On November 19, 2018 Dr. Karren Leslie More of Oak Ridge National
Laboratory (ORNL) will speak to the Technical Society of Knoxville on
fuel cell research.
Transportation is a major source of carbon dioxide added to the
atmosphere in the United States. Gasoline and diesel fuel are very
compact sources of energy and the technology for using electricity and
batteries for long-range transportation is not available. Gasoline and
diesel fuel are burned in an internal combustion engine which is
relatively low in efficiency and a major waste product is carbon
dioxide. A hydrogen fuel cell is an electrochemical cell in which
hydrogen gas and oxygen from the air are adsorbed on the electrodes.
When combined with an electric motor a hydrogen fuel cell is
inherently much more efficient than an internal combustion engine and
the waste product is water- and not carbon dioxide. Hydrogen fuel
cells have been used in space applications but they are very
expensive. Platinum makes a wonderful electrode but it is
prohibitively expensive and research is being performed to find
substitutes. The electrolytes and construction materials also present
The Technical Society will have an opportunity to learn about this
very important future power source from a person who is directly
involved with the research. Karren More is the Group Leader for the Electron and Atom Probe Microscopy Group in the Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory (ORNL). She received her Ph.D. from North Carolina State University and has been a research staff member at ORNL since 1988. Her research interests are focused on using advanced electron microscopy towards understanding the structure and chemistry of nanomaterials.
future Technical Society programs
December 10, 2018: Prof Mark Dean -Computers that operate more like human brains
January 14, 2019 TBA
February 11, 2019 James George Coder- the future of aerospace and ultra-efficient aircraft design.