1. Research and Innovation Center on CO2 and H2 (RICH), Khalifa University of Science and Technology, P.O. 127788, Abu Dhabi, United Arab Emirates
2. Chemical Engineering Department, Khalifa University of Science and Technology, P.O. 127788, Abu Dhabi, United Arab Emirates
3. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA