[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[2] CALTECH, Joint Ctr Artificial Photosynth, Pasadena, CA 91125 USA
[3] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynth, Berkeley, CA 94720 USA
[5] Univ Tokyo, Dept Chem Syst Engn, Tokyo 1138656, Japan
[6] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
[7] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA