化工进展2011，Vol.30Issue(4)：771-776,6.
微乳液法制备Pt/Al2O3催化剂及其催化氯代硝基苯选择加氢活性
Preparation of Pt/Al2O3 catalyst by microemulsion and its activity in selective hydrogenation of chloronitrobenzene
宋华 1汪淑影 1李锋 1李瑞峰2
作者信息
- 1. 东北石油大学化学化工学院,黑龙江大庆,163318
- 2. 大庆化工研究中心,黑龙江大庆,163714
- 折叠
摘要
Abstract
Pt/A12O3 catalyst was prepared from CTAB/butarol/cyclohexane/H2PtCl6 microemulsion,with hydrazine as reductant and A12O3 as support. The effect of composition of microemulsion on the activity for selective hydrogenation over Pt/A12O3 catalysts was studied by using o-chloronitrobenzene selective hydrogenation as a probe reaction. The support and catalyst were characterized by XRD,XPS, IR, TEM and EDS. The results showed that the Pt/Al2O3 catalyst made from the microemulsion with CTAB: butarol: cyclohexane mass ratio of 9: 21: 70 and H2PtCl6 concentration of 3.6％ exhibited the highest activity in selective hydrogenation of o-CNB. Pt particle size was about 5 nm, and the electronic effect between Pt particle and carrier was not significant. It was also found that Pt/A12O3 catalyst also exhibited higher activity for the hydrogenation of rn-chloronitrobenzene and p-chloronitrobenzene with different substituted positions.关键词
微乳液/铂/氧化铝/氟代硝基苯/选择加氢Key words
microemulsion/ Pt/A12O3/ chloronitrobenzene/ selective hydrogenation分类
化学化工引用本文复制引用
宋华,汪淑影,李锋,李瑞峰..微乳液法制备Pt/Al2O3催化剂及其催化氯代硝基苯选择加氢活性[J].化工进展,2011,30(4):771-776,6.
