TY - JOUR
T1 - Catalytic properties of Fe/SiO2 catalysts prepared using microemulsion for CO hydrogenation
AU - Hayashi, Hiroki
AU - Chen, Li Zhe
AU - Tago, Teruoki
AU - Kishida, Masahiro
AU - Wakabayashi, Katsuhiko
PY - 2002/5/10
Y1 - 2002/5/10
N2 - The Fe/SiO2 catalysts prepared using water-in-oil (w/o) microemulsions exhibited more than two-fold CO conversions as compared to the impregnated catalysts in CO hydrogenation. The catalysts produced the C2+ oxygenates with an extremely high selectivity of <40 C mol%, while the impregnated catalysts produced mainly hydrocarbons. The TPR results showed that Fe particles in the catalysts prepared using w/o microemulsion were difficult to reduce and that a considerable amount of FeO remained in the catalyst even after the reduction with H2 at 873 K for 10 h. The superior activity of the catalysts for the C2+ oxygenates synthesis was attributed to the existence of the stable Fe oxide species under the reaction condition.
AB - The Fe/SiO2 catalysts prepared using water-in-oil (w/o) microemulsions exhibited more than two-fold CO conversions as compared to the impregnated catalysts in CO hydrogenation. The catalysts produced the C2+ oxygenates with an extremely high selectivity of <40 C mol%, while the impregnated catalysts produced mainly hydrocarbons. The TPR results showed that Fe particles in the catalysts prepared using w/o microemulsion were difficult to reduce and that a considerable amount of FeO remained in the catalyst even after the reduction with H2 at 873 K for 10 h. The superior activity of the catalysts for the C2+ oxygenates synthesis was attributed to the existence of the stable Fe oxide species under the reaction condition.
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U2 - 10.1016/S0926-860X(01)00948-6
DO - 10.1016/S0926-860X(01)00948-6
M3 - Article
AN - SCOPUS:0037052696
VL - 231
SP - 81
EP - 89
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
IS - 1-2
ER -