摘要
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 catalytic activity of NiSO_4/γ-Al_2O_3 in propene oligomerization is greatly influenced by the acidity of the catalyst used. It was found that the acid sites related to propene oligomerization are only those of H_o≤-3.0. The generation of Ni^+ and its role as an active site in the oligomerization were demonstrated by the electronspin resonance method (ESR) and CO poisoning. The oligomerization is believed to be proceeded by coordination catalysis over Ni^+ as well as acid catalysis over the acid sites of the supported catalyst.
出处
《应用化学》
CAS
CSCD
北大核心
1993年第6期23-26,共4页
Chinese Journal of Applied Chemistry
关键词
丙烯
齐聚反应
硫酸镍
配位
催化
propene,oligomerization, nickel sulfate ,acid catalysis ,coordination catalysis
