Catalytic combustion of methane over mixed oxides derived from Co-Mg/Al ternary hydrotalcites
文献类型：期刊论文
| 作者 | Jiang, Zheng; Yu, Junjie; Cheng, Jie; Mao, Tiancun; Jones, Martin O.; Hao, Zhengping; Edwards, Peter P. |
| 刊名 | FUEL PROCESSING TECHNOLOGY
 |
| 出版日期 | 2010-01 |
| 卷号 | 91期号:1页码:97-102 |
| 关键词 | Catalytic combustion Methane Cobalt Hydrotalcite Mixed oxide |
| 中文摘要 | Co(x)Mg(3-x)/Al composite oxides (xCoMAO-800) were prepared by calcination of Co(x)Mg(3-x)/Al hydrotalcites (x = 0.0, 0.5,1.0,1.5,2.0,2.5,3.0, respectively) at 800 degrees C. The materials were characterized using XRD, TG-DSC, N(2) adsorption-desorption and TPR. The methane catalytic combustion over the xCoMAO-800 was assessed in a fixed bed micro-reactor. The results revealed that cobalt can be homogenously dispersed into the matrices of the hydrotalcites and determines the structure, specific surface areas and porosity of the derived xCoMAO-800 oxide catalysts. The thermal stability and homogeneity of the hydrotalcites markedly depends on the cobalt concentration in the hydrotalcites. The Co-based hydrotalcite-derived oxides exhibit good activity in the catalytic combustion of methane. The catalytic activity over the xCoMAO-800 oxides enhances with increasing x up to 1.5, but subsequently decreases dramatically as cobalt loadings are further increased. The 1.5CoMAO-800 catalyst shows the best methane combustion activity, igniting methane at 450 degrees C and completing methane combustion around 600 degrees C. The catalytic combustion activity over the xCoMAO-800 oxides are closely related to the strong Co-Mg/Al interaction within the mixed oxides according to the TG-DSC, TPR and activity characteristics. (C) 2009 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000273189700012 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21175]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 推荐引用方式 GB/T 7714 | Jiang, Zheng,Yu, Junjie,Cheng, Jie,et al. Catalytic combustion of methane over mixed oxides derived from Co-Mg/Al ternary hydrotalcites[J]. FUEL PROCESSING TECHNOLOGY,2010,91(1):97-102. |
| APA | Jiang, Zheng.,Yu, Junjie.,Cheng, Jie.,Mao, Tiancun.,Jones, Martin O..,...&Edwards, Peter P..(2010).Catalytic combustion of methane over mixed oxides derived from Co-Mg/Al ternary hydrotalcites.FUEL PROCESSING TECHNOLOGY,91(1),97-102. |
| MLA | Jiang, Zheng,et al."Catalytic combustion of methane over mixed oxides derived from Co-Mg/Al ternary hydrotalcites".FUEL PROCESSING TECHNOLOGY 91.1(2010):97-102. |
入库方式： OAI收割
来源：生态环境研究中心
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