Point defect concentrations in surface layers of binary oxides

Water uptake kinetics and electrical transport in BaCe0.6Zr0.2Y0.1M0.1O3−δ (M = Tb, Pr, Fe) protonic conductors

“…The process of oxygen incorporation into oxide materials is complex and can be described as a sequence of several most probable steps. 36 The incorporation of molecular oxygen into the crystal lattice of the oxide is a multistep reaction in which chemisorption, electron transfer, oxygen bond dissociation, and incorporation of atomic oxygen species into the structure take place. First, the oxygen molecule in the gas phase O 2(g) is adsorbed by chemisorption on a vacant adsorption site on the surface of the material in a form O 2(ads) :O 2(g) → O 2(ads) .…”