| CO氧化反应中H2O对MOx和Au/MOx催化性能的影响 |
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| 引用本文： | 王桂英,张文祥,崔云琛,廉红蕾,蒋大振,吴通好.CO氧化反应中H2O对MOx和Au/MOx催化性能的影响[J].催化学报,2001,22(4):408-410. |
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| 作者姓名： | 王桂英 张文祥 崔云琛 廉红蕾 蒋大振 吴通好 |
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| 作者单位： | 吉林大学化学系, |
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| 基金项目： | 山西省重点实验室基金，吉林大学校科研和教改项目，国家自然科学基金，教育部科研项目，，，20073167，1A301123，，，， |
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| 摘 要： | 过渡金属氧化物［1,2］及负载型贵金属催化剂［3～13］是催化氧化消除CO的有效催化剂,一直是研究的热点. 虽然对MOx和Au/MOx上CO的氧化性能研究得较多,但大多是在无水条件下进行的;涉及催化剂抗水性能的报道较少［3,9,10］,且仅限于对催化剂活性的研究. Haruta等［3］对Au/Fe2O3,Au/Co3O4和Au/TiO 2等体系开展了一些工作, 认为水对CO氧化活性有促进作用. 本文重点考察了水对MOx(M=Al,Ca,Co,Cr,Cu,Fe,La,Mn,Ni和Zn)催化剂上CO氧化活性的影响,以及水对Au/MOx 催化剂活性及稳定性的影响.
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| 关 键 词： | 金属氧化物 金 负载型催化剂 一氧化碳 氧化 活性 稳定性 |
| 文章编号： | 0253-9837(2001)04-0408-03 |
| 收稿时间： | 2001-08-25 |
Effect of H2O on Catalytic Performance of MOx and Au/MOx Catalysts for CO Oxidation |
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| WANG Guiying,ZHANG Wenxiang ,CUI Yunchen,LIAN Honglei,JIANG Dazhen,Wu Tonghao.Effect of H2O on Catalytic Performance of MOx and Au/MOx Catalysts for CO Oxidation[J].Chinese Journal of Catalysis,2001,22(4):408-410. |
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| Authors: | WANG Guiying ZHANG Wenxiang CUI Yunchen LIAN Honglei JIANG Dazhen Wu Tonghao |
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| Institution: | WANG Guiying,ZHANG Wenxiang *,CUI Yunchen,LIAN Honglei,JIANG Dazhen,Wu Tonghao |
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| Abstract: | MO x and Au/MO x catalysts were prepared by the coprecipitation method and their catalytic performance for CO oxidation was evaluated through the feeding gas with or without water vapor. The results showed that the activity and the stability of MO x catalysts are greatly dependent on the kinds of metal oxides. The activity order of MO x is Co 3O 4>NiO>Fe 2O 3>CuO>MnO x>ZnO>Al 2O 3>Cr 2O 3>CaO>La 2O 3. The water has negative effect on the activity of MO x (M=Co, Cu, Fe, Mn, Ni and Zn) catalysts. The catalytic activity and stability of Au/MO x catalysts are greatly dependent on the properties of MO x. The water has negative effect on the activity of Au/MO x (M=Ca, Cr, Cu,La and Mn) and on the stability of Au/MO x (M=Al, Co, Fe, Mn, Ni and Zn) at ambient temperature. |
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| Keywords: | metal oxide aurum supported catalyst carbon monoxide oxidation activity stability |
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