1. Université de Paris, Laboratoire d’Electrochimie Moléculaire, CNRS, UMR 7591, F-75013 Paris, France
2. Nanotechnology Research Centre, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
3. Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
4. Chimie du Solide et de l’Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France