1. Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
2. Combustion Research Facility, Sandia National Laboratories, Livermore, California 94550, United States
3. Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States