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Molecules 2012, 17(4), 3858-3865; doi:10.3390/molecules17043858

Synthesis and Characterization of Fullerene Nanowhiskers by Liquid-Liquid Interfacial Precipitation: Influence of C60 Solubility

1
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
2
Fullerene Engineering Group, Materials Processing Unit, National Institute for Materials Science, 1-1, Namiki, Tsukuba, Ibaraki, 305-0044, Japan
*
Author to whom correspondence should be addressed.
Received: 12 March 2012 / Revised: 23 March 2012 / Accepted: 26 March 2012 / Published: 29 March 2012
(This article belongs to the Special Issue Fullerene Chemistry)
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Abstract

Fullerene nanowhiskers (FNWs) composed of C60 fullerene molecules were prepared using the liquid–liquid interfacial precipitation (LLIP) method in the carbon-disulfide (CS2) and isopropyl alcohol (IPA) system. The electron microscopic images reveal the formation of non-tubular FNWs. The X-ray diffraction (XRD) pattern studies indicate the presence of fcc crystalline structure and unusual triclinic structure in the FNWs. The selected area electron diffraction pattern (SAED) analysis demonstrates the existence of triclinic and electron beam assisted fcc to tetragonal crystalline phase transformation. The formation of triclinic structure might be validated due to the partial polymerization of FNWs at C60 saturated CS2-IPA interface. The high solubility of C60 in CS2 solvent system results in partial polymerization of FNWs. The polymerization of fullerene molecules in the FNWs has been further confirmed using Raman spectroscopy.
Keywords: fullerene nanowhiskers; polymerization; liquid-liquid interface; C60 solubility; fullerene fullerene nanowhiskers; polymerization; liquid-liquid interface; C60 solubility; fullerene
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sathish, M.; Miyazawa, K. Synthesis and Characterization of Fullerene Nanowhiskers by Liquid-Liquid Interfacial Precipitation: Influence of C60 Solubility. Molecules 2012, 17, 3858-3865.

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