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学科主题: 物理化学
题名: Carbon covered alumina prepared by the pyrolysis of sucrose: A promising support material for the supported Pt-Sn bimetallic dehydrogenation catalysts
作者: Luo, Sha1, 2, 3;  He, Songbo1;  Li, XianRu1, 2;  Sun, Chenglin1;  Seshan, K.4
通讯作者: 孙承林
关键词: Dehydrogenation ;  Carbon covered alumina (CCA) ;  Pyrolysis ;  Pt-Sn catalysts ;  Sucrose
刊名: CATALYSIS TODAY
发表日期: 2014-10-01
DOI: 10.1016/j.cattod.2014.02.010
卷: 234, 期:1, 页:295-300
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Sucrose was pyrolyzed on gamma alumina surface to prepare carbon covered alumina (CCA) material. Alumina and CCA supported Pt-Sn catalysts were prepared by the complex impregnation method under vacuum. Dehydrogenation of n-octadecane was performed to study the effect of carbon addition, Pt loading and Sn/Pt weight ratio on the catalytic dehydrogenation activity, selectivity and catalyst stability. BET, mercury porosimetry, XRD, CO-chemisorption, TPR and TG-DTA were used for the carrier and the corresponding catalyst characterization. The results showed that more carbon addition, Pt loading and higher Sn/Pt ratio are propitious to the mono-olefin selectivity and catalyst stability. Pt-Sn was easily formed on the Pt-Sn/CCA catalysts, especially when the Pt loading and Sn/Pt ratio were very high. To keep optimal dehydrogenation conversion, taking consideration to good selectivity and stability, the carbon content, Pt and Sn loading of Pt-Sn/CCA catalysts should be 8.37 wt.%, 0.5 wt.% and 3 wt.%, respectively. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: CHAIN-PARAFFIN DEHYDROGENATION ;  ISOBUTANE DEHYDROGENATION ;  PT-SN/AL2O3 CATALYSTS ;  REFORMING CATALYST ;  STRUCTURAL-CHARACTERIZATION ;  PT-SN/GAMMA-AL2O3 CATALYST ;  PTSNK/GAMMA-AL2O3 CATALYST ;  PROPANE DEHYDROGENATION ;  XPS CHARACTERIZATION ;  SURFACE
语种: 英语
WOS记录号: WOS:000339132900039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144255
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, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
4.Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

Recommended Citation:
Luo, Sha,He, Songbo,Li, XianRu,et al. Carbon covered alumina prepared by the pyrolysis of sucrose: A promising support material for the supported Pt-Sn bimetallic dehydrogenation catalysts[J]. CATALYSIS TODAY,2014,234(1):295-300.
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