1. Material Science and Engineering Research Group Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia
2. Department of Chemistry University College London 20 Gordon St. London WC1H0AJ UK
3. Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
4. Department of Chemical Engineering Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia