Prof. Amanda Morris (Virginia Tech) Chemistry Seminar
The finite supply of fossil fuels and the possible environmental impact of such energy sources has garnered the scientific community’s attention for the development of alternative, overall carbon-neutral fuel sources. The sun provides enough energy every hour and a half to power human civilization for an entire year. However, two of the remaining challenges that limit the utilization of solar energy are the development of cheap and efficient solar harvesting materials and advances in energy storage technology to overcome the intermittent nature of the sun. In the seminar, the research projects to be discussed focus on the development of an artificial photosynthetic array for solar energy storage. Photo synthetic systems consist of light harvesting arrays and redox mediators that can funnel the electrochemical potential stored in molecular excited states to catalytic centers to drive the oxidation of water and the reduction of CO2 to sugars. Many artificial approaches to this chemistry have been reported. In the Morris group, we investigate metal organic frameworks (MOFs) as both light harvesters and high surface area catalysts as photosynthetic mimics. I will discuss our work in the understanding of energy transfer through MOF arrays.Our fundamental work with metal polypyridyl doped frameworks has provided support for a Förster-type energy transfer mechanism between formally triplet excited states. Additionally, we have determined that alignment of the chromophores in 3D space enables long-range energy transfer. The application of MOFs in photon up conversion and photovoltaics will be discussed.
Amanda Morris is the Patricia Caldwell Associate Professor of Inorganic and Energy Chemistry at Virginia Tech. She matriculated from Penn State University (B.S.) and Johns Hopkins University (M.S. & PhD). She conducted her postdoctoral work at Princeton University. Her independent research has explored energy and electron transport through metal organic frameworks. For this work, she has received many awards including the Sloan Research Fellowship, the Dreyfus Teacher-Scholar Award, the Inter-American Photochemical Society Young Investigator Award, the Kavli Frontiers of Science Fellowship, and the Ralph Powe Junior Faculty Award. She currently serves as an American Chemical Society Expert in Sustainable Energy.
Thursday, May 6 at 4:00pmVirtual Event