The weekly seminar series organized by CNT and the Molecular Engineering and Sciences Institute provides a forum for bringing national and international leaders in nanoscale science and technology to campus, and for graduate students enrolled in our Dual Ph.D. program in Nanotechnology to present their research.
All seminars are held on Tuesdays from 2:30 to 3:20 PM in Johnson Hall Room 102 (North end of building and across from MolE).
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Advanced Materials for Energy: Challenges for Design and Characterization
Prof. Keith Stevenson, University of Texas, Austin - Dept. of Chemistry
Prof. Bo Zhang, Dept. of Chemistry
The development of advanced materials and technologies to efficiently convert and store energy directly into electricity or chemical fuels is of urgent importance due to increasing energy demands of an ever growing world population and decreasing energy reserves. However tremendous scientific challenges remain before successful implementation of any number of competing energy technologies such as solar cells, fuel cells, and batteries. The materials, interfaces and device architectures currently being explored are very challenging to characterize by ensemble-averaging, bulk experimental methods since they do not exhibit long-range order or homogeneity, contain unique nano-morphological features and possess non-uniform chemical compositions and defect chemistry. The lack of fundamental understanding for charge generation, separation and transfer at these electrochemical interfaces provides tremendous impetus for the continued development and application of advanced analytical tools. This presentation will summarize a few materials design strategies for optimizing the performance of nanostructured metal oxide materials for use in electrochemical energy storage and conversion applications and highlight the development of high resolution analytical tools for studying charge transfer processes at electrode interfaces. Information obtained from these studies on model systems provides fundamental understanding of electron and ion transfer processes and degradation mechanisms for materials utilized for electrochemical energy conversion and storage.
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