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Oxidative addition of hydrogen in the “reduced” Mo/Al2O3 catalysts |
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| Authors: | AN Startsev OV Klimov MV Sidyakin OV Voroshina NA Tchashkova II Zakharov AV Pashis and AV Kalinkin |
| Institution: | (1) Boreskov Institute of Catalysis, Novosibirsk, Russia |
| Abstract: | An X-ray photoelectron spectroscopy study of Mo/Al2O3 catalysts prepared via MoV 2O4(C2O4)2(H2O)2]2- complexes showed that after heating the catalysts with hydrogen in the spectrometer chamber, the position of the Mo3d line shifted to higher values of binding energy. This shift is interpreted as oxidative addition of hydrogen to the surface Mo species. A similar phenomenon was observed for a CO treated catalyst. A temperature-programmed desorption study has shown that hydrogen is strongly bounded to Mo and can only be removed from the catalysts at temperatures as high as 500°C. This revised version was published online in June 2006 with corrections to the Cover Date. |
| Keywords: | temperature-programmed desorption Oxidative addition of hydrogen X-ray photoelectron spectroscopy Mo/Al2O3 catalysts |
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