1. Department of Chemistry, Stanford University, Stanford, California 94305, United States
2. SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
3. Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
4. Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
7. Department of Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4L8, Canada
8. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
9. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States