1. Environmental Science & Engineering, Linde Laboratory, California Institute of Technology, Pasadena, California 91125, United States
2. Solid State NMR Facility, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
3. Nanopac Co., Ltd., 673 Hwasan-Ri, Cheoin-Gu, Yongin-Si, Gyeonggi-Do, Republic of Korea