期刊
SCIENCE
卷 348, 期 6233, 页码 421-424出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaa2260
关键词
-
资金
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0000776, DE-FG02-03ER15387]
- Center for Catalytic Hydrocarbon Functionalization, an Energy Frontier Research Center [DE-SC0001298]
- AES Corporation Graduate Fellowship in Energy Research
Rising global demand for fossil resources has prompted a renewed interest in catalyst technologies that increase the efficiency of conversion of hydrocarbons from petroleum and natural gas to higher-value materials. Styrene is currently produced from benzene and ethylene through the intermediacy of ethylbenzene, which must be dehydrogenated in a separate step. The direct oxidative conversion of benzene and ethylene to styrene could provide a more efficient route, but achieving high selectivity and yield for this reaction has been challenging. Here, we report that the Rh catalyst ((Fl)DAB)Rh(TFA)(eta(2)-C2H4) [(Fl)DAB is N,N'-bis(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; TFA is trifluoroacetate] converts benzene, ethylene, and Cu(II) acetate to styrene, Cu(I) acetate, and acetic acid with 100% selectivity and yields >= 95%. Turnover numbers >800 have been demonstrated, with catalyst stability up to 96 hours.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据