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题名: Effects of Fe promoter on desorption and hydrogenation of CO adsorbed on Rh-Mn-Li/SiO2 catalyst
作者: Yin, HM;  Ding, YJ;  Luo, HY;  Zhu, HJ;  Yan, L;  Lin, LW
关键词: rhodium ;  manganese ;  lithium ;  iron ;  supported catalyst ;  carbon monoxide ;  hydrogenation ;  methane ;  temperature-programmed desorption ;  temperature-programmed surface reaction
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2002-09-01
卷: 23, 期:5, 页:448-452
收录类别: SCI
文章类型: Article
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
英文摘要: The effects of Fe promoter on the desorption and hydrogenation of adsorbed CO over a series of silica-supported Rh-based catalysts were investigated by means of temperature-programmed desorption of adsorbed CO (CO-TPD) and temperature-programmed surface reaction (TPSR) of adsorbed CO with hydrogen. There were three peaks of CO desorption in the CO-TPD spectra over the Rh/SiO2, catalyst. The low-temperature peak of CO desorption was unchanged and the two high-temperature peaks shifted simultaneously toward lower temperature and became narrower when 0.05% of Fe was added into Rh/SiO2. In contrast, the desorption peaks at high temperature moved to higher temperature when 0.05% of Fe was added into the Rh-Mn-Li/SiO2 catalyst, and the amount of CO desorption was more than that over Rh/SiO2. However, the amount of CO desorption decreased with increasing amount of Fe added. The temperature of maximum methane formation in the TPSR spectra was found to be in the following order: Rh/SiO2(482 K)
关键词[WOS]: RHODIUM ;  SYNGAS
语种: 英语
WOS记录号: WOS:000178634300015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139233
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, Dalian 116023, Peoples R China

Recommended Citation:
Yin, HM,Ding, YJ,Luo, HY,et al. Effects of Fe promoter on desorption and hydrogenation of CO adsorbed on Rh-Mn-Li/SiO2 catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2002,23(5):448-452.
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