1. Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.
2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
3. School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
4. SinBeRISE (Singapore-Berkeley Research Initiative for Sustainable Energy) CREATE, 1 Create Way, Singapore 138602, Singapore.
5. National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, P. R. China.
6. Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
7. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA.
8. Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA.
9. Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
10. National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
11. Leiden Institute of Chemistry, Leiden University, 2300 RA Leiden, Netherlands.