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- W288075065 abstract "Changes in the chemical state of Rh and Mo, and the dispersion of Mo due to different treatments and Mo loadings was studied by X-Ray Phototelectron Spectroscopy. The results show well dispersed Mo on Mo/Al/sub 2/O/sub 3/ and aggregated Mo on Rh-Mo/Al/sub 2/O/sub 3/. The crystallite size of Mo-oxide particles in Rh-Mo/Al/sub 2/O/sub 3/ was estimated using Kerkhof and Moulijn method to be approx. 20A. Electron Spin Resonance Spectroscopy measurements on catalysts show presence of paramagnetic Mo species on reduction and corroborate XPS results. Mo and Rh loadings were determined by X-Ray Fluorescence. Ethylene hydrogenation was carried out on Rh/Al/sub 2/O/sub 3/, Mo/Al/sub 2/O/sub 3/ and Rh-Mo/Al/sub 2/O/sub 3/ in the presence and in the absence of carbon monoxide in the gas phase. Carbon monoxide in the gas phase acts as an ON/OFF switch for ethylene hydrogenation on Rh/Al/sub 2/O/sub 3/. Rh-Mo/Al/sub 2/O/sub 3/ acts like Rh/Al/sub 2/O/sub 3/ for ethylene hydrogenation in the absence of carbon monoxide and like Mo/Al/sub 2/O/sub 3/ in the presence of carbon monoxide." @default.
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- W288075065 date "1987-06-25" @default.
- W288075065 modified "2023-09-26" @default.
- W288075065 title "Trifunctional catalysts for conversion of syngas to alcohols: Eleventh quarterly report for period March 1, 1987 to May 31, 1987" @default.
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