1. Sustainable Energy & Power Systems Research Centre, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
2. Materials Science and Engineering Ph.D. Program, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
3. Fuel Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
4. Department of Electrical Engineering, College of Engineering in Wadi Alddawasir, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
5. Mechanical Engineering and Design, School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham B4 7ET, UK