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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：工业催化. 能源化工. 物理化学
办公地点：西校区化工实验楼B525
电子邮箱：liganghg@dlut.edu.cn
Highly effective propylene epoxidation over TS-1/SiO2 hydrothermally treated
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论文类型：期刊论文
发表时间：2005-01-01
发表刊物：CHINESE CHEMICAL LETTERS
收录刊物：Scopus、SCIE、ISTIC
卷号：16
期号：1
页面范围：103-106
ISSN号：1001-8417
关键字：hydrothermal; TS-1/SiO2; propylene epoxidation; EPR; radical
摘要：The propylene epoxidation over TS-1/SiO2 catalyst hydrothermally treated was investigated. It was found by EPR characterization that two types of Ti (IV)-superoxide radicals, A (g(z=)2.0271; g(y)=2.0074; g(x)=2.0010) and B (g(z)=2.0247; g(y)=2.0074; g(x)= 2,0010), were observed for TS-1/SiO2. The superoxo species A converted to B after TS-1/SiO2 catalyst was hydrothermally treated. The results show that over TS-I/SiO2 catalyst hydrothermally treated at 170degreesC, about 95% conversion of H2O2 with above 94% PO selectivity is obtained during continuous running for 300 h under the conditions of reaction temperature 45degreesC, 0.5 h(-1)WHSV of propylene.