Energy Center

Analysis of Energy Materials Seminar by Prof. Wilson, U, of CT

September 12 @ 3:00 PM - 4:30 PM - Mechanical Engerineering Building -Room ME 2054

Mechanical Engineering Seminar

Purdue wlecomes Wilson K. S. Chiu, Ph.D. (wchiu@engr.uconn.edu) a Professor in the Department of Mechanical Engineering from the University of Connecticut. He iwll present a lecture titled: Three-Dimensional Microstructural Imaging and Analysis of Energy Materials on Sept. 12 in the Mechanical Enerigneering Building, room ME 2054 at 3:00 pm.

Abstract:   Materials used in energy storage and conversion (e.g. fuel cells, batteries, electrolyzers, CO2 separation membranes) all consist of heterogeneous functional materials that exhibit functional behavior in a manner that controls their collective performance as an energy system. There is a critical need to understand the role of a material’s structure, morphology, and composition on system performance1. This seminar presents a non-destructive approach to image and characterize energy materials using synchrotron-based transmission x-ray microscopy2,3. Three-dimensional structures within the sample volume are imaged and tomographically reconstructed at up to 17 nm spatial resolution. Several theoretical approaches including numerical methods (lattice Boltzmann, finite element) and analytical methods (electrochemical fin theory) are used to analyze mass transfer, heat transfer, ionic/electronic charge transfer, and chemical / electrochemical reaction rates. To demonstrate this approach, solid oxide fuel cell and in Li-ion battery electrodes are examined to provide fundamental insight into the origins of microstructured-induced transport losses during operation. This work is supported by an Energy Frontier Research Center on Science Based Nano-Structure Design and Synthesis of Heterogeneous Functional Materials for Energy Systems (HeteroFoaM Center) funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences (Award DE-SC000106).

1. A.P. Cocco et al., Phys. Chem. Chem. Phys., DOI: 10.1039/C3CP52356J (2013).

2. W.M. Harris et al., Nanoscale 4: 1557 (2012); G.J. Nelson et al., Appl. Phys. Lett. 98: 173109 (2011).

3. H. Yan et al., Sci. Rep. 3: 1307 (2013).

Bio:  Wilson K. S. Chiu joined the University of Connecticut in 1999 where he is now Professor in the Department of Mechanical Engineering. He earned his M.S. and Ph.D. degrees in Mechanical Engineering from Rutgers University in 1997 and 1999, respectively. His research is supported by the U.S. Department of Energy, National Science Foundation, Office of Naval Research, Army Research Office, and industry. He published 84 journal articles and 133 conference articles/abstracts. Among his honors, he was elected into the Connecticut Academy of Science and Engineering in 2013, received the Rutgers University School of Engineering Medal of Excellence Award in 2010, the United Technologies Corporation Professorship in Engineering Innovation in 2008, the ASME Bergles-Rohsenow Young Investigator Award in Heat Transfer in 2006, the U.S. Army Research Office Young Investigator Award in 2005, and the National Science Foundation CAREER Award and the Office of Naval Research Young Investigator Award in 2001. He serves as secretary and treasurer for the ASME Advanced Energy Systems Division, chairman of the ASME Advanced Energy Systems Division Technical Committee on Electrochemical Energy Conversion and Storage, and associate editor for the ASME Journal of Heat Transfer and the International Journal of Thermal Sciences. He has served as organizer, session chair/co-chair, or on the program committee for over 50 conferences and workshops, and has given over 70 keynote and invited lectures in the United States and abroad.

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Contact Details

  • Xianfan Xu
  • (765) 494-5639
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