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题名: TPD-MS study of nitric oxide reduction with propene on Au/Al2O3 catalyst
作者: Qi, SX;  Zou, XH;  Xu, XF;  An, LD;  Li, SB;  Cheng, MJ;  Bao, XH
关键词: gold ;  alumina ;  supported catalyst ;  nitric oxide ;  propene ;  adsorption ;  temperature programmed desorption ;  mass spectrometry ;  selective reduction
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2003-03-01
卷: 24, 期:3, 页:203-207
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: Au/Al2O3 catalyst samples with different Au loadings were prepared, through pretreatment of reduction in H-2 or calcination in air, by deposition-precipitation method. The desorption performance of NO or NO-O-2 adsorbed on Au/Al2O3 was investigated by temperature programmed desorption-mass spectrometry (TPD-MS) technique, and the mechanism of NO reduction was discussed. 1%Au/Al2O3 exhibits the highest catalytic activity, on which the conversion of NO is 60% at 375 degreesC. High Au loading could lead to a lower conversion temperature, but, NO conversion decreased, and the catalysts pretreated by reduction in H-2 showed higher activity than that calcined in air. The TPD-MS results of NO adsorbed on Au/Al2O3 showed that N2O was produced only on the catalyst during the process of temperature programmed desorption. The results of temperature programmed surface reaction (TPSR) showed that compared with the support Al2O3, the reduction temperature of NO on 1% Au/Al2O3 decreased to 375 degreesC from 550 degreesC, which is consistent with its higher activity. According to the TPD-MS results, it is concluded that N2O was formed in the reduction of NO with C3H6, which may be the intermediate in the reaction, and then N-2 formed.
关键词[WOS]: NITROGEN MONOXIDE
语种: 英语
WOS记录号: WOS:000182347400010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138279
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.Yantai Univ, Inst Appl Catalysis, Shandong 264005, Peoples R China
2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysi, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Qi, SX,Zou, XH,Xu, XF,et al. TPD-MS study of nitric oxide reduction with propene on Au/Al2O3 catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2003,24(3):203-207.
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