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Title: Growth of Gold Nanosheets and Nanopolyhedra in Pyrrolidinium-Based Ionic Liquids: Investigation of the Cation Effect on the Resulting Morphologies

Abstract

Large gold nanosheets and small gold polyhedra have been successfully synthesized in room-temperature ionic liquids (ILs) by an ionothermal reduction of HAuCl{sub 4} under N{sub 2} atmosphere, without using any additives. The effect of the organic cation on the final morphologies of the gold particles has been studied, and a series of pyrrolidinium-, imidazolium-, and quaternary amine-based ionic liquids have been investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurements. Our results show that these ILs favor the anisotropic growth of gold by acting as template agents and that only gold microspheres can be obtained with the IL containing a reductive functionality.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1044698
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Crystal Growth & Design
Additional Journal Information:
Journal Volume: 10; Journal Issue: 3; Journal ID: ISSN 1528-7483
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ADDITIVES; CATIONS; GOLD; MICROSPHERES; MOLTEN SALTS; SCANNING ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Bouvy, Claire, Baker, Gary A, Yin, Hongfeng, and Dai, Sheng. Growth of Gold Nanosheets and Nanopolyhedra in Pyrrolidinium-Based Ionic Liquids: Investigation of the Cation Effect on the Resulting Morphologies. United States: N. p., 2010. Web. doi:10.1021/cg9013575.
Bouvy, Claire, Baker, Gary A, Yin, Hongfeng, & Dai, Sheng. Growth of Gold Nanosheets and Nanopolyhedra in Pyrrolidinium-Based Ionic Liquids: Investigation of the Cation Effect on the Resulting Morphologies. United States. doi:10.1021/cg9013575.
Bouvy, Claire, Baker, Gary A, Yin, Hongfeng, and Dai, Sheng. Fri . "Growth of Gold Nanosheets and Nanopolyhedra in Pyrrolidinium-Based Ionic Liquids: Investigation of the Cation Effect on the Resulting Morphologies". United States. doi:10.1021/cg9013575.
@article{osti_1044698,
title = {Growth of Gold Nanosheets and Nanopolyhedra in Pyrrolidinium-Based Ionic Liquids: Investigation of the Cation Effect on the Resulting Morphologies},
author = {Bouvy, Claire and Baker, Gary A and Yin, Hongfeng and Dai, Sheng},
abstractNote = {Large gold nanosheets and small gold polyhedra have been successfully synthesized in room-temperature ionic liquids (ILs) by an ionothermal reduction of HAuCl{sub 4} under N{sub 2} atmosphere, without using any additives. The effect of the organic cation on the final morphologies of the gold particles has been studied, and a series of pyrrolidinium-, imidazolium-, and quaternary amine-based ionic liquids have been investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurements. Our results show that these ILs favor the anisotropic growth of gold by acting as template agents and that only gold microspheres can be obtained with the IL containing a reductive functionality.},
doi = {10.1021/cg9013575},
journal = {Crystal Growth & Design},
issn = {1528-7483},
number = 3,
volume = 10,
place = {United States},
year = {2010},
month = {1}
}