Fe-57 Mossbauer Spectroscopy of Ir-Fe Catalysts for Preferential CO Oxidation in H-2

	Fe-57 Mossbauer Spectroscopy of Ir-Fe Catalysts for Preferential CO Oxidation in H-2
	Liu Kuo 1,2; Zhang Wansheng 1; Wang Junhu 1; Wang Aiqin 1; Huang Yanqiang 1; Jin Changzi 1; Shen Jianyi 3; Zhang Tao 1
刊名	chinese journal of catalysis
	2010-11-01
卷号	31 期号:11 页码:1335-1341
关键词	carbon monoxide selective oxidation iridium iron quasi Mossbauer spectroscopy microcalorimetry metal-metal interaction
英文摘要	new insights on the interaction between ir and fe oxide are reported. three ir-fe catalysts were prepared by different impregnation sequences of an al2o3 support. co-impregnation gave a better catalyst for the preferential co oxidation in h-2 (prox) reaction. microcalorimetry data showed that the adsorption of co and h-2 were different. quasi in situ mossbauer data of the three catalysts after reduction, reoxidation, and prox reaction showed that a strong interaction between ir and fe affected the redox properties of the ir-fe catalysts. co conversion was proportional to the concentration of the fe2+(a) species, thus, fe2+(a) was an active site in the prox reaction. the impregnation sequence influenced the interaction between ir and fe and consequently, the amount of the active fe2+(a) species. a strong ir-fe interaction stabilized the active fe2+ sites for activating o-2.
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]	carbon-monoxide ; room-temperature ; hydrogen ; nanoparticles ; promotion ; surface ; gases ; ptfe
收录类别	SCI
语种	英语
WOS记录号	WOS:000287274100005
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141901]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Nanjing Univ, Dept Chem, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Liu Kuo,Zhang Wansheng,Wang Junhu,et al. Fe-57 Mossbauer Spectroscopy of Ir-Fe Catalysts for Preferential CO Oxidation in H-2[J]. chinese journal of catalysis,2010,31(11):1335-1341.
APA	Liu Kuo.,Zhang Wansheng.,Wang Junhu.,Wang Aiqin.,Huang Yanqiang.,...&Zhang Tao.(2010).Fe-57 Mossbauer Spectroscopy of Ir-Fe Catalysts for Preferential CO Oxidation in H-2.chinese journal of catalysis,31(11),1335-1341.
MLA	Liu Kuo,et al."Fe-57 Mossbauer Spectroscopy of Ir-Fe Catalysts for Preferential CO Oxidation in H-2".chinese journal of catalysis 31.11(2010):1335-1341.