Adsorption of Ethylene Glycol Vapor on α-Al 2 O 3 (0001) and Amorphous SiO 2 Surfaces: Observation of Molecular Orientation and Surface Hydroxyl Groups as Sorption Sites

Sorption of Co(II) on Metal Oxide Surfac

Sorption of Co(II) on Metal Oxide Surfaces: II. Identification of Co(II)(aq) Adsorption Sites on the (0001) and (1102) Surfaces of α-Al2O3 by Grazing-Incidence XAFS Spectroscopy

✍ Steven N Towle; John R Bargar; Gordon E Brown Jr.; George A Parks 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 180 KB

We have characterized the adsorption of Co(II) on the (0001) and (11 02) surfaces of ␣-Al 2 O 3 single crystals under ambient conditions using polarization-dependent grazing-incidence X-ray absorption fine structure spectroscopy, in combination with bond valence modeling. Co(II) ions were found to b