稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2013年
10期
1023-1028
,共6页
孙海杰%陈凌霞%李帅辉%江厚兵%张元馨%任保增%刘仲毅%刘仲毅
孫海傑%陳凌霞%李帥輝%江厚兵%張元馨%任保增%劉仲毅%劉仲毅
손해걸%진릉하%리수휘%강후병%장원형%임보증%류중의%류중의
hydrogenation%benzene%cyclohexene%Ru%CeO2%rare earths
The monometallic Ru catalysts with the CeO2 without calcination and ZnSO4 as co-modifiers gave a cyclohexene yield of 58.5% at the optimum nominal CeO2/Ru molar ratio of 0.15. Moreover, this catalyst had a good stability. The chemisorbed (Zn(OH)2)3(ZnSO4)(H2O)3 salt on Ru surface, which was formed by the CeO2 reacting with ZnSO4, created the new Ru active sites suitable for the formation of cyclohexene and improved the selectivity to cyclohexene. In addition, the Zn2+in the aqueous phase could form a stable complex with cyclohexene, stabilizing the cyclohexene in the liquid phase and improving the selectivity to cyclo-hexene. The calcination treatment of CeO2 was not beneficial for the enhancement of the selectivity to cyclohexene since it is difficult for the CeO2 calcinated to react with ZnSO4 to form the (Zn(OH)2)3(ZnSO4)(H2O)3 salt.
