Abstract
NiO-ZrO2/SO -24 catalysts were prepared by coprecipitation from the solution of nickel chloride -zirconium oxychloride mixture followed by treating with H2SO4 NiO-ZrO2 alone without SO -24 was inactive as a catalyst for ethylene dimerization, but NiO-ZrO2/SO -24 was found to be very active even at room temperature. The high catalytic activity of NiO-ZrO2/SO -24 was closely correlated with the increase of acid strength by the inductive effect of sulfate ion adsorbed on NiO-ZrO2. The decrease of catalytic activity above 150‡C of evacuation temperature was explained in terms of the structural change of catalyst from amorphous phase to crystalline, and the sintering.
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Sohn, J.R., Kim, H.W. & Kim, J.T. Preparation of NiO-ZrO2/SO -24 catalyst and its catalytic activity for ethylene dimerization. Korean J. Chem. Eng. 4, 1–7 (1987). https://doi.org/10.1007/BF02698092
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DOI: https://doi.org/10.1007/BF02698092