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- W1567331623 abstract "SUMMARY In this work the preparation of zirconium oxides designed for catalyst supports was studied. The platinum promoted sulfated zirconia catalyst is prepared using microemulsion systems (anionic and nonionic) and precipitation-impregnation procedures. Catalyst particles were characterized in detail using X-ray, BET, SEM, EDX and FT-IR. Zirconia particles prepared in microemulsion have a pure tetragonal structure and are smaller than precipitated particles. Infrared spectra show that the sulfate species are more homogeneously distributed over the zirconia surfaces when the sulfating process is carried out in the microemulsion, than when the sulfating is performed by impregnation. Catalytic tests for isomerization reactions of hexanes show that the supports prepared by the microemulsion method have higher selectivity towards isomers but lower activity than the precipitation-impregnation method supports. Platinum promoted catalysts prepared in microemulsions show higher selectivity and slightly lower activity than those prepared by impregnation in a water solution." @default.
- W1567331623 created "2016-06-24" @default.
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- W1567331623 date "1998-01-01" @default.
- W1567331623 modified "2023-10-01" @default.
- W1567331623 title "Preparation of zirconium oxide particles for catalyst supports by the microemulsion technique. Characterization by X-Ray diffraction, BET, SEM-EDX, FT-IR and catalytic tests." @default.
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- W1567331623 doi "https://doi.org/10.1016/s0167-2991(98)80216-4" @default.
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