Efficient magnetic CoFe2O4 nanocrystal catalyst for aerobic oxidation of cyclohexane prepared by sol-gel auto-combustion method: effects of catalyst preparation parameters

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	Efficient magnetic CoFe2O4 nanocrystal catalyst for aerobic oxidation of cyclohexane prepared by sol-gel auto-combustion method: effects of catalyst preparation parameters
	Tong JH(童金辉)1,2; Cai, Xiaodong 1,2; Wang, Haiyan 1,2; Xia CG(夏春谷)3
刊名	Journal of Sol-Gel Science and Technology
	2013
卷号	66 期号:3 页码:452-459
关键词	Magnetic cobalt ferrite Metal concentration pH value Cyclohexane oxidation
ISSN号	0928-0707
通讯作者	夏春谷
英文摘要	Six magnetic spinel-type CoFe₂O₄ samples were prepared in the form of powder by a simple sol–gel autocombustion method from precursor solutions with different metal concentrations (0.1–0.3 mol L^-¹) and pH values (＜1–10). The samples were characterized by X-ray diffractometry, Fourier transform infrared spectrophotometry, transmission electron microscopy and N₂-physisorption. Their catalytic performances for oxidation of cyclohexane were evaluated using oxygen as oxidant in the absence of solvents. The results show that pH values and metal concentrations of precursor solutions play important roles in the sizes, dispersions and morphologies of the CoFe₂O₄ nanoparticles, and thus in their catalytic performances. The sample resulted from precursor solution under the conditions of pH = 7 and metal concentration = 0.1 mol L^-¹ with the largest surface area, exhibited the best catalytic performance with the highest cyclohexane conversion of 13.7 % and selectivity of 93.9 % for cyclohexanol and cyclohexanone. The CoFe₂O₄ nanocrystal is also found an efficient catalyst for oxidation of aliphatic and aromatic alkenes.
学科主题	物理化学与绿色催化
收录类别	SCI
资助信息	the National Science Fund for Distinguished Young Scholars of China (20625308);Scientific Research Fund of Northwest Normal University (NWNULKQN-10-28);Program for Changjiang Scholars and Innovative Research Team in University (IRT1177)
语种	英语
WOS记录号	WOS:000320284100013
公开日期	2013-12-24
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4874]
专题	兰州化学物理研究所_OSSO国家重点实验室
作者单位	1.Minist Educ, Key Lab Ecoenvironm Related Polymer Mat, Lanzhou 730070, Peoples R China 2.Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Gansu Polymer Mat, Lanzhou 730070, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Tong JH,Cai, Xiaodong,Wang, Haiyan,et al. Efficient magnetic CoFe2O4 nanocrystal catalyst for aerobic oxidation of cyclohexane prepared by sol-gel auto-combustion method: effects of catalyst preparation parameters[J]. Journal of Sol-Gel Science and Technology,2013,66(3):452-459.
APA	Tong JH,Cai, Xiaodong,Wang, Haiyan,&Xia CG.(2013).Efficient magnetic CoFe2O4 nanocrystal catalyst for aerobic oxidation of cyclohexane prepared by sol-gel auto-combustion method: effects of catalyst preparation parameters.Journal of Sol-Gel Science and Technology,66(3),452-459.
MLA	Tong JH,et al."Efficient magnetic CoFe2O4 nanocrystal catalyst for aerobic oxidation of cyclohexane prepared by sol-gel auto-combustion method: effects of catalyst preparation parameters".Journal of Sol-Gel Science and Technology 66.3(2013):452-459.