Isotope exchange studies of the oxidation and reduction of SrTiO3 single crystal surfaces by water and hydrogen |
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| Authors: | Salvador Ferrer GA Somorjai |
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| Institution: | Materials and Molecular Research Division, Lawrence Berkeley Laboratory, and University of California, Department of Chemistry, Berkeley, California 94720, USA |
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| Abstract: | Thermal desorption studies of chemisorbed D2 and D2O on a reduced SrTiO3(111) surface reveal that D2 causes the reduction of the crystal, whereas D2O causes its oxidation. Thermal desorption of H218O indicates that there is a 15% exchange between the oxygen in the adsorbed water molecules and the lattice oxygen. |
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