1. Renewable Energy Resources Lab & National Fuel Cell Research Center, Department of Mechanical and Aerospace Engineering, The University of California, Irvine, CA, 92697, USA
2. Giner Inc, Newton, MA, 02466, USA
3. California Air Resources Board, Sustainable Transportation and Communities Division, California Environmental Protection Agency, 1001 I Street Sacramento, CA 95814, USA
4. Sandia National Laboratories, Livermore, CA 94550, USA