Benzene adsorption and oxidation on Ir(1 1 1) |
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| Authors: | CJ Weststrate JW Bakker W Ludwig |
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| Institution: | a Leids instituut voor chemisch onderzoek, Universiteit Leiden, P.O. Box 9502, Einsteinweg 55, 2333 CC Leiden, The Netherlands
b Technische Universiteit Eindhoven, Schuit Institute of Catalysis, P.O. Box 5600 MB, Eindhoven, The Netherlands |
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| Abstract: | Adsorption, decomposition and oxidation of benzene on Ir(1 1 1) was studied by high resolution (synchrotron) XPS, temperature programmed desorption and low energy electron diffraction. Molecular adsorption of benzene on Ir(1 1 1) is observed between 170 K and 350 K. Above this temperature both desorption and decomposition of benzene take place. An ordered adsorbate structure was observed upon adsorption around 335 K. Decomposition involves C-C bond breaking as the formation of CHad is observed. The presence of a saturated Oad layer (0.5 ML) weakens molecular benzene adsorption and suppresses decomposition. |
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| Keywords: | Benzene Iridium Ir(1 1 1) Benzene adsorption Benzene decomposition Benzene oxidation |
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