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题名: Template-Synthesized Porous Silicon Carbide as an Effective Host for Zeolite Catalysts
作者: Gu, Lijun1;  Ma, Ding1;  Yao, Songdong1;  Liu, Xiumei1;  Han, Xiuwen1;  Shen, Wenjie1;  Bao, Xinhe1
通讯作者: 马丁 ;  包信和
关键词: dehydroaromatization ;  heterogeneous catalysis ;  silicon carbide ;  template synthesis ;  zeolites
刊名: CHEMISTRY-A EUROPEAN JOURNAL
发表日期: 2009
DOI: 10.1002/chem.200901982
卷: 15, 期:48, 页:13449-13455
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 502,501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A facile method has been developed for the fabrication of porous silicon carbide (SiC) by means of sintering a mixture of SiC powder and carbon pellets at a relatively lower temperature, that is, 1450 degrees C, in air. The pore density and the total pore volume of the resulting porous SiC could be tuned by changing the initial SiC/C weight ratio. The structure evolution and the associated property changes during the preparation were examined through X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, (29)Si magic-angle spinning (MAS) NMR spectroscopy, and mercury-intrusion porosimetry analyses. Silica and SiO(x)C(y) ceramics formed in situ during the calcination process acted as binders of the porous SiC grains. The porous SiC can be used as a host for the growth of ZSM-5 zeolite crystals to form the ZSM-5/porous-SiC composite material. After loading another catalytic active component of molybdenum, a novel catalytic material, Mo-ZSM-5/porous-SiC, was obtained, which exhibited improved catalytic activity in the methane dehydroaromatization reaction.
关键词[WOS]: MO-95 NMR-SPECTROSCOPY ;  METHANE AROMATIZATION ;  CERAMICS ;  FOAMS ;  DEHYDROAROMATIZATION ;  COATINGS ;  POLYMER ;  TRANSFORMATION ;  FABRICATION ;  CRYSTALS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000273856400024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/102483
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Gu, Lijun,Ma, Ding,Yao, Songdong,et al. Template-Synthesized Porous Silicon Carbide as an Effective Host for Zeolite Catalysts[J]. CHEMISTRY-A EUROPEAN JOURNAL,2009,15(48):13449-13455.
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