1. Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
2. Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261 Saudi Arabia
3. Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), KFUPM Box 5040, Dhahran 31261, Saudi Arabia