中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Immobilization and molecular rearrangement of ionic liquids on the surface of carbon nanotubes

文献类型:期刊论文

作者Zhao, Cuifang1,2; Ren, Baozeng1; Song, Yuting2; Zhang, Junling2; Wei, Lingchao1; Chen, Shimou2; Zhang, Suojiang2
刊名RSC ADVANCES
出版日期2014
卷号4期号:31页码:16267-16273
关键词FREQUENCY GENERATION SPECTROSCOPY MELTING-POINT PHOTOELECTRON-SPECTROSCOPY CRYSTAL-STRUCTURES IMIDAZOLIUM INTERFACE GOLD TETRAFLUOROBORATE SUBSTITUENTS CATALYSIS
ISSN号2046-2069
其他题名RSC Adv.
中文摘要Two imidazolium-based ionic liquids (ILs), i.e. [Bnmim][BF4] (1-benzyl-3-methylimidazolium tetrafluoroborate) and [Bmim][AuCl4] (1-butyl-3-methylimidazolium chloroauric acid), were adsorbed on the outer surface of multi-walled carbon nanotubes (MWCNTs) via a physical method. In order to understand the molecular packing of ILs immobilized on the MWCNTs surfaces, composite samples with different weight ratios of ILs were characterized by using X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). It was found that the rings of imidazolium cations of ILs are nearly parallel to the MWCNTs surfaces, and the packing orientation is determined by the substituent groups on the imidazolium-ring. Both the anions ([BF4](-) and [AuCl4](-)) occupy an adjacent area to the imidazolium cation to form a neutral surface layer. Furthermore, for the immobilized ILs, the melting point (Tm) of [Bmim][AuCl4] rises slightly, while the Tm of [Bnmim][BF4] gets depressed. The molecular rearrangement and the melting point change of the immobilized ILs result from the complex interfacial interactions between the ILs and the MWCNTs surfaces.
英文摘要Two imidazolium-based ionic liquids (ILs), i.e. [Bnmim][BF4] (1-benzyl-3-methylimidazolium tetrafluoroborate) and [Bmim][AuCl4] (1-butyl-3-methylimidazolium chloroauric acid), were adsorbed on the outer surface of multi-walled carbon nanotubes (MWCNTs) via a physical method. In order to understand the molecular packing of ILs immobilized on the MWCNTs surfaces, composite samples with different weight ratios of ILs were characterized by using X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). It was found that the rings of imidazolium cations of ILs are nearly parallel to the MWCNTs surfaces, and the packing orientation is determined by the substituent groups on the imidazolium-ring. Both the anions ([BF4](-) and [AuCl4](-)) occupy an adjacent area to the imidazolium cation to form a neutral surface layer. Furthermore, for the immobilized ILs, the melting point (Tm) of [Bmim][AuCl4] rises slightly, while the Tm of [Bnmim][BF4] gets depressed. The molecular rearrangement and the melting point change of the immobilized ILs result from the complex interfacial interactions between the ILs and the MWCNTs surfaces.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]FREQUENCY GENERATION SPECTROSCOPY ; MELTING-POINT ; PHOTOELECTRON-SPECTROSCOPY ; CRYSTAL-STRUCTURES ; IMIDAZOLIUM ; INTERFACE ; GOLD ; TETRAFLUOROBORATE ; SUBSTITUENTS ; CATALYSIS
收录类别SCI
原文出处://WOS:000334681800055
语种英语
WOS记录号WOS:000334681800055
公开日期2014-08-28
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/11047]  
专题过程工程研究所_研究所(批量导入)
作者单位1.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Beijing Key Lab Ion Liq, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Cuifang,Ren, Baozeng,Song, Yuting,et al. Immobilization and molecular rearrangement of ionic liquids on the surface of carbon nanotubes[J]. RSC ADVANCES,2014,4(31):16267-16273.
APA Zhao, Cuifang.,Ren, Baozeng.,Song, Yuting.,Zhang, Junling.,Wei, Lingchao.,...&Zhang, Suojiang.(2014).Immobilization and molecular rearrangement of ionic liquids on the surface of carbon nanotubes.RSC ADVANCES,4(31),16267-16273.
MLA Zhao, Cuifang,et al."Immobilization and molecular rearrangement of ionic liquids on the surface of carbon nanotubes".RSC ADVANCES 4.31(2014):16267-16273.

入库方式: OAI收割

来源:过程工程研究所

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