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学科主题: 物理化学
题名: Preparation of LaFe0.95Pd0.05O3 perovskites and their catalytic performances in methane combustion
作者: Zhang, Xiaojing1;  Li, Yong1;  Li, Huaju1;  Shen, Wenjie1
通讯作者: 申文杰
关键词: perovskite ;  LaFe0.95Pd0.05O3 ;  calcination temperature ;  pre-treatment ;  methane combustion
刊名: JOURNAL OF NATURAL GAS CHEMISTRY
发表日期: 2012-03-01
DOI: 10.1016/S1003-9953(11)60342-3
卷: 21, 期:2, 页:113-118
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 ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: The physic-chemical properties of LaFe0.95Pd0.05O3 perovskites were strongly dependent on the temperature of calcination. Most of the organic substances and inorganic impurities were readily removed at 723 K but single-phase and well crystallized perovskite structure was formed at 873 K. With further raising the calcination temperature, the crystallite size of LaFe0.95Pd0.05O3 increased considerably. The LaFe0.95Pd0.05O3 sample that calcined at 1073 K showed only comparable activity as the reference LaFeO3 catalyst, in particular below 923 K, but pre-treatment with the reaction gas at 1223 K resulted in significantly enhanced activity due to the generation of active PdO species on the surface. The hysteresis feature upon heating-cooling cycle further confirmed the strong interaction between Pd and LaFeO3 in the perovskite structure.
关键词[WOS]: AUTOMOTIVE EMISSIONS CONTROL ;  THERMAL-STABILITY ;  PD ;  LAFEO3 ;  REDUCTION ;  PALLADIUM ;  EVOLUTION ;  OXIDATION ;  BEHAVIOR ;  OXIDES
语种: 英语
WOS记录号: WOS:000302666600003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118021
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Zhang, Xiaojing,Li, Yong,Li, Huaju,et al. Preparation of LaFe0.95Pd0.05O3 perovskites and their catalytic performances in methane combustion[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2012,21(2):113-118.
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