| 钴系尖晶石型复合氧化物的甲烷催化燃烧性能研究 |
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| 引用本文： | 丁佳,罗来涛.钴系尖晶石型复合氧化物的甲烷催化燃烧性能研究[J].分子催化,2009,23(1). |
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| 作者姓名： | 丁佳 罗来涛 |
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| 作者单位： | 南昌大学应用化学研究所,江西,南昌,330031 |
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| 基金项目： | 高等学校博士学科点专项科研基金，江西省教育厅科研项目 |
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| 摘 要： | 采用共沉淀法合成了钴系尖晶石型Co0.5 M0.5 Co2O4(M=Mg、Zn、Ce)复合氧化物催化剂,考察了其对甲烷催化燃烧反应的催化活性,并运用FT-IR、XRD、BET及H2-TPR等技术对催化剂进行了表征.实验结果表明,Co0.5 Ce0.5 Co2 O4催化剂有较高的催化活性,与CoO. 5Mg0.5 Co2 O4和Co0.5Zn0.5Co2 O4催化剂相比,Co0.5 Ce0.5Co2 O4催化剂有较高的晶格畸变率、较大的比表面积和孔容、较小的晶粒度、较强的氧活动性和较低的甲烷催化燃烧表观活化能.
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| 关 键 词： | 钴系复合氧化物 尖晶石结构 金属氧化物 甲烷催化燃烧 |
Study on Co-based Mixed Oxides with Spinel-type Structure for Catalytic Combustion of Methane |
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| DING Ji,LUO Lai-tao.Study on Co-based Mixed Oxides with Spinel-type Structure for Catalytic Combustion of Methane[J].Journal of Molecular Catalysis (China),2009,23(1). |
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| Authors: | DING Ji LUO Lai-tao |
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| Institution: | Institute of Applied chemistry;Nanchang University;Nanchang 330031;China |
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| Abstract: | A series of Co0.5M0.5Co2O4(M=Mg,Zn,Ce) mixed oxides with spinel type structure were prepared by co-precipitation method,investigated in catalytic combustion of methane reaction and characterized by means of FT-IR,XRD,BET and H2-TPR techniques.Results indicated that the best catalytic activity was shown by Co0.5Ce0.5Co2O4 catalyst.Compared with Co0.5Mg0.5Co2O4 and Co0.5Zn0.5Co2O4 catalysts,Co0.5Ce0.5Co2O4 catalyst had higher lattice distortion,larger surface area and pore volume,smaller crystal size,stronger... |
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| Keywords: | Co-based mixed oxides spinel structure metal oxides catalytic combustion of methane |
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