of the primary particles (determined from low...
New Data and a Revised Structural Model for Ferrihydrite
Crystal structure Ferrihydrite Iron Magnetic susceptibility Surface area Synthesis Thermal analysis Transmission electron microscopy X-ray absorption edge spectra
2012/1/9
Synthetic 2-line and 6-line ferrihydrite samples prepared from ferric nitrate solutions have the bulk compositions Fe4(O,OH,H20)12 and Fe4.6(O,OH,H2O)12, respectively. The composition depends on cryst...
Structural Model for Benzidine-Vermiculite
Benzidine Hydrogen bonding Intercalation Vermiculite X-ray diffraction
2012/2/7
A combination of X-ray diffraction, infrared, and chemical data has established that the ion exchange of vermiculite with singly charged benzidine cations in an aqueous solution at pH 1.6 results in a...