Au/MOx/Al2O3催化剂催化CO低温氧化 |
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引用本文: | 王东辉,郝郑平,康守方,程代云,史喜成. Au/MOx/Al2O3催化剂催化CO低温氧化[J]. 催化学报, 2002, 23(6): 489-490 |
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作者姓名: | 王东辉 郝郑平 康守方 程代云 史喜成 |
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作者单位: | Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, China;Research Institute of Chemical Defence, Beijing 100083, China,Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, China,Research Institute of Chemical Defence, Beijing 100083, China |
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基金项目: | 国家自然科学基金,50278094, |
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摘 要: | 采用沉积沉淀法,将金负载在复合氧化物载体MOx/Al2O3上,制备得到了Au/MOx/Al2O3催化剂的活性要高于Au/Al2O3催化剂。Au/FeOx/Al2O3催化剂能够在低于223K的温度下实现CO完全催化氧化。TEM图象分析表明,纳米级高分散的金颗粒是金催化剂高活性的前提,但载体的选择,以及复合氧化物载体中过渡金属氧化物的选择,也会对金催化剂的活性产生明显的影响。
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关 键 词: | CO 氧化 金催化剂 载体效应 纳米颗粒 |
收稿时间: | 2002-12-25 |
CO Low-Temperature Oxidation over Au/MOx/Al2O3 Catalysts |
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Abstract: | Generally, bulk gold is regarded to be catalytically inactive. However, recently the supported Au catalysts were found to have good catalytic behavior for various reactions[1,2]. Among them, the most attractive and promising is low temperature CO oxidation. |
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Keywords: | carbon monoxide oxidation gold catalyst support effect nano-particle |
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