1. Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, USA
2. Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
3. SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
4. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
5. Toyota Research Institute of North America, 1555 Woodridge Ave, Ann Arbor, MI 48105, USA
6. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
7. Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California, USA
8. Toyota Research Institute, Energy and Materials Division, 4440 El Camino Real, Los Altos, California 94022, USA
9. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
10. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA