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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
刊名RSC ADVANCES
2015
DOI10.1039/c5ra08254d
5期:81页:66141-66146
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]ALPHA-FE2O3 NANOCRYSTALS ; GAMMA-FE2O3 ; MAGNETITE ; FE3O4 ; RECONSTRUCTION ; ADSORPTION ; OXIDATION ; HEMATITE ; FE2O3 ; XPS
英文摘要Polymorphous 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.
语种英语
WOS记录号WOS:000359243000061
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146473
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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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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