1. Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh11421, Saudi Arabia
2. National Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh11442, Saudi Arabia
3. CNR-ITAE, Istituto di Tecnologie Avanzate per Energia “Nicola Giordano”, Via S. Lucia sopra Contesse 5, 98126Messina, Italy
4. School of Chemistry and Chemical Engineering, Queen’s University Belfast, BelfastBT9 5AG, U.K.