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- W2063383127 abstract "Abstract Promoting effects of Gd and COH interaction in CO hydrogenation on Ni/Gd/SiO 2 catalysts have been investigated by means of kinetics, TPR, and FT-IR. The reaction rate of CO hydrogenation on Ni/Gd/SiO 2 was about five times faster than that on Ni/SiO 2 above 500 K. The IR band of side-on CO (NiCOGd) on Ni/Gd/SiO 2 was observed at 1600 cm −1 in addition to the bands of on-top (ca. 2040 cm −1 ) and bridge CO (ca. 1950 cm −1 ). All side-on CO easily dissociates, whereas most on-top Gd exists as partially reduced GdO x and the GdO x acts as a reservoir of hydrogen. A new peak due to GdH was observed at 1610 cm −1 under reaction conditions. The adsorbed hydrogen increased the amount of CO adsorbed on Ni/Gd/SiO 2 . Consequently, the easy dissociation of CO and the storage of hydrogen on the Ni/Gd/SiO 2 catalyst promoted the hydrogenation of CO to hydrocarbons (mainly methane)." @default.
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- W2063383127 date "1992-09-01" @default.
- W2063383127 modified "2023-10-02" @default.
- W2063383127 title "Two promoting effects of gadolinium on Ni/SiO2 catalysis for CO hydrogenation" @default.
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- W2063383127 doi "https://doi.org/10.1016/0021-9517(92)90156-c" @default.
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