1. Department of Physics, PoreLab, Norwegian University of Science and Technology, S.P. Andersens vei 15 B, 7491 Trondheim, Norway
2. Department of Chemistry, PoreLab, Norwegian University of Science and Technology, S.P. Andersens vei 15 B, 7491 Trondheim, Norway
3. Department of Condensed Matter Physics, Universitat de Barcelona, Av.Diagonal 647, 08028 Barcelona, Spain
4. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, Richard Birkelands vei 2B, 7491 Trondheim, Norway