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Journal of Materials
Volume 2015 (2015), Article ID 372716, 7 pages
http://dx.doi.org/10.1155/2015/372716
Research Article

On the Synthesis of Molybdenum Nanoparticles under Reducing Conditions in Ionic Liquids

1Materials Chemistry Unit, Department of Pure and Applied Chemistry, University of Calabar, PMB 1115, Calabar, Nigeria
2Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, Building 26, 14476 Golm, Germany
3Max Planck Institute of Colloids and Interfaces, 14476 Golm, Germany

Received 26 June 2015; Accepted 18 August 2015

Academic Editor: Huan-Tsung Chang

Copyright © 2015 Ayi A. Ayi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report on attempts to synthesize Mo nanoparticles under reducing conditions in ionic liquids (ILs). Ionic liquids were based on the 1-ethyl-3-methylimidazolium or 1-butyl-3-methylimidazolium (Emim and Bmim, resp.) cations and the dicyanamide N(CN)2, triflate (OTf), bis(trifluoromethylsulfonyl)imide-(NTf2), tetrafluoroborate (BF4), ethyl sulfate (ES), and methylsulfonate (MS) anions. (NH4)6Mo7O24∗4H2O and NaBH4 were reacted in a set of imidazolium ionic liquids (ILs) at 180°C to evaluate the potential of the ILs for stabilization of metallic Mo nanoparticles. XRD and TEM reveal a strong influence of the IL anion on the particle sizes, shapes, and crystal structures. The influence of the IL cation and the reaction temperature is much less pronounced.