1. Department of Chemical Engineering, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa16417, Ethiopia
2. School of Chemical and Bio-Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa1176, Ethiopia
3. Center of Excellence for Sustainable Energy Research, Addis Ababa Science and Technology University, Addis Ababa16417, Ethiopia