中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Selective catalytic reduction of NO with propene over Au/CeO2/Al2O3 catalysts
作者: Wang, Xinkui;  Wang, Aiqin;  Wang, Xiaodong;  Yang, Xuefeng;  Zhang, Tao
通讯作者: 张涛
关键词: gold ;  ceria ;  SCR ;  NO ;  propene
刊名: GOLD BULLETIN
发表日期: 2007
卷: 40, 期:1, 页:52-58
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Inorganic & Nuclear ;  Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Selective catalytic reduction of NO by propene under an oxygen-rich atmosphere has been investigated over Au/ CeO2, Au/CeO2,/Al2O3 and Au/Al2O3 catalysts prepared by deposition-precipitation. The results demonstrated that Au/16%CeO2/Al2O3 had good low-temperature activity, selectivity towards N-2 and stability, which is superior to that of Pt/Al2O3. It was also found that adding 2% water vapour to the feed stream enhanced the NO conversions at low temperatures while the presence of 20 ppm SO 2 increased NO conversions at higher temperatures. It is particularly interesting that under the simultaneous presence of 2% water vapour and 20 ppm SO2 the NO conversions to N-2 were significantly increased and the temperature window was widened significantly. The catalysts were characterized by Xray diffraction (XRD), high resolution transmission electron microscopy coupled with energy dispersive X-ray spectroscopy (HRTEM-EDX) and temperature-programmed reduction (H-2-TPR) techniques. Both XRD and HRTEM revealed that CeO2 was highly dispersed on the alumina support, and HRTEM combined with EDX showed that gold particles were preferentially deposited on those highly dispersed CeO2 particles. The gold deposition made CeO2 more reducible and interaction between gold and those highly dispersed CeO2. particles became stronger than that with the bulk CeO2, and this interaction is probably responsible for the superior catalytic performance of the Au/CeO2/Al2O3.
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS ;  LEAN-BURN CONDITIONS ;  CARBON-MONOXIDE ;  CO OXIDATION ;  NITROGEN MONOXIDE ;  SUPPORTED RHODIUM ;  GOLD CATALYSTS ;  EXCESS OXYGEN ;  METAL-OXIDES ;  NITRIC-OXIDE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000246857400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98647
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


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

Recommended Citation:
Wang, Xinkui,Wang, Aiqin,Wang, Xiaodong,et al. Selective catalytic reduction of NO with propene over Au/CeO2/Al2O3 catalysts[J]. GOLD BULLETIN,2007,40(1):52-58.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Xinkui]'s Articles
 [Wang, Aiqin]'s Articles
 [Wang, Xiaodong]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Xinkui]‘s Articles
 [Wang, Aiqin]‘s Articles
 [Wang, Xiaodong]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace