1. Fuel Cell Research Laboratory, School of Mechatronic Systems Engineering, Simon Fraser University, V3T 0A3 Surrey, British Columbia Canada
2. Fuelium S.L., Edifici Eureka, Av. Can Domènech S/N, 08193 Bellaterra, Barcelona Spain
3. Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), C/dels Til·lers sn, Campus UAB, 08193 Bellaterra Barcelona Spain
4. Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
5. BCMaterials, Basque Centre for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
6. IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain