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NiSO_4/γ-Al_2O_3的酸性强烈影响其催化丙烯齐聚的活性。CO中毒实验和ESR表征证明,在反应过程中有Ni~+产生,并成为反应的活性中心。推测NiSO_4/γ-Al_2O_3上丙烯齐聚反应除通过酸中心上酸催化进行外,还通过Ni~+上配位催化进行。
The acidity of NiSO_4 / γ-Al_2O_3 strongly influences its catalytic activity for the oligomerization of propylene. CO poisoning experiments and ESR characterization showed that Ni ~ + was produced during the reaction and became the active center of the reaction. It is speculated that the oligomerization of propylene on NiSO_4 / γ-Al_2O_3 can be catalyzed by acidic sites on Ni + and catalyzed by Ni ~ +.