1. Department of Chemical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-Ville, Montréal, Québec H3C 3A7, Canada
2. Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
3. Energy, Mining and Environment Research Centre, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada