1. School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Gyeonggi-do, Republic of Korea
2. Research & Development Division, Hyundai Motor Company, 37 Cheoldobangmulgwan-ro, Uiwang 16082, Gyeonggi-do, Republic of Korea
3. Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea