1. Sandia National Laboratories, Hydrogen and Combustion Technology Department, Livermore, California 94551, USA
2. Fusion Safety Program, Idaho National Laboratory, Idaho Falls, Idaho 83415, USA
3. Department of Chemistry, Graduate School of Science, Shizuoka University, Shizuoka 422-8529, Japan
4. Sandia National Laboratories, Energy Nanomaterials Department, Livermore, California 94551, USA
5. Institute of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan