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- W2367698832 abstract "Effect of impregnation solvents on the catalytic properties of Rh-Mn-Li/SiO2 catalyst was investigated by means of the following techniques: CO hydrogenation reaction,temperature-programmed desorption of absorbed CO(CO-TPD),temperature-programmed surface reaction(TPSR) and X-ray photoelectron spectroscopy(XPS).The results showed that the choice of impregnation solvents had a striking influence on the activity and selectivity of Rh-Mn-Li/SiO2 catalyst.The catalyst prepared with ethanol as solvent displayed 686.1 g/(kg·h) of space time yield(STY) of C2-oxygenates and 73.8% of selectivity towards C2-oxygenates.The catalysts prepared with methanol or i-propanol as solvent displayed higher STY of C2-oxygenates,but selectivities towards C2-oxygenates were lower.Also,the catalyst prepared with deionized water as solvent exhibited higher selectivity towards C2-oxygenates,but lower STY of C2 oxygenates.It was proposed that the enrichment of Rh,Mn et al.and the formation of more active sites on the catalyst surface prepared using lower-carbon alcohols as impregnation solvents are responsible for the higher STY of C2-oxygenates.In addition,the selectivities towards C2-oxygenates were well correlated with the proportion of absorbed non-dissociatively CO.The catalyst prepared with deionized water or ethanol as solvent had higher proportion of absorbed non-dissociatively CO and thus displayed higher selectivity towards C2-oxygenates." @default.
- W2367698832 created "2016-06-24" @default.
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- W2367698832 date "2007-01-01" @default.
- W2367698832 modified "2023-09-23" @default.
- W2367698832 title "Effect of Impregnation Solvents on CO Hydrogenation over Rh-Mn-Li/SiO_2 Catalysts" @default.
- W2367698832 hasPublicationYear "2007" @default.
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