| 纳米CexFe1-xO2固溶体的模板法制备及其乙醇水蒸气重整催化性能 |
| |
| 引用本文： | 林红艳,马志强,丁玲,邱介山,梁长海.纳米CexFe1-xO2固溶体的模板法制备及其乙醇水蒸气重整催化性能[J].催化学报,2008,29(5):418-420. |
| |
| 作者姓名： | 林红艳 马志强 丁玲 邱介山 梁长海 |
| |
| 作者单位： | 大连理工大学材料化工系精细化工国家重点实验室,辽宁大连,116012 |
| |
| 基金项目： | 教育部跨世纪优秀人才培养计划
,
辽宁省大连市科技计划 |
| |
| 摘 要： | 以超高比表面炭材料为模板,硝酸盐为氧化物前体,通过改进的模板路线制备了具有较高比表面积的纳米CexFe1-xO2固溶体.采用X射线衍射、拉曼光谱、物理吸附和透射电镜对制备的样品进行了表征.结果表明,α-Fe2O3,CexFe1-xO2固溶体和CeO2的粒子尺寸为5~15nm,CeO2中部分Ce4 离子被Fe3 离子取代,从而形成了CexFe1-xO2固溶体.乙醇水蒸气重整反应结果显示,CexFe1-xO2固溶体比相应的α-Fe2O3和CeO2具有更高的催化活性和对氢气的选择性.
|
| 关 键 词： | Ce_xFe_(1-x)O_2 固溶体 乙醇水蒸气重整 模板技术 制氢 |
| 收稿时间： | 27 March 2008 |
Preparation of Nanoscale CexFe1-xO2 Solid Solution Catalyst by the Template Method and Its Catalytic Properties for Ethanol Steam Reforming |
| |
| LIN Hongyan,MA Zhiqiang,DING Ling,QIU Jieshan,LIANG Changhai.Preparation of Nanoscale CexFe1-xO2 Solid Solution Catalyst by the Template Method and Its Catalytic Properties for Ethanol Steam Reforming[J].Chinese Journal of Catalysis,2008,29(5):418-420. |
| |
| Authors: | LIN Hongyan MA Zhiqiang DING Ling QIU Jieshan LIANG Changhai |
| |
| Institution: | aState Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, Dalian University of Technology, Dalian 116012, Liaoning, China |
| |
| Abstract: | Nanoscale CexFe1-xO2 solid solutions with high surface area were prepared by a modified template route using an ultrahigh surface area carbon material as the template and nitrate as the oxide precursor. The resultant samples were characterized by XRD, N2 adsorption, Raman spectroscopy, and TEM. The results show that the particle sizes of α-Fe2O3, CexFe1-xO2 solid solutions, and CeO2 are 5–15 nm. Partial Ce4+ cations in the nanoscale CeO2 are substituted by Fe3+ cations, which results in the formation of CexFe1-xO2 solid solutions. The CexFe1-xO2 solid solutions have superior catalytic activity and selectivity for hydrogen in the ethanol steam reforming compared with the CeO2 and α-Fe2O3 catalysts. |
| |
| Keywords: | Ce_xFe_(1-x)O_2 solid solution ethanol steam reforming template route hydrogen production |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
