Hydrogen Storage in Future Zero-Emission Vehicles
Thomas Klassen, Helmut Schmidt University, Germany
Friday, November 2, 2007, 3:30pm
MP3 (26 MB)
This seminar is part of the Jones Seminars on Science, Technology, and Society series
In view of increasing pollution and exploitation of fossil fuel reserves, renewable energy concepts are essential for the future of our society. Hydrogen is the ideal clean energy carrier, e.g. for the zero-emission vehicle. The storage of hydrogen for mobile applications is still one of the major problems for implementation. This presentation will shortly review the different methods for storing hydrogen. In particular, advantages and problems related to storage in solid metal hydrides will be addressed and recent progress will be presented. Only light metal hydrides can meet the application criteria with respect to weight-related storage capacity, and they had not been considered competitive because of their rather sluggish sorption kinetics. A breakthrough in reaction kinetics was achieved by preparing nanocrystalline hydrides using high-energy ball milling. Furthermore, addition of suitable catalysts yields fast absorption and desorption kinetics.
About the Speaker
Thomas Klassen studied Physics in Dortmund, Germany, and received his Ph.D. in Engineering from the Technical University of Hamburg-Harburg, Germany. He spent two years as a post-doc at the Materials Science Lab, University of Illinois at Urbana-Champaign, before becoming a group leader at GKSS, a National Research Center in Germany. In 2005, he finished his habilitation thesis on Nanostructured Materials, and joined the faculty at the Helmut Schmidt University in Hamburg.