QIBEBT-IR  > 公共实验室
Infrared Studies of the Promoting Role of Water on the Reactivity of Pt/FeOx Catalyst in Low-Temperature Oxidation of Carbon Monoxide
Li, Suying1; Jia, Mingjun2; Gao, Jun1; Wu, Ping2; Yang, Menglong1; Huang, Shaohua1; Dou, Xiaowei1; Yang, Ying1; Zhang, Wenxiang2
2015-02-05
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
Volume119Issue:5Pages:2483-2490
AbstractFor the purpose of revealing the promoting role of water on the reactivity of the supported Pt/FeOx catalyst in the low-temperature oxidation of CO, in situ diffuse reflectance infrared Fourier transform (DRIFT) spectra were conducted to study the adsorption properties of CO under various conditions. In the case of without water (CO + O-2), CO could be preferentially adsorbed on the active Pt sites, and then strongly adsorbed on the Fe3+ sites, which might considerably inhibit the ability for O-2 activation, and result in the decrease of reactivity of Pt/FeOx for low-temperature oxidation of CO. For the CO oxidation under wet condition (CO + O-2 + H2O), coadsorption of water and oxygen was observed, which could form surface oxygen/hydroxyls species, and significantly inhibit the adsorption of CO on the Fe3+ sites, thus avoiding the deep reduction of the active Fe3+ sites located at the boundaries between FeOx and Pt nanoparticles. In this case, the catalytic redox cycle in the active Fe3+ sites (mainly for O-2 activation) could be easily achieved by the addition of H2O, which finally results in the significant improvement of the activity and stability of the Pt/FeOx catalyst in low-temperature oxidation of CO.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/jp510261w
WOS KeywordCO OXIDATION ; HYDROXYL-GROUPS ; IRON-OXIDE ; FT-IR ; SURFACE ; ADSORPTION ; OXYGEN ; MECHANISM ; PLATINUM ; FE3O4(111)
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000349136400028
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6093
Collection公共实验室
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
2.Jilin Univ, Coll Chem, State Key Lab Theoret & Computat Chem, Changchun 130021, Peoples R China
Recommended Citation
GB/T 7714
Li, Suying,Jia, Mingjun,Gao, Jun,et al. Infrared Studies of the Promoting Role of Water on the Reactivity of Pt/FeOx Catalyst in Low-Temperature Oxidation of Carbon Monoxide[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(5):2483-2490.
APA Li, Suying.,Jia, Mingjun.,Gao, Jun.,Wu, Ping.,Yang, Menglong.,...&Zhang, Wenxiang.(2015).Infrared Studies of the Promoting Role of Water on the Reactivity of Pt/FeOx Catalyst in Low-Temperature Oxidation of Carbon Monoxide.JOURNAL OF PHYSICAL CHEMISTRY C,119(5),2483-2490.
MLA Li, Suying,et al."Infrared Studies of the Promoting Role of Water on the Reactivity of Pt/FeOx Catalyst in Low-Temperature Oxidation of Carbon Monoxide".JOURNAL OF PHYSICAL CHEMISTRY C 119.5(2015):2483-2490.
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
[Li, Suying]'s Articles
[Jia, Mingjun]'s Articles
[Gao, Jun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Suying]'s Articles
[Jia, Mingjun]'s Articles
[Gao, Jun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Suying]'s Articles
[Jia, Mingjun]'s Articles
[Gao, Jun]'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.