IMR OpenIR
In-situ fabrication of Ce-rich CeO2 nanocatalyst for efficient CO oxidation
Liu, Xiaoyuan1,2; Wang, Ke1,2; Zhou, Yang1,2; Zhang, Xinglai1; Tang, Xinyue1,2; Ren, Pengcheng3; Jiang, Xin1; Liu, Baodan1
Corresponding AuthorLiu, Baodan(baodanliu@hotmail.com)
2019-07-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume792Pages:644-651
AbstractCeria is widely utilized in the field of CO catalysis due to its outstanding oxygen storage/release capacity (OSC/ORC). In this study, Ce precursor is successfully injected into the plasma electrolytic oxidation (PEO) film in silicate electrolyte through the addition of EDTA-2Na during PEO process. The atomic percentage (at. %) of Ce in PEO film can reach up to 14.80, which is the highest among all the related works. Annealing treatment in air ambient leads to the crystallization and oxidation reaction of Ce species, which mainly exist in the PEO film in amorphous phase and Ce-4.667(SiO4)(3)O. During the annealing process, CeO2 nanocrystals (similar to 100 nm) are generated under the confinement of amorphous SiO2 layer in PEO film. Subsequent etching treatment removes the amorphous SiO2 capping layer and triggers the catalytic activity of CeO2 nanocrystals. CO oxidation test reveals that these CeO2 nanocatalysts own remarkable catalytic activity in CO oxidation and show strong synergistic effect with noble metal (Au). This study establishes an efficient in-situ fabrication route for the preparation of highly active metal-supported ceria nanocatalysts with strong substrate adherence, showing overwhelming advantage compared with traditional catalyst preparation methods, which is promising for the direct integration of various oxide catalysts towards CO oxidation, TWCs, SCR, etc. (C) 2019 Elsevier B.V. All rights reserved.
KeywordCeO2 nanocrystal Plasma electrolytic oxidation In-situ growth CO oxidation
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science
DOI10.1016/j.jallcom.2019.04.057
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51702326] ; National Natural Science Foundation of China[51872296] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[Y4NC711171] ; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science[2017RP25]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000467235800074
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133255
Collection中国科学院金属研究所
Corresponding AuthorLiu, Baodan
Affiliation1.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Yantai Huaheng Energy Conservat Co Ltd, 32 Zhujiang Rd, Yantai 264006, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xiaoyuan,Wang, Ke,Zhou, Yang,et al. In-situ fabrication of Ce-rich CeO2 nanocatalyst for efficient CO oxidation[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,792:644-651.
APA Liu, Xiaoyuan.,Wang, Ke.,Zhou, Yang.,Zhang, Xinglai.,Tang, Xinyue.,...&Liu, Baodan.(2019).In-situ fabrication of Ce-rich CeO2 nanocatalyst for efficient CO oxidation.JOURNAL OF ALLOYS AND COMPOUNDS,792,644-651.
MLA Liu, Xiaoyuan,et al."In-situ fabrication of Ce-rich CeO2 nanocatalyst for efficient CO oxidation".JOURNAL OF ALLOYS AND COMPOUNDS 792(2019):644-651.
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
[Liu, Xiaoyuan]'s Articles
[Wang, Ke]'s Articles
[Zhou, Yang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Xiaoyuan]'s Articles
[Wang, Ke]'s Articles
[Zhou, Yang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Xiaoyuan]'s Articles
[Wang, Ke]'s Articles
[Zhou, Yang]'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.