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Factors influencing the catalytic activity of SBA-15-supported copper nanoparticles in CO oxidation
Tu, CH; Wang, AQ; Zheng, MY; Wang, XD; Zhang, T; Zhang T(张涛); Zhang T(张涛)
关键词Copper Nanoparticle Sba-15 Catalysis Co Oxidation
刊名APPLIED CATALYSIS A-GENERAL
2006-01-04
DOI10.1016/j.apcata.2005.08.035
297期:1页:40-47
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 ; Life Sciences & Biomedicine
类目[WOS]Chemistry, Physical ; Environmental Sciences
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]CARBON-MONOXIDE OXIDATION ; GOLD NANOPARTICLES ; MESOPOROUS SILICA ; SELECTIVE OXIDATION ; AU NANOPARTICLES ; OXIDE CATALYSTS ; TEMPERATURE ; PERFORMANCE ; HYDROGEN ; AU/ALPHA-FE2O3
英文摘要Copper nanoparticles were deposited onto mesoporous SBA-15 support via two different routes: post-grafting method and incipient wet impregnation method. Both XRD and TEM reveal that the post-grafting can make Cu particles very small in size and highly dispersed into channels of SBA-15, while the impregnation method mainly forms large Cu particles on the external surface of SBA-15. TPR experiments show that CuO species formed by the post-grafting method is more reducible than that prepared by the impregnation method. The catalytic activity tests for CO oxidation manifests that the sample prepared by the post-grafting method has a much higher activity than that prepared by the impregnation method, with a lowering of 50 degrees C for T-50, showing a strong dependence of catalytic activity on the size and dispersion of Cu particles. Besides the preparation procedure, other factors including calcination temperature, reduction treatment, copper loading as well as the feed composition, have an important effect on the catalytic activity. The best performance was obtained when the catalyst was calcined at 500 degrees C and reduced at 550 degrees C. The calcination and reduction treatment at high temperature have been found to be necessary to completely remove the organic residue and to generate active metallic copper particles. (c) 2005 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000234667700006
引用统计
被引频次:110[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/321008/93261
专题中国科学院大连化学物理研究所
通讯作者Zhang T(张涛); Zhang T(张涛)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Tu, CH,Wang, AQ,Zheng, MY,et al. Factors influencing the catalytic activity of SBA-15-supported copper nanoparticles in CO oxidation[J]. APPLIED CATALYSIS A-GENERAL,2006,297(1):40-47.
APA Tu, CH.,Wang, AQ.,Zheng, MY.,Wang, XD.,Zhang, T.,...&张涛.(2006).Factors influencing the catalytic activity of SBA-15-supported copper nanoparticles in CO oxidation.APPLIED CATALYSIS A-GENERAL,297(1),40-47.
MLA Tu, CH,et al."Factors influencing the catalytic activity of SBA-15-supported copper nanoparticles in CO oxidation".APPLIED CATALYSIS A-GENERAL 297.1(2006):40-47.
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