1. William A. Brookshire Department of Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, Texas 77204, USA
2. Green Carbon Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Yuseong, Daejeon 34114, Republic of Korea
3. ExxonMobil Technology and Engineering, 5200 Bayway Drive, Baytown, Texas 77520, USA
4. Texas Center for Superconductivity at the University of Houston, 3369 Cullen Blvd., Houston, TX 77204, USA