AbstractSubstantial losses can arise in the solid oxide fuel cell (SOFC) due to degradation during operation. This presentation will focus on the development of in situ x-ray imaging and spectroscopy techniques that will allow the direct observation of the SOFC under operational conditions and provide a scientific and engineering understanding of degradation. Progress on in situ x-ray imaging of 3D microstructural and chemical changes in SOFC materials using synchrotron-based transmission x-ray microscopy will be presented. Challenges and opportunities of in situ hard x-ray microscopy using nanoprobe and full field x-ray microscopy techniques will be discussed. The long-term goal of this work will be to develop hard x-ray in situ techniques to further the understanding and enhance SOFC long term performance and reliability to enable SOFCs as a viable technology for efficient and sustainable energy conversion. This work is supported by the National Science Foundation (Award CBET-1134052) and 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).About the SpeakerWilson 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 135 conference articles/abstracts. Among his honors, he was elected fellow of ASME in 2013, 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.

In situ synchrotron-based transmission X-ray microscopy of solid oxide fuel cells

247th National Meeting (2014)

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