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题名: Promotion effect of cerium and lanthanum oxides on Ni/SBA-15 catalyst for ammonia decomposition
作者: Liu, Hongchao1, 2;  Wang, Hua1;  Shen, Jianghan1, 2;  Sun, Ying1, 2;  Liu, Zhongmin1
通讯作者: 刘中民
关键词: ammonia decomposition ;  Ni/SBA-15 catalysts ;  cerium ;  lanthanum
刊名: CATALYSIS TODAY
发表日期: 2008-02-29
DOI: 10.1016/j.cattod.2007.10.048
卷: 131, 期:1-4, 页:444-449
收录类别: ISTP ;  SCI
文章类型: Article
部门归属: 8
项目归属: 803
产权排名: 1;1
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: CeNi/SBA-15 and LaNi/SBA-15 catalysts were prepared by deposition-precipitation (DP) method and characterized by N-2 physical adsorption, XRD, H-2-TPR, H-2-chemisorption and TEM. Their catalytic performances in the ammonia decomposition reaction were tested and compared with Ni/SBA-15 catalyst. Addition of cerium and lanthanum oxides to the Ni/SBA-15 catalyst caused some decrease of BET surface area and pore volume of the catalysts, but led to a promotion effect to their catalytic activity which was closely related to the ratio of Cc (La)/Ni. The highest conversion of ammonia could be obtained when the Ce (La)/Ni ratio was around 0.3. The promotion effect is more evident on CeNi/ SBA-15(0.3) than on LaNi/SBA-15(0.3) catalyst under identical reaction conditions. The CeNi/SBA-15 and LaNi/SBA-15 catalysts show smaller nickel particle size and easier reducibility in comparison with the Ni/SBA-15 catalysts. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: COX-FREE HYDROGEN ;  SUPPORTED NICKEL-CATALYSTS ;  FUEL-CELL APPLICATIONS ;  RUTHENIUM CATALYSTS ;  NH3 DECOMPOSITION ;  DEPOSITION-PRECIPITATION ;  GENERATION ;  SURFACE ;  ALUMINA ;  SILICA
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000253382100062
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100623
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, Appl Catalysis Lab, Dalian 116023, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Hongchao,Wang, Hua,Shen, Jianghan,et al. Promotion effect of cerium and lanthanum oxides on Ni/SBA-15 catalyst for ammonia decomposition[J]. CATALYSIS TODAY,2008,131(1-4):444-449.
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