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学科主题物理化学
Structural Properties and Catalytic Activity of Sr-Substituted LaFeO3 Perovskite
Zhang Xiaojing; Li Huaju; Li Yong; Shen Wenjie; Shen WJ(申文杰)
关键词Perovskite Lanthanum Ferrite Substitution Reducibility Carbon Monoxide Oxidation Methane Combustion
刊名CHINESE JOURNAL OF CATALYSIS
2012-07-01
DOI10.1016/S1872-2067(11)60388-4
33期:7页:1109-1114
收录类别SCI
文章类型Article
部门归属5
项目归属501
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]AUTOMOTIVE-EMISSIONS CONTROL ; METHANE COMBUSTION ; SURFACE-PROPERTIES ; TOTAL OXIDATION ; OXIDES ; REDOX ; FE ; PERFORMANCE ; REDUCTION ; STABILITY
英文摘要Partial substitution of La3+ by Sr2+ in LaFeO3 resulted in significant changes in its structure and catalytic activity. The perovskite structure was changed from orthorhombic in LaFeO3 to nearly cubic in La0.8Sr0.2FeO3. Replacement of La3+ by Sr2+ induced a positive charge deficiency that was compensated for by the oxidation of some Fe3+ to Fe4+ and the generation of oxygen vacancies, which greatly promoted the reducibility of the perovskite. La0.8Sr0.2FeO3 gave considerably enhanced activity in CO oxidation and methane combustion because the oxygen vacancies accelerated the dissociation of gaseous oxygen on the surface in CO oxidation and facilitated the diffusion of lattice oxygen from the bulk to the surface during CH4 combustion.
语种英语
WOS记录号WOS:000306676600007
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/117694
专题中国科学院大连化学物理研究所
通讯作者Shen WJ(申文杰)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式
GB/T 7714
Zhang Xiaojing,Li Huaju,Li Yong,et al. Structural Properties and Catalytic Activity of Sr-Substituted LaFeO3 Perovskite[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(7):1109-1114.
APA Zhang Xiaojing,Li Huaju,Li Yong,Shen Wenjie,&申文杰.(2012).Structural Properties and Catalytic Activity of Sr-Substituted LaFeO3 Perovskite.CHINESE JOURNAL OF CATALYSIS,33(7),1109-1114.
MLA Zhang Xiaojing,et al."Structural Properties and Catalytic Activity of Sr-Substituted LaFeO3 Perovskite".CHINESE JOURNAL OF CATALYSIS 33.7(2012):1109-1114.
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