1. Department of Chemical & Biomolecular Engineering, University of California Irvine, Irvine, California 92617, United States
2. National Fuel Cell Research Center, University of California Irvine, Irvine, California 92617, United States
3. Department of Materials Science & Engineering, University of California Irvine, Irvine, California 92617, United States
4. Dipartimento di Ingegneria, University of Palermo, Palermo 1175ABT, Italy
5. Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
6. Department of Thermal and Fluids Engineering, University Carlos III of Madrid, Getafe, Madrid 28013, Spain
7. Bosch Research and Technology Center North America, Sunnyvale, California 94085, United States
8. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States