L.M. Das, PhD, is Former Professor and Emeritus Professor at the Indian Institute of Technology – Delhi, India. With teaching and research experience spanning more than four decades, he has taught and supervised master’s projects and doctoral theses, developed laboratories, and served as consultant and principal investigator on hydrogen and alternative fuels projects sponsored by India’s Ministry of New and Renewable Energy, the Department of Science and Technology, UNIDO, the European Union, Shell Research Ltd., and General Motors Research Labs (USA).