Catalytic epoxidation of alkenes with 30% H2O2 over Mn2+-exchanged zeolites
Catalytic epoxidation of alkenes with 30% H2O2 over Mn2+-exchanged zeolites
复制标题
催化%20环氧化%20of%20烯烃%20with%2030%%20H2O2%20over%20Mn2+-交换%20沸石
DOI:
10.1016/j.molcata.2010.02.019
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发表时间:
2010-05
期刊:
影响因子:
--
通讯作者:
周丹
中科院分区:
文献类型:
--
作者:
周丹
The Mn2+-exchanged zeolites Mn-Y, Mn-beta, Mn-A and Mn-ZSM-5 were prepared and used as heterogeneous catalysts for the liquid phase epoxidation of alkenes with aqueous hydrogen peroxide (30% H2O2) at 273–298K in the NaHCO3buffer system. The structures of catalysts were characterized by powder X-ray diffraction (XRD), UV–vis, ICP, BET and IR techniques. Mn-beta and Mn-Y exhibited the best recyclable activity for the epoxidation of styrene to achieve styrene conversions higher than 96.0 and 98.5mol%, respectively. Mn-beta showed higher activity for cyclohexene and norbornene but lower activity for α-methylstyrene, cinnamyl chloride, indene, cyclooctene and α-pinene than Mn-Y, which could be correlated with the difference of their pore sizes. However, these catalysts did not show any activity for the epoxidation of 1-octene with H2O2, possibly due to low electron density of double bonds of linear terminal alkenes.
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影响因子:
5.2
作者:
R. Kumar;A. Bhaumik
通讯作者:
R. Kumar;A. Bhaumik
影响因子:
5.2
作者:
S. Velu;Neepa Shah;T. Jyothi;S. Sivasanker
通讯作者:
S. Velu;Neepa Shah;T. Jyothi;S. Sivasanker
DOI:
10.1002/chin.200536229
发表时间:
2005-09
期刊:
ChemInform
影响因子:
--
作者:
Q. Xia;H.-Q. Ge;Chuping Ye;Zhong-Li Liu;K. Su
通讯作者:
Q. Xia;H.-Q. Ge;Chuping Ye;Zhong-Li Liu;K. Su
影响因子:
7.3
作者:
Lin, Kaifeng;Pescarmona, Paolo P.;Jacobs, Pierre A.
通讯作者:
Jacobs, Pierre A.
DOI:
10.1021/jp063957i
发表时间:
2006-10
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
M. Selvaraj;T. G. Lee
通讯作者:
M. Selvaraj;T. G. Lee