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- W2073344706 abstract "Abstract Highly dispersed FeMn bimetallic particles were obtained on a high-surface-area amorphous carbon black support using FeMn and KFeMn carbonyl clusters. These catalysts were characterized by hydrogen adsorption and by CO chemisorption at 195 and 300 K, and their kinetic behavior for CO hydrogenation was studied at 1 atm in a differential, plug-flow microreactor. The K-promoted clusters with stoichiometries of KMnFe and KMnFe2 gave 85–90 wt% ethylene, propylene, and butene with methane as the only other detectable hydrocarbon product. The KFe3 cluster also had a high selectivity to olefins but showed somewhat more chain growth. The nonpromoted MnFe catalysts with Fe Mn = 2 , prepared from either stoichiometric mixed-metal carbonyl clusters or coimpregnation of the separate Fe and Mn carbonyl clusters, also had a high selectivity to light olefins; however, this selectivity was strongly dependent upon the pretreatment. The properties of the FeMn clusters without K is consistent with a proposed model in which a surface spinel, (Fel-yMny)3O4, plays a principal role in providing high selectivity to light olefins." @default.
- W2073344706 created "2016-06-24" @default.
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- W2073344706 date "1987-02-01" @default.
- W2073344706 modified "2023-09-26" @default.
- W2073344706 title "Carbon-supported Fe$z.sbnd;Mn and K$z.sbnd;Fe$z.sbnd;Mn clusters for the synthesis of C2$z.sbnd;C4 olefins from CO and H2 I. Chemisorption and catalytic behavior" @default.
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- W2073344706 doi "https://doi.org/10.1016/0021-9517(87)90136-9" @default.
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