Preparation of a Ru/Al2O3 catalyst from Ru3(CO)12 infrared and XPS study |
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| Authors: | D K Chakrabarty A Joshi S Unnikrishnan and P D Prabhawalkar |
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| Institution: | (1) Solid State Laboratory, Chemistry Department, Indian Institute of Technology, 400076 Bombay, India;(2) Present address: RSIC, I.I.T., 400076 Bombay |
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| Abstract: | A supported ruthenium catalyst on alumina prepared from Ru3(CO)12 has been studied by infrared and X-ray photoelectron spectroscopy (XPS). The triatomic cluster is retained on the support but breaks down at 150°C. Complete elimination of the carbonyl groups requires heating at 350°C under vacuum. XPS studies show that the decomposed catalyst does not change on further reduction in H2 at 400°C. The ruthenium atoms remain trapped within the pores of the support.
               Al2O3,   Ru3(CO)12,           (XPS).    , 150°C .    350°C . XPS ,   H2 400°C .  .
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