DICP OpenIR
Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni
Chen, Limin1,2; Ma, Ding2,3; Zhang, Zhen2; Guo, Yuanyuan1; Ye, Daiqi1; Huang, Bichun1
KeywordLow Pt Loading Fe/ni Promoted Pt Catalysts Carbon Nanotubes Co Preferential Oxidation (Prox)
Source PublicationCATALYSIS LETTERS
2012-08-01
DOI10.1007/s10562-012-0850-0
Volume142Issue:8Pages:975-983
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordCARBON NANOTUBES ; ACTIVATED CARBON ; SELECTIVE OXIDATION ; H-2-RICH STREAM ; RICH STREAM ; MECHANISM ; PLATINUM ; MONOXIDE ; ABSENCE ; METALS
AbstractThe commercial carbon nanotubes (CNTs-o) and purified carbon nanotubes (CNTs-p) have been utilized to prepare Pt(FeNi)/CNTs catalysts for CO preferential oxidation (PROX) in H-2 rich stream. The 3 wt%Pt0.41 %Fe 0.35 %Ni/CNTs-p catalyst after activation at 500 A degrees C in H-2 can almost completely remove CO at 6 A degrees C in feed gas containing 1 % CO, 0.5 % O-2 (volume ratio) and H-2 balance. CNTs-o supported 3 wt% Pt can also remove CO almost completely at room temperature, after activation at 500 A degrees C in the feed gas. And this catalyst can keep high activity, high selectivity and high stability for PROX of CO at room temperature. These catalysts are the most effective catalysts for PROX of CO with much lower Pt loading until so far. H-TPR, XRD, HRTEM and reaction results indicate that the Fe and/or Ni precursors have been reduced to metallic state after activation in H-2 which can be oxidized to coordinatively unsaturated FeOx and/or NiOx active species after exposure to feed gas. XPS data point out that over oxidation of Fe and Pt species will deactivate the catalysts seriously. The high catalytic performance is mainly due to the promotion effects of in situ formed coordinatively unsaturated FeOx and/or NiOx species and the unique properties of CNTs.
Language英语
WOS IDWOS:000307292800007
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138030
Collection中国科学院大连化学物理研究所
Affiliation1.S China Univ Technol, Guangdong Prov Key Lab Atmospher Environm & Pollu, Coll Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Chen, Limin,Ma, Ding,Zhang, Zhen,et al. Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni[J]. CATALYSIS LETTERS,2012,142(8):975-983.
APA Chen, Limin,Ma, Ding,Zhang, Zhen,Guo, Yuanyuan,Ye, Daiqi,&Huang, Bichun.(2012).Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni.CATALYSIS LETTERS,142(8),975-983.
MLA Chen, Limin,et al."Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni".CATALYSIS LETTERS 142.8(2012):975-983.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Limin]'s Articles
[Ma, Ding]'s Articles
[Zhang, Zhen]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Limin]'s Articles
[Ma, Ding]'s Articles
[Zhang, Zhen]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Limin]'s Articles
[Ma, Ding]'s Articles
[Zhang, Zhen]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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