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学科主题: 物理化学
题名: The Influence of Composite Support on the Performance of Mo/HBeta-Al2O3 Catalyst for Olefin Metathesis
作者: Li XJ(李秀杰) ;  Zhang WP(张维萍) ;  Liu SL(刘盛林) ;  Han XW(韩秀文) ;  Xu LY(徐龙伢) ;  Bao XH(包信和)
会议名称: The 14th International Congress on Catalysis
会议日期: 2008-7-13
出版日期: 2008-07-13
会议地点: 韩国
通讯作者: 张维萍 ;  包信和
部门归属: 五室
主办者: 韩国化学工程研究所
摘要: A series of Mo/HBeta-Al2O3 catalysts with different alumina contents were characterized and evaluated in the cross-metathesis of ethene and butene-2 to propene. Two-dimensional 27 Al MQ MAS NMR spectra demonstrate that dealumination occurs preferentially and specific T-sites of HBeta-Al2O3 composite support after introduction of Mo species. Hyperpolarized 129Xe NMR and TEM/SEM images indicate that Mo species are readily distributed in alumina rather than in HBeta zeolites, which may result in the proper Bronsted acidity, moderate dispersion state and valuence of Mo species as indicated by 1H MAS NMR, H2-TPR, UV-Rama and EPR spectra. These may be correlated to the high preformance of Mo/HBeta-Al2O3 catalysts in olefin metathesis.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/112920
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Li XJ,Zhang WP,Liu SL,et al. The Influence of Composite Support on the Performance of Mo/HBeta-Al2O3 Catalyst for Olefin Metathesis[C]. 见:The 14th International Congress on Catalysis. 韩国. 2008-7-13.
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