| Ce0.63Zr0.37MnxO2复合氧化物在CH4选择性催化还原NO反应中的研究 |
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| 引用本文： | 房华,蔡黎,刘萍,赵明,张丽娟,龚茂初,陈耀强.Ce0.63Zr0.37MnxO2复合氧化物在CH4选择性催化还原NO反应中的研究[J].化学研究与应用,2006,18(6):676-679. |
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| 作者姓名： | 房华 蔡黎 刘萍 赵明 张丽娟 龚茂初 陈耀强 |
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| 作者单位： | 四川大学化学学院,四川,成都,610064 |
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| 基金项目： | 国家自然科学基金;中国科学院资助项目 |
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| 摘 要： | 以Ce0.63Zr0.37MnxO2复合氧化物(OSM)为载体,Pt为活性组分,制备Pt质量百分含量为1%的催化剂。考察了OSM中Mn含量对CH4催化还原NO反应的性能,并利用XRD和H2-TPR对催化剂进行了表征。结果表明Pt/OSM催化剂在有氧条件下对CH4催化还原NO具有较好的催化活性,Mn含量为10%和15%的OSM制备的催化剂活性最好。XRD结果表明,Ce0.63Zr0.37MnxO2复合氧化物以固熔体形式存在,且Pt高度分散于载体上。H2-TPR结果表明,Pt/OSM2和Pt/OSM3催化剂具有较强的可还原性能,而Pt/OSM1和Pt/OSM4催化剂的可还原性能较弱。
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| 关 键 词： | Ce0.63Zr0.37MnxO2复合氧化物(OSM) Pt CH4 NO 选择性催化还原 |
| 文章编号： | 1004-1656（2006）06-0676-04 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-04-11 |
Study of Ce0.63Zr0.37MnXO2 compound oxides on selective catalytic reduction of NO by CH4 |
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| FANG Hua,CAI Li,LIU Ping,ZHAO Ming,ZHANG Li-juan,GONG Mao-chu,CHEN Yao-qiang.Study of Ce0.63Zr0.37MnXO2 compound oxides on selective catalytic reduction of NO by CH4[J].Chemical Research and Application,2006,18(6):676-679. |
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| Authors: | FANG Hua CAI Li LIU Ping ZHAO Ming ZHANG Li-juan GONG Mao-chu CHEN Yao-qiang |
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| Institution: | Colleg of Chemistry , Sichuan University, Chengdu 610064, China |
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| Abstract: | Ce_(0.63)Zr_(0.37)Mn_xO_2 compound oxided(OSM)was prepared by co-precipitation.The catalysts of Pt/OSM were prepared by impregnation with platinum loading 1wt%.The catalysts were characterized by XRD and H_2-TPR,and were investigated for the selective catalytic reduction of NO by methane.The result revealed that Pt/OSM have high activities for the catalytic reduction of NO by methane in the presence of O_2.XRD revealed that platinum was highly dispersed on OSM.H_2-TPR revealed that Pt/OSM have high reductive. |
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| Keywords: | oxygen storage materials La-Al_2O_3 platinum monolithic catalyst NO selective catalytic reduction |
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