| Preferential Oxidation of Carbon Monoxide in Excess Hydrogen over Au/Co3O4-CeO2 Catalysts |
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| 引用本文： | 曾尚红 白雪 刘源. Preferential Oxidation of Carbon Monoxide in Excess Hydrogen over Au/Co3O4-CeO2 Catalysts[J]. 中国稀土学报(英文版), 2005, 23(6): 695-700 |
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| 作者姓名： | 曾尚红 白雪 刘源 |
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| 作者单位： | Department of Catalysis Sciences and Technology School of Chemical Engineering Tianjin University Tianjin 300072 China，School of Chemical Engineering Inner Mongolia University of Technology Huhhot 010062 China，Department of Catalysis Sciences and Technology School of Chemical Engineering Tianjin University Tianjin 300072 China |
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| 摘 要： | Fuel cells are considered to be the propulsionsystem of the near future,since they can produceelectricity without pollutingthe environment,and pos-sess the necessary specific power,power density anddurability to replace conventional internal combustioneng…
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| 关 键 词： | 催化剂 Au/Co3O4-CeO2 稀土 预氧化 一氧化碳 |
| 文章编号： | 1002-0721（2005）06-0695-06 |
| 收稿时间： | 2005-01-20 |
| 修稿时间： | 2005-03-14 |
Preferential Oxidation of Carbon Monoxide in Excess Hydrogen over Au/Co3O4- CeO2 Catalysts |
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| Zeng Shanghong,Bai Xue,Liu Yuan. Preferential Oxidation of Carbon Monoxide in Excess Hydrogen over Au/Co3O4- CeO2 Catalysts[J]. Journal of Rare Earths, 2005, 23(6): 695-700 |
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| Authors: | Zeng Shanghong Bai Xue Liu Yuan |
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| Abstract: | Au/Co3O4-CeO2 mixed-oxide catalysts were shown experimentally to be highly active and selective for the oxidation of CO in hydrogen-rich mixture. Activity was markedly influenced by the composition of the support, aging temperature and Au-loading temperature. It provided that single-step removal of CO from hydrogen-rich stream both in the absence and presence of CO2 and H2O to a PEMFC tolerant level. It was found that catalytic activity is greatly affected by adding CO2 in the mixture and increased by farther adding H2O. It meants H2O has the effect to rise catalytic activity. Moreover,it shows better stability with reaction time for the preferential CO oxidation. |
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| Keywords: | preferential oxidation CO hydrogen gold CeO2 rare earths |
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