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Title: Crystallization control of SrCO{sub 3} nanostructure in imidazolium-based temperature ionic liquids

Abstract

Highlights: ► Nanowhisker, nanospindle, nanosphere, sphere, spindle, rodlike SrCO{sub 3} were obtained. ► Nanowhisker, nanospindle SrCO{sub 3} were auto-assembled in [C{sub 8}mim]BF{sub 4} and [HOEtMIm]NT{sub f2}. ► Small size and rough surface particle show low starting decomposition temperature. ► This method is simple, easy to control in large-scale producing SrCO{sub 3} nanostructure. -- Abstract: Strontium carbonate nanostructures, with unique nanowhisker, nanospindle, nanosphere, sphere, spindle, and rodlike hierarchical structure, were synthesized in imidazolium-based room temperature ionic liquids [C{sub 4}mim]PF{sub 6}, [C{sub 4}mim]Cl, [C{sub 8}mim]Br, [C{sub 8}mim]BF{sub 4}, and [HOEtMIm]NT{sub f2}. The nanostructures were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and thermogravimetric analysis. The results show that the morphologies of SrCO{sub 3} were strongly dependent on the nature of the corresponding RILs, its content, and the reaction temperature. RILs can act as structure-directing agent, leading the auto-assembly of SrCO{sub 3} crystal. [C{sub 8}mim]BF{sub 4} and [HOEtMIm]NT{sub f2} favored the production of nanowhisker and nanospindle SrCO{sub 3}, respectively, whereas [C{sub 4}mim]PF{sub 6} favored the production of nanosphere. Small particles were obtained at high reaction temperature. Low starting decomposition temperature was observed. Finally, the formation mechanism of the SrCO{sub 3} crystal was preliminary presented.

Authors:
 [1];  [2];  [3]; ;  [1]
  1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004 (China)
  2. (China)
  3. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
22215542
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CRYSTAL GROWTH; CRYSTALLIZATION; CRYSTALS; DECOMPOSITION; FIELD EMISSION; LIQUIDS; MOLTEN SALTS; NANOSTRUCTURES; SCANNING ELECTRON MICROSCOPY; STRONTIUM CARBONATES; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Li, Lishuo, E-mail: li_lishuo@163.com, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, Lin, Rongyi, E-mail: linry@home.ipe.ac.cn, Tong, Zhangfa, and Feng, Qingge. Crystallization control of SrCO{sub 3} nanostructure in imidazolium-based temperature ionic liquids. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.08.027.
Li, Lishuo, E-mail: li_lishuo@163.com, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, Lin, Rongyi, E-mail: linry@home.ipe.ac.cn, Tong, Zhangfa, & Feng, Qingge. Crystallization control of SrCO{sub 3} nanostructure in imidazolium-based temperature ionic liquids. United States. doi:10.1016/J.MATERRESBULL.2012.08.027.
Li, Lishuo, E-mail: li_lishuo@163.com, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, Lin, Rongyi, E-mail: linry@home.ipe.ac.cn, Tong, Zhangfa, and Feng, Qingge. Thu . "Crystallization control of SrCO{sub 3} nanostructure in imidazolium-based temperature ionic liquids". United States. doi:10.1016/J.MATERRESBULL.2012.08.027.
@article{osti_22215542,
title = {Crystallization control of SrCO{sub 3} nanostructure in imidazolium-based temperature ionic liquids},
author = {Li, Lishuo, E-mail: li_lishuo@163.com and National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190 and Lin, Rongyi, E-mail: linry@home.ipe.ac.cn and Tong, Zhangfa and Feng, Qingge},
abstractNote = {Highlights: ► Nanowhisker, nanospindle, nanosphere, sphere, spindle, rodlike SrCO{sub 3} were obtained. ► Nanowhisker, nanospindle SrCO{sub 3} were auto-assembled in [C{sub 8}mim]BF{sub 4} and [HOEtMIm]NT{sub f2}. ► Small size and rough surface particle show low starting decomposition temperature. ► This method is simple, easy to control in large-scale producing SrCO{sub 3} nanostructure. -- Abstract: Strontium carbonate nanostructures, with unique nanowhisker, nanospindle, nanosphere, sphere, spindle, and rodlike hierarchical structure, were synthesized in imidazolium-based room temperature ionic liquids [C{sub 4}mim]PF{sub 6}, [C{sub 4}mim]Cl, [C{sub 8}mim]Br, [C{sub 8}mim]BF{sub 4}, and [HOEtMIm]NT{sub f2}. The nanostructures were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and thermogravimetric analysis. The results show that the morphologies of SrCO{sub 3} were strongly dependent on the nature of the corresponding RILs, its content, and the reaction temperature. RILs can act as structure-directing agent, leading the auto-assembly of SrCO{sub 3} crystal. [C{sub 8}mim]BF{sub 4} and [HOEtMIm]NT{sub f2} favored the production of nanowhisker and nanospindle SrCO{sub 3}, respectively, whereas [C{sub 4}mim]PF{sub 6} favored the production of nanosphere. Small particles were obtained at high reaction temperature. Low starting decomposition temperature was observed. Finally, the formation mechanism of the SrCO{sub 3} crystal was preliminary presented.},
doi = {10.1016/J.MATERRESBULL.2012.08.027},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}