Citation: Nicoud, Sarah; Huv\'e, Marielle; Hernandez, Olivier; Pautrat, Alain; Duttine, Mathieu; Wattiaux, Alain; Colin, Claire; Kabbour, Houria; Mentr\'e, Olivier (2017). Comprehensive Study of Oxygen Storage in YbFe2O4+x (x ≤ 0.5): Unprecedented Coexistence of FeOn Polyhedra in One Single Phase.. Journal of the American Chemical Society, , pp. -.