| AVS 55th International Symposium & Exhibition | |
| Surface Science | Tuesday Sessions |
| Session SS-TuP |
| Session: | Surface Science Poster Session |
| Presenter: | J.C. Lofaro, Jr., Stony Brook University |
| Authors: | J.C. Lofaro, Jr., Stony Brook University M.G. White, Brookhaven National Laboratory and Stony Brook University |
| Correspondent: | Click to Email |
Copper catalysts supported on metal oxides have been used as a heterogeneous catalysts in industrial setting for various chemical processes.1,2 Recent works have shown that copper nanoparticles supported on metal oxides (ZnO, CeO2, TiO2) have higher activity for the water gas shift reaction (WGSR) as well as other chemical processes.3,4 Here, copper nanoparticles are deposited on a TiO2(110) single crystal using a homemade thermal evaporator, which is used as a model system. Auger electron spectroscopy (AES) is used to characterize the copper coverage and temperature programmed desorption (TPD) is used to probe the clusters reactivity and thermal stability. Copper coverages ranging from 0.25ML to 10ML are investigated. Probe molecules including carbon monoxide and water since those are the starting points for the WGSR, which copper is known to catalyze at high temperatures.5
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4 X. Zhao, J. A. Rodriguez, J. Hrbek, M. Pérez, Surface Science, 2005 , 600, 229.
5 J. Nakamura, J. M. Campbell, C. T. Campbell, J. Chem. Soc. Faraday Trans., 1990, 86, 2725.