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学科主题: 物理化学
题名: Surfactant effects on the microstructures of Fe3O4 nanoparticles synthesized by microemulsion method
作者: Lu, Ting1;  Wang, Junhu1, 2;  Yin, Jie1, 3;  Wang, Aiqin1;  Wang, Xiaodong1;  Zhang, Tao1, 2
通讯作者: 王晓东 ;  张涛
关键词: Surfactant effects ;  Fe3O4 nanoparticles ;  Microstructures ;  Microemulsion
刊名: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
发表日期: 2013-09-05
DOI: 10.1016/j.colsurfa.2013.08.004
卷: 436, 页:675-683
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
资助者: 1,1
研究领域[WOS]: Chemistry
英文摘要: A water-in-oil microemulsion route has been devised to synthesize nanosized magnetite (Fe3O4) particles using different kinds of surfactant as the surfactant phase, n-heptane as the oil phase, and n-hexanol as the co-surfactant phase, respectively. The X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fe-57 Mossbauer technique were employed to investigate the characteristic of the nanoparticles. The Fe3O4 powder derived from various microemulsions possessed an average spherical particle size of 13-15 nm based on TEM observation. The Fe-57 Mossbauer spectroscopy results reveal that surfactant structure plays an important role in regulating the microstructure of Fe3O4 nanoparticles. The relationships among the crystal lattice defect (vacancy parameter), magnetite stoichiometry and the surfactant structure have been discussed in terms of headgroup charge, hydrophobic chain length, headgroup size. The temperature effects on the particle size and defect are performed and the most remarkable factor of surfactant structures on the lattice defect and magnetite stoichiometry against the temperature variation is also discussed. Moreover, the influence of lattice defect and magnetite stoichiometry on the magnetic property has also been explored. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: ALKANEDIYL-ALPHA,OMEGA-BIS(DIMETHYLALKYLAMMONIUM BROMIDE) SURFACTANTS ;  IRON-OXIDE NANOPARTICLES ;  X-RAY-DIFFRACTION ;  MOSSBAUER-SPECTROSCOPY ;  MICELLAR EQUILIBRIA ;  GEMINI SURFACTANTS ;  AQUEOUS-SOLUTIONS ;  MAGNETITE ;  PARTICLES ;  EMULSIONS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000326416900084
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119458
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
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Lu, Ting,Wang, Junhu,Yin, Jie,et al. Surfactant effects on the microstructures of Fe3O4 nanoparticles synthesized by microemulsion method[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2013,436:675-683.
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