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题名: Cobalt nanowires prepared by heterogeneous nucleation in propanediol and their catalytic properties
作者: Liu, Qiying1;  Guo, Xiaohui1;  Chen, Junli1;  Li, Juan1;  Song, Wei1;  Shen, Wenjie1
通讯作者: 申文杰
刊名: NANOTECHNOLOGY
发表日期: 2008-09-10
DOI: 10.1088/0957-4484/19/36/365608
卷: 19, 期:36, 页:365608-365608
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 501
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Co nanowires with a diameter of 10 nm and a length up to 1000 nm were synthesized by the chemical reduction of cobalt acetate in propanediol using Ru as the heterogeneous agent and stearic acid as the surfactant. The morphology of the Co nanomaterials depended strongly on the concentrations of stearic acid and sodium hydroxide and the temperature, which governed the reduction rate of Co(2+) in the liquid and the growth rate of Co nanocrystals. Very tiny Ru nanoparticles formed at the beginning of the synthesis significantly lowered the reduction temperature of Co(2+) species, affording an easy separation and growth of Co nanocrystals. Solid cobalt stearate and cobalt alkoxide were readily formed at the initial stage of the synthesis, which determined the reduction rate of Co(2+) through a dynamic equilibrium between the solid and the solution. In addition to forming cobalt stearate, the stearic acid, as a structure-directing agent, mainly induced the anisotropic growth of Co nanocrystals. The Co nanowires as heterogeneous catalysts showed quite promising activity and selectivity for the hydrogenation of citral and the hydrogenolysis of glycerol.
关键词[WOS]: UNIFORM SILVER NANOWIRES ;  POLYOL SYNTHESIS ;  MAGNETIC NANOPARTICLES ;  METAL ;  PARTICLES ;  SHAPE ;  SIZE ;  NANOSTRUCTURES ;  SUPERLATTICES ;  NANORODS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000258021700016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100203
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Qiying,Guo, Xiaohui,Chen, Junli,et al. Cobalt nanowires prepared by heterogeneous nucleation in propanediol and their catalytic properties[J]. NANOTECHNOLOGY,2008,19(36):365608-365608.
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