1. Department of Green Technology, University of Southern Denmark, Campusvej 55, 5230Odense, Denmark
2. NANOSYD, The Mads Clausen Institute, University of Southern Denmark, Alison 2, 6400Sønderborg, Denmark
3. IRD Fuel Cells A/S, Emil Neckelmanns Vej 15, 5220Odense, Denmark