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学科主题: 物理化学
题名: Synthesis, characterization and catalytic performances of Ce-SBA-15 supported nickel catalysts for methane dry reforming to hydrogen and syngas
作者: Wang, Ning1;  Chu, Wei1;  Zhang, Tao2;  Zhao, X. S.3
通讯作者: WeiChu
关键词: Hydrogen production ;  Cerium-incorporated SBA-15 ;  Nano nickel catalyst ;  Methane dry reforming ;  High catalytic performance
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2012
DOI: 10.1016/j.ijhydene.2011.03.138
卷: 37, 期:1, 页:19-30
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 2,3
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: A series of Ce-incorporated SBA-15 mesoporous materials were synthesized through direct hydrothermal synthesis method and further impregnated with 12 wt.% Ni. The samples were characterized by ICP-AES, XRD, N-2 physisorption, XPS, TPR, H-2 chemisorption, TGA, temperature-programmed hydrogenation (TPH) and TEM measurements. The low-angle XRD and N-2 physisorption results showed the Ce successfully incorporated into the framework of SBA-15. The catalytic properties of these catalysts were investigated in methane reforming with CO2. The Ce/Si molar ratio had a significant influence on the catalytic performance. The highest catalytic activity and long-term stability were obtained over the Ni/Ce-SBA-15 (Ce/Si = 0.04) sample. The improved catalytic behavior could be attributed to the cerium impact in the framework of SBA-15, where cerium promoted the dispersion of nano-sized Ni species and inhibited the carbon formation. In comparison with the effect of CeO2 crystallites in SBA-15, cerium in the framework of SBA-15 promoted the formation of the nickel metallic particles with smaller size. The XRD and TGA results exhibited that carbon deposition was responsible for activity loss of Ni/SBA-15 and Ni/Ce-SBA-15 (Ce/Si = 0.06) catalysts. TEM results showed that the hexagonal mesopores of SBA-15 were still kept intact after reaction and the pore walls of SBA-15 prevented the aggregation of nickel. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: CARBON-DIOXIDE ;  SYNTHESIS GAS ;  OXIDATIVE DEHYDROGENATION ;  NI CATALYSTS ;  MESOPOROUS SILICA ;  FLUIDIZED-BED ;  CO2 ;  ETHANOL ;  SBA-15 ;  STEAM
语种: 英语
WOS记录号: WOS:000300470000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117781
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.Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

Recommended Citation:
Wang, Ning,Chu, Wei,Zhang, Tao,et al. Synthesis, characterization and catalytic performances of Ce-SBA-15 supported nickel catalysts for methane dry reforming to hydrogen and syngas[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(1):19-30.
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