Issue 6, 2011
From the journal:

RSC Advances

Synthesis of zirconium carbide (ZrC) nanoparticles covered with graphitic “windows” by pulsed plasma in liquid

Liliang Chen,a   Chihiro Iwamoto,b   Emil Omurzak,c   Shintaro Takebe,c   Hiroki Okudera,d   Akira Yoshiasa,e   Saadat Sulaimankulovaf  and  Tsutomo Mashimo*g  

* Corresponding authors

a Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan

b Faculty of Engineering, Kumamoto University, Kumamoto, Japan

c Priority Organization for Innovation and Excellence, Kumamoto University, Kumamoto, Japan

d Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan

e Faculty of Science, Kumamoto University, Kumamoto, Japan

f Institute of Chemistry and Chemical Technology, National Academy of Sciences, Chui pr. 267, Bishkek, Kyrgyzstan

g Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto, Japan
E-mail: mashimo@gpo.kumamoto-u.ac.jp
Fax: +81 96 342 3293
Tel: +81 96 342 3295

Abstract

Cubic phase zirconium carbide (ZrC) nanoparticles encapsulated in graphitic carbon with an average size of about 10 nm were produced using pulsed plasma in liquid (PPL), in which zirconium metal electrodes provided the zirconium source and liquid ethanol the carbon. The quenching effect and near vacuum environment inherent in this pulsed plasma in liquid method resulted in the synthesis of nanoparticles with a uniform small size distribution and high purity. Lattice parameters of the obtained samples refined by the Rietveld method were larger than other reported data. Also, the emission lines of atoms Zr I, ions Zr II, atoms C I, ions C II and atoms H I were observed by an optical emission spectrum to gather information on the synthesis mechanism. The results of thermogravimetric and infrared ray emissivity of the nanoparticles showed that the graphitic carbon shells composed of a mere several layers with high transmissivity serve to act as “windows”, helping both to protect the ZrC nanoparticle inside from oxidation and to preserve its high infrared ray emissivity.

Graphical abstract: Synthesis of zirconium carbide (ZrC) nanoparticles covered with graphitic “windows” by pulsed plasma in liquid

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Article information

DOI
https://doi.org/10.1039/C1RA00194A
Article type
Paper
Submitted
20 May 2011
Accepted
01 Aug 2011
First published
14 Sep 2011

RSC Adv., 2011,1, 1083-1088

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Synthesis of zirconium carbide (ZrC) nanoparticles covered with graphitic “windows” by pulsed plasma in liquid

L. Chen, C. Iwamoto, E. Omurzak, S. Takebe, H. Okudera, A. Yoshiasa, S. Sulaimankulova and T. Mashimo, RSC Adv., 2011, 1, 1083 DOI: 10.1039/C1RA00194A

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