| 非贵金属催化剂用于CO选择性氧化脱除的研究 |
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| 引用本文： | 周桂林,蒋毅,邱发礼.非贵金属催化剂用于CO选择性氧化脱除的研究[J].燃料化学学报,2011,39(4):293-299. |
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| 作者姓名： | 周桂林 蒋毅 邱发礼 |
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| 作者单位： | 1.College of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, China;
2.Laboratory of Catalysis, Ministry of Education Engineering Research Centre, Chongqing 400067, China;
3.Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China |
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| 基金项目： | 重庆市教委科学技术研究(KJ100729); 重庆高校创新团队建设计划(KGTD201020) |
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| 摘 要： | 以Co和Ni为催化剂活性组分、活性炭为载体，通过饱和浸渍法制得非贵金属催化剂，采用XRD、SEM和TPD对催化剂性能进行表征，考察了该催化剂用于富氢气中CO选择性氧化活性及H2O或/和CO2对催化性能的影响。研究结果表明，催化剂以NiO和高分散的Co3O4为主要物相，催化剂吸附O2的能力随着金属氧化物负载量的增加而增加，且催化剂对O2分子的吸附能力明显强于CO2分子。金属氧化物负载量为35%的催化剂表现出较高的CO选择性氧化活性和选择性，在低于473K时O2氧化选择性达50%以上，此时可将CO浓度降到40×10-6以下，达到燃料电池对氢燃料气的要求。同时，催化剂表现出较强的抗水蒸气和CO2的能力。
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| 关 键 词： | 富氢气 一氧化碳(CO) 选择性氧化 非贵金属催化剂 |
| 收稿时间： | 2010-06-17 |
Preferential oxidation of CO in H_2-rich stream on non-noble metal catalyst |
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| ZHOU Gui-lin,JIANG Yi,QIU Fa-li.Preferential oxidation of CO in H_2-rich stream on non-noble metal catalyst[J].Journal of Fuel Chemistry and Technology,2011,39(4):293-299. |
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| Authors: | ZHOU Gui-lin JIANG Yi QIU Fa-li |
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| Institution: | ZHOU Gui-lin1,2,JIANG Yi3,QIU Fa-li3(1.College of Environmental and Biological Engineering,Chongqing Technology and Business University,Chongqing 400067,China2.Laboratory of Catalysis,Ministry of Education Engineering Research Centre,China3.Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,Chengdu 610041,China) |
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| Abstract: | A non-noble metal catalyst was prepared by loading cobalt and nickel on activated carbon through saturated impregnation;it was characterized by XRD,SEM and TPD and used in preferential oxidation of CO in H2-rich stream.The influence of water vapor and/or CO2 on the performance of this non-noble metal catalyst was also examined.The results indicted that NiO and finely dispersed Co3O4 are formed in the catalyst;the catalyst exhibits stronger adsorption ability to O2 than to CO2 and the adsorption ability to O... |
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| Keywords: | excess hydrogen gas carbon monoxide(CO) selective catalytic oxidation non-noble metal catalyst |
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