1. Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19716, Department of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, Electrochemical Energy Systems Division, Central Electrochemical Research Institute, Karaikudi−630 006, India, Department of Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea, and School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills P. O., Kottayam−686 560, India