“…However, the uranyl-carbonato ternary surface complex was not confined to the alkaline pH range but predominant even down to pH 4.5. Crystal truncation rod diffraction, grazing incidence EXAFS, and bond-valance calculations have also identified the presence of a binuclear, bidentate uranyl-carbonate ternary complex on hematite (Catalano et al, 2005). In contrast, in situ attenuated total reflection-infrared spectroscopy detected a binary, inner-sphere, multidentate surface complex of uranyl on hematite (Lefèvre et al, 2006).…”