CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
The Influence of Silica Nanoparticles on Ionic Liquid Behavior: A Clear Difference between Adsorption and Confinement
Wang, Yaxing; Li, Cheng; Guo, Xiaojing; Wu, Guozhong
2013
Source PublicationINTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN1422-0067
Volume14Issue:10Pages:CONCATENATE(Sheet1!I360,-Sheet1!J360)
AbstractThe phase behaviors of ionic liquids (ILs) confined in nanospace and adsorbed on outer surface of nanoparticles are expected to be different from those of the bulk. Anomalous phase behaviors of room temperature ionic liquid tributylhexadecylphosphonium bromide (P44416Br) confined in ordered mesoporous silica nanoparticles with average pore size 3.7 nm and adsorbed on outer surface of the same silica nanoparticles were reported. It was revealed that the melting points (T-m) of confined and adsorbed ILs depressed significantly in comparison with the bulk one. The T-m depressions for confined and adsorbed ILs are 8 degrees C and 14 degrees C, respectively. For comparison with the phase behavior of confined P44416Br, 1-butyl-3-methylimidazolium bromide (BmimBr) was entrapped within silica nanopores, we observed an enhancement of 50 degrees C in T-m under otherwise similar conditions. The XRD analysis indicates the formation of crystalline-like phase under confinement, in contrast to the amorphous phase in adsorbed IL. It was confirmed that the behavior of IL has clear difference. Moreover, the complex - stacking and H-bonding do not exist in the newly proposed phosphonium-based IL in comparison with the widely studied imidazolium-based IL. The opposite change in melting point of P44416Br@SiO2 and BmimBr@SiO2 indicates that the cationic species plays an important role in the variation of melting point.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000328620900097
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13955
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Wang, Yaxing,Li, Cheng,Guo, Xiaojing,et al. The Influence of Silica Nanoparticles on Ionic Liquid Behavior: A Clear Difference between Adsorption and Confinement[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2013,14(10):CONCATENATE(Sheet1!I360,-Sheet1!J360).
APA Wang, Yaxing,Li, Cheng,Guo, Xiaojing,&Wu, Guozhong.(2013).The Influence of Silica Nanoparticles on Ionic Liquid Behavior: A Clear Difference between Adsorption and Confinement.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,14(10),CONCATENATE(Sheet1!I360,-Sheet1!J360).
MLA Wang, Yaxing,et al."The Influence of Silica Nanoparticles on Ionic Liquid Behavior: A Clear Difference between Adsorption and Confinement".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 14.10(2013):CONCATENATE(Sheet1!I360,-Sheet1!J360).
Files in This Item: Download All
File Name/Size DocType Version Access License
The Influence of Sil(287KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Yaxing]'s Articles
[Li, Cheng]'s Articles
[Guo, Xiaojing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Yaxing]'s Articles
[Li, Cheng]'s Articles
[Guo, Xiaojing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Yaxing]'s Articles
[Li, Cheng]'s Articles
[Guo, Xiaojing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: The Influence of Silica Nanoparticles on Ionic Liquid Behavior. A Clear Difference between Adsorption and Confinement.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.