1. Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus
2. Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1 Panepistimiou Avenue, Nicosia 2109, Cyprus
3. Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Lemesos 3036, Cyprus
4. Department of Materials Science, Montanuniversität Leoben, Franz Josef-Strasse 18, 8700 Leoben, Austria