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- W2092942384 abstract "Infrared spectra for the surface species formed by the adsorption and interaction of C2H4, H2, and CO on silica-supported Co and Ni have been obtained. Initially ethyl groups are formed on the surfaces. When the gaseous mixture is heated to 100 °C over Co a new surface reaction is observed, namely the formation of surface complexes with a carboxylate structure. The mechanism of the interaction of chemisorbed CO and ethyl groups to form the surface carboxylate is discussed in terms of alkyl migration reactions which are similar to the homogeneous coordination complex reactions in hydroformylation catalysis. The surface species and alkyl migration reactions are proposed to also be important in CO methanation and Fischer-Tropsch synthesis. The infrared spectra of formic, acetic, and propionic acids adsorbed on Fe, Co, and Ni indicate the formation of surface carboxylate species. The asymmetric carboxylate stretch in the 1550 to 1600 cm−1 region shifts to lower frequencies as the number of carbon atoms in the adsorbed acid increases. The surface carboxylates are stable at temperatures up to 150 to 200 °C." @default.
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- W2092942384 date "1976-06-30" @default.
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- W2092942384 title "Adsorption and interaction of C2H4, H2, CO, and organic acids on Fe, Co, and Ni" @default.
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- W2092942384 doi "https://doi.org/10.1016/0021-9517(76)90299-2" @default.
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