DICP OpenIR
学科主题物理化学
Structural changes of Au-Cu bimetallic catalysts in CO oxidation: In situ XRD, EPR, XANES, and FT-IR characterizations
Liu, Xiaoyan1,3; Wang, Aiqin3; Li, Lin3; Zhang, Tao3; Mou, Chung-Yuan1; Lee, Jyh-Fu2; Zhang T(张涛); Mou ZY(牟中原)
关键词Gold Copper Bimetallic Co Oxidation Xanes Epr Ft-ir In Situ Xrd
刊名JOURNAL OF CATALYSIS
2011-03-07
ISSN0021-9517
DOI10.1016/j.jcat.2010.12.016
278期:2页:288-296
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, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]METHANOL FUEL-CELLS ; GOLD NANOPARTICLES ; ROOM-TEMPERATURE ; SELECTIVE OXIDATION ; ALLOY NANOPARTICLES ; PROPENE EPOXIDATION ; MESOPOROUS SUPPORT ; AU/SIO2 CATALYST ; ADSORBED CO ; ACTIVE GOLD
英文摘要Structural changes of Au-Cu bimetallic catalysts in CO oxidation: In situ XRD, EPR, XANES, and FT-IR characterizations; Au-Cu bimetallic nanoparticles supported on SBA-15 have been reported to be much more active in CO oxidation than the corresponding monometallic counterparts in our previous work. In this work, in situ techniques including XRD, EPR, XANES, and FT-IR were employed to reveal the structural changes of the Au-Cu bimetallic particles during different pretreatment and reaction conditions, and to clarify the essence of the synergistic effect between gold and copper. The results showed that gold remained as Au(0) in any treatment conditions, while copper was very sensitive to the treatment temperature and atmosphere. The freshly reduced catalyst was a mixture of Au(3)Cu(1) intermetallic phase and Cu(2)O amorphous phase. In CO oxidation, the Au(3)Cu(1) intermetallic phase was segregated into a gold core decorated with tiny CuO(x) patches, and CO adsorbed on Au(0) reacted with active oxygen provided by the neighboring CuO(x) thus enhancing greatly the activity for CO oxidation. (C) 2010 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000288294600013
引用统计
被引频次:161[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/115806
专题中国科学院大连化学物理研究所
通讯作者Zhang T(张涛); Mou ZY(牟中原)
作者单位1.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
2.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Liu, Xiaoyan,Wang, Aiqin,Li, Lin,et al. Structural changes of Au-Cu bimetallic catalysts in CO oxidation: In situ XRD, EPR, XANES, and FT-IR characterizations[J]. JOURNAL OF CATALYSIS,2011,278(2):288-296.
APA Liu, Xiaoyan.,Wang, Aiqin.,Li, Lin.,Zhang, Tao.,Mou, Chung-Yuan.,...&牟中原.(2011).Structural changes of Au-Cu bimetallic catalysts in CO oxidation: In situ XRD, EPR, XANES, and FT-IR characterizations.JOURNAL OF CATALYSIS,278(2),288-296.
MLA Liu, Xiaoyan,et al."Structural changes of Au-Cu bimetallic catalysts in CO oxidation: In situ XRD, EPR, XANES, and FT-IR characterizations".JOURNAL OF CATALYSIS 278.2(2011):288-296.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
201136TXWq7jFO.pdf(605KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu, Xiaoyan]的文章
[Wang, Aiqin]的文章
[Li, Lin]的文章
百度学术
百度学术中相似的文章
[Liu, Xiaoyan]的文章
[Wang, Aiqin]的文章
[Li, Lin]的文章
必应学术
必应学术中相似的文章
[Liu, Xiaoyan]的文章
[Wang, Aiqin]的文章
[Li, Lin]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。