1. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
2. Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States
3. Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
4. Beijing Key Laboratory of Failure, Corrosion and Protection of Oil/Gas Facility Materials, College of New Energy and Materials, China University of Petroleum, Beijing, Beijing 102249, China
5. National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Kavli Energy NanoScience Institute, University of California, Berkeley, and Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States