1. Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
2. Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Lyngby, Denmark
3. Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
4. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States