DICP OpenIR
Structural transformation of Pd-alpha-Fe2O3 and Pd-gamma-Fe2O3 catalysts and application in the CO oxidation reaction
Xu, Hong1; Ni, Ke1; Li, Xiaokun1; Fang, Guangzong2; Fan, Guohong1
Source PublicationRSC ADVANCES
2017
DOI10.1039/c7ra09580e
Volume7Issue:81Pages:51403-51410
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordRAY PHOTOELECTRON-SPECTROSCOPY ; METAL-SUPPORT INTERACTIONS ; LOW-TEMPERATURE ; CARBON-MONOXIDE ; PREFERENTIAL OXIDATION ; BIMETALLIC CATALYSTS ; PD CATALYSTS ; XPS SPECTRA ; IRON-OXIDES ; PT-FE
AbstractPd-alpha-Fe2O3 and Pd-gamma-Fe2O3 catalysts were acquired by treating Pd-Fe catalysts with redox pretreatment. These catalysts were characterized by various techniques and applied in the CO oxidation reaction. Characterization reveals that the Pd-alpha-Fe2O3 catalyst is obtained after calcination in air at 400 degrees C. The following reduction at lower temperature forms the Pd-gamma-Fe2O3 catalyst. In the case of larger Pd (or PdO) and Fe2O3 nanoparticles, the Pd-gamma-Fe2O3 catalyst is highly active for low temperature CO oxidation compared with the Pd-alpha-Fe2O3 catalyst, which may originate from the high oxygen storage properties of gamma-Fe2O3 and stronger interaction between Pd and gamma-Fe2O3. Higher reduction temperature results in much larger particle sizes and decreased activity. Stability tests also indicate that the highly active Pd-gamma-Fe2O3 catalyst could transform to Pd-alpha-Fe2O3 in reactive atmosphere, leading to catalyst deactivation. Re-reduction treatment of the inactivated catalyst results in reproduction of the activity.
Language英语
WOS IDWOS:000414780700039
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149739
Collection中国科学院大连化学物理研究所
Affiliation1.Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243002, Anhui, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Xu, Hong,Ni, Ke,Li, Xiaokun,et al. Structural transformation of Pd-alpha-Fe2O3 and Pd-gamma-Fe2O3 catalysts and application in the CO oxidation reaction[J]. RSC ADVANCES,2017,7(81):51403-51410.
APA Xu, Hong,Ni, Ke,Li, Xiaokun,Fang, Guangzong,&Fan, Guohong.(2017).Structural transformation of Pd-alpha-Fe2O3 and Pd-gamma-Fe2O3 catalysts and application in the CO oxidation reaction.RSC ADVANCES,7(81),51403-51410.
MLA Xu, Hong,et al."Structural transformation of Pd-alpha-Fe2O3 and Pd-gamma-Fe2O3 catalysts and application in the CO oxidation reaction".RSC ADVANCES 7.81(2017):51403-51410.
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
[Xu, Hong]'s Articles
[Ni, Ke]'s Articles
[Li, Xiaokun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Hong]'s Articles
[Ni, Ke]'s Articles
[Li, Xiaokun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Hong]'s Articles
[Ni, Ke]'s Articles
[Li, Xiaokun]'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.