DICP OpenIR
Polymorphous transformation of rod-shaped iron oxides and their catalytic properties in selective reduction of NO by NH3
Wei, Xuejiao; Zhou, Yan; Li, Yong; Shen, Wenjie
Source PublicationRSC ADVANCES
2015
DOI10.1039/c5ra08254d
Volume5Issue:81Pages:66141-66146
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordALPHA-FE2O3 NANOCRYSTALS ; GAMMA-FE2O3 ; MAGNETITE ; FE3O4 ; RECONSTRUCTION ; ADSORPTION ; OXIDATION ; HEMATITE ; FE2O3 ; XPS
AbstractPolymorphous transformation of rod-shaped gamma-Fe2O3 was applied to fabricate Fe3O4/Fe2O3 nanorods. Hydrogen reduction of gamma-Fe2O3 nanorods at 350 degrees C yielded Fe3O4 nanorods with similar size; reoxidation of the resulting Fe3O4 nanorods produced gamma-Fe2O3 at 500 degrees C and alpha-Fe2O3 nanorods at 600 degrees C. When applied to catalyze selective reduction of NO with NH3, the activity followed the order gamma-Fe2O3 > gamma-Fe2O3-500 > alpha-Fe2O3 > Fe3O4, which was well correlated with their crystalline structures. The superior performance of gamma-Fe2O3 nanorods was attributed to the simultaneous exposure of Fe3+ and O2-, which favoured the adsorption and activation of NH3 and NO molecules.
Language英语
WOS IDWOS:000359243000061
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146473
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Wei, Xuejiao,Zhou, Yan,Li, Yong,et al. Polymorphous transformation of rod-shaped iron oxides and their catalytic properties in selective reduction of NO by NH3[J]. RSC ADVANCES,2015,5(81):66141-66146.
APA Wei, Xuejiao,Zhou, Yan,Li, Yong,&Shen, Wenjie.(2015).Polymorphous transformation of rod-shaped iron oxides and their catalytic properties in selective reduction of NO by NH3.RSC ADVANCES,5(81),66141-66146.
MLA Wei, Xuejiao,et al."Polymorphous transformation of rod-shaped iron oxides and their catalytic properties in selective reduction of NO by NH3".RSC ADVANCES 5.81(2015):66141-66146.
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