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Cobalt Oxide Surface Chemistry: The Interaction Of Coo(1 0 0), Co3O4(1 1 0), And Co3O4(1 1 1) With Oxygen And Water, Sarah C. Petitto, Erin M. Marsh, Gregory A. Carson, Marjorie Langell

Marjorie A. Langell Publications

Cobalt oxides comprise two readily accessible cation oxidation states: Co²⁺ and Co³⁺, which are thermodynamically competitive under common ambient conditions, and redox mechanisms connecting the two states are largely responsible for their success in partial oxidation catalysis. In our studies, CoO(1 0 0), Co₃O₄(1 1 0), and Co₃O₄(1 1 1) single crystal substrates have been investigated with X-ray photoelectron spectroscopy (XPS), high-resolution electron energy loss spectroscopy (HREELS), and low energy electron diffraction (LEED) for their surface reactivity toward O₃ and H₂O and for their stability under …