| Magnetic CoFe2O4 nanocrystal: A novel and efficient heterogeneous catalyst for aerobic oxidation of cyclohexane | |
| Department | 羰基合成与选择氧化国家重点实验室 |
Tong JH(童金辉); Bo LL(柏丽丽); Li Z(李臻) ; Lei ZQ(雷自强); Xia CG(夏春谷)
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| 2009 | |
| Source Publication | Journal of Molecular Catalysis A: Chemical
 |
| ISSN | 1381-1169 |
| Volume | 307Pages:58-63 |
| Abstract | 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. |
| Keyword | Magnetic Nanocrystals Cofe2o4 Spinel Oxygen Cyclohexane Oxidation |
| Subject Area | 清洁催化与生物转化 |
| Funding Organization | the National Science Fund for Distinguished Young Scholars of China (20625308) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 分子催化与技术研究组 ; 清洁催化与生物转化研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/568 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Xia CG(夏春谷) |
| Recommended Citation GB/T 7714 | Tong JH,Bo LL,Li Z,et al. 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 | 童金辉,柏丽丽,李臻,雷自强,&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 | 童金辉,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. |
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| B2_J.Mol.Catal.A Che（661KB） | 开放获取 | License | View Application Full Text | |||
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