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题名: Preparation, structure and catalytic properties of magnetically separable Cu-Fe catalysts for glycerol hydrogenolysis
作者: Xiao, Zihui1;  Jin, Shaohua1;  Wang, Xinkui1;  Li, Wenzhen2;  Wang, Junhu3;  Liang, Changhai1
刊名: JOURNAL OF MATERIALS CHEMISTRY
发表日期: 2012
DOI: 10.1039/c2jm32869k
卷: 22, 期:32, 页:16598-16605
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: The Cu-Fe catalysts with stoichiometric proportion (Cu/Fe molar ratio was 0.5) were prepared by an epoxide assisted route. The structural properties of Cu-Fe catalysts were determined by X-ray diffraction (XRD), and Mossbauer spectroscopy measurements. These results indicated that a crystalline phase transformation from c-CuFe2O4 to t-CuFe2O4 occurred when elevating the calcination temperature from 500 to 600 degrees C. The M-H plots exhibited that all Cu-Fe catalysts had ferromagnetic nature and the saturation magnetization values monotonously increased with increasing calcination temperature irrespective of the phases composition. The significant superparamagnetic behavior was observed in the results of magnetic and Mossbauer spectroscopy measurements. The H-2 temperature-programmed reduction (H-2-TPR) was also conducted for examining the reducibility of Cu-Fe catalysts. The catalytic performance of Cu-Fe catalysts was examined for the hydrogenolysis reaction of glycerol. It is found that the formation of spinel CuFe2O4 greatly enhances the hydrogenolysis activity. The highest glycerol conversion (47%) was obtained over CuFe-500 catalyst, while the selectivity of 1,2-propanediol was maintained at about 92% for all catalysts.
关键词[WOS]: SURFACE-AREA ;  COPPER FERRITES ;  CUFE2O4 ;  TEMPERATURE ;  REDUCTION ;  PARTICLES ;  OXIDE ;  NANOPARTICLES ;  DISPERSION ;  SYSTEM
语种: 英语
WOS记录号: WOS:000306708700062
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143074
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Lab Adv Mat & Catalyt Engn, Dalian 116024, Peoples R China
2.Michigan Technol Univ, Dept Chem Engn, Houghton, MI 49931 USA
3.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Xiao, Zihui,Jin, Shaohua,Wang, Xinkui,et al. Preparation, structure and catalytic properties of magnetically separable Cu-Fe catalysts for glycerol hydrogenolysis[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(32):16598-16605.
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