1. Chemical and Petroleum Engineering Department, University of Pittsburgh , Pittsburgh, PA , United States
2. Physics and Astronomy Department, University of Pittsburgh , Pittsburgh, PA , United States
3. Center for Functional Nanomaterials, Brookhaven National Lab , Upton, NY , United States
4. Materials Science and Engineering Program & Department of Mechanical Engineering, State University of New York at Binghamton , Binghamton, NY , United States
5. Chemical Engineering Department, Pohang University of Science and Technology (POSTECH) , Pohang, Gyeongbuk , Republic of Korea
6. Center for Integrated Nanotechnologies, Sandia National Laboratories , Albuquerque, NM , United States
7. Chemistry Department, University of California , Berkeley, CA , United States
8. National Center for Electron Microscopy, The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley, CA , United States
9. Mechanical Engineering and Materials Science Department, University of Pittsburgh , Pittsburgh, PA , United States
10. National Energy Technology Laboratory , Pittsburgh, PA , United States