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- W1593197046 abstract "Changes in adsorption sites on Rh/Al/sub 2/O/sub 3/ catalysts brought about by addition of sodium or by molybdena, was quantified by adsorption of hydrogen and of carbon monoxide. Fresh and used catalyst were tested. XRD was done to rule out the presence of crystalline compound formation. Infrared measurements showed that C-O bond is strengthened slightly by molybdena addition. Hence the enhanced activity of Rh/Mo/Al/sub 2/O/sub 3/ is caused neither by a greater number of CO sites nor by weakening of CO bond. The role of sodium in removing surface -OH groups, which in turn changes the distribution of different carbonyl species on the surface, was tested. Detailed kinetic data for Rh/Mo/Al/sub 2/O/sub 3/ having different amounts of molybdena were collected. Analysis of rate of formation for primary products were carried out. Activation energies for various reactions were calculated and its implication on the reaction scheme is discussed. The analysis of secondary reactions is underway. 6 figs., 4 tabs." @default.
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- W1593197046 date "1986-12-30" @default.
- W1593197046 modified "2023-09-26" @default.
- W1593197046 title "Trifunctional catalysts for conversion of syngas to alcohols: Tenth quarterly report for period December 1, 1986 to February 28, 1987. [CO chemisorbed on rhodium/alumina catalysts - one series modified by molybdena and the other by sodium addition]" @default.
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