Magnetic CoFe2O4 nanocrystal: A novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane
文献类型：期刊论文
| 作者 | Li Z(李臻) ; Xia CG(夏春谷)
|
| 刊名 | Journal of Molecular Catalysis A: Chemical
 |
| 出版日期 | 2009 |
| 卷号 | 307页码:58-63 |
| 关键词 | Magnetic nanocrystals CoFe2O4 spinel Oxygen Cyclohexane oxidation |
| ISSN号 | 1381-1169 |
| 通讯作者 | 夏春谷 |
| 中文摘要 | Magnetic nanocrystalline spinel-type cobalt ferrite complex oxides were prepared by a simple sol–gel auto-combustion method at five different molar ratios of CoII to FeIII (1:4.0, 1:2.8, 1:2.0, 1:1.5, and 1:1.1) and characterized by X-ray diffractometry (XRD), Fourier transform infrared spectrophotometry (FT-IR) and transmission electron microscopy (TEM). Their catalytic performancewas evaluated in the oxidation of cyclohexane with oxygen as oxidant in the presence of neither solvents nor reducing agents. It has been revealed that the catalysts had high catalytic activities for heterogeneous oxidation of cyclohexane. Especially, when pure CoFe2O4 was used as catalyst; excellent results with turnover number of 288 and 92.4% selectivity for cyclohexanone and cyclohexanol was obtained under 1.6MPa of initial oxygen pressure at 418K after 6.0 h of reaction. The influences of initial oxygen pressure, reaction temperature, reaction time, and free-radical initiator on the oxidation of cyclohexane over CoFe2O4 were investigated. The catalyst can be easily separated by an external magnet and no obvious loss of activity was observed when reused in five consecutive runs. CoFe2O4 was proved to be also efficient for oxidation of linear alkanes. |
| 学科主题 | 清洁催化与生物转化 |
| 收录类别 | SCI |
| 资助信息 | the National Science Fund for Distinguished Young Scholars of China (20625308) |
| 语种 | 英语 |
| WOS记录号 | WOS:000267625000009 |
| 公开日期 | 2012-09-21 |
| 源URL | [http://210.77.64.217/handle/362003/568]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Xia CG(夏春谷) |
| 推荐引用方式 GB/T 7714 | Li Z,Xia CG. Magnetic CoFe2O4 nanocrystal: A novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane[J]. Journal of Molecular Catalysis A: Chemical,2009,307:58-63. |
| APA | 李臻,&夏春谷.(2009).Magnetic CoFe2O4 nanocrystal: A novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane.Journal of Molecular Catalysis A: Chemical,307,58-63. |
| MLA | 李臻,et al."Magnetic CoFe2O4 nanocrystal: A novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane".Journal of Molecular Catalysis A: Chemical 307(2009):58-63. |
入库方式： OAI收割
来源：兰州化学物理研究所
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