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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)
KeywordCopper Nanoparticle Sba-15 Catalysis Co Oxidation
Source PublicationAPPLIED CATALYSIS A-GENERAL
2006-01-04
DOI10.1016/j.apcata.2005.08.035
Volume297Issue:1Pages:40-47
Indexed BySCI
SubtypeArticle
Department15
Funding Project1501
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordCARBON-MONOXIDE OXIDATION ; GOLD NANOPARTICLES ; MESOPOROUS SILICA ; SELECTIVE OXIDATION ; AU NANOPARTICLES ; OXIDE CATALYSTS ; TEMPERATURE ; PERFORMANCE ; HYDROGEN ; AU/ALPHA-FE2O3
AbstractCopper 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.
Language英语
URL查看原文
WOS IDWOS:000234667700006
Citation statistics
Cited Times:114[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/93261
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang T(张涛); Zhang T(张涛)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
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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