Computationally Guided Design of MULTIPLE ... - wpi.edu...Mechanical Engineering, Worcester...

Computationally Guided Design of MULTIPLE Impurities Tolerant Electrode Mechanical Engineering, Worcester Polytechnic Institute Yu (Michael) Zhong, Ph.D. [email protected], (508)831-5958 Bio: Dr. Yu Zhong is currently an Associate Professor in Mechanical Engineering at Worcester Polytechnic Institute (WPI). He received his Ph.D. from the Penn State University (2005). After a short-term working as Research Associate, he joined Saint-Gobain High Performance Materials Research Center in Northborough, MA. He had built up his career there as internal technical consultant focusing on the application of thermodynamics and kinetics to various R&D projects. In 2013, He moved to Florida International University (FIU) as Assistant Professor and joined WPI in 2017. Dr. Zhong received the TMS FMD Young Leaders Professional Development Award in 2016 and ONR summer faculty fellowship in 2015, 2016, and 2017. He has more than 55 peer-reviewed journal papers published/accepted, 2 book chapters, and 2 patents. His research is currently supported by Department of Energy (DOE) National Energy Technology Lab (NETL), Nuclear Energy University Program (NEUP), and Solar Energy Technology Office (SETO), National Science Foundation (NSF), American Chemical Society (ACS), and Advance Casting Research Center (ACRC). Abstract A successful solid oxide fuel cell needs to have high initial power density with extremely low long-term degradation to be in service for 20-30 years. These two requirements are actually interlinked. It has been identified that the change of composition, phase stability, and microstructure morphology on the surface/interface of the cathode side are critical for both high initial power density, and long- term degradation. When the cathode is exposed to simultaneously present, MULTIPLE impurities in air including CO2, SO2, H2O, and Cr etc., it can result in changes in the morphology, composition, microstructure, and crystal structure. We propose to design, test, and validate cathode materials for SOFCs that maintain high performance and low degradation rates under simultaneously present, MULTIPLE impurities using a combined Integrated Computational Materials Engineering (ICME) and lab-scale testing approach. It is expected that the cathode compositions resulting from this work will achieve the highest power densities of 1.5W/cm 2 at 800 o C and more significantly, achieve a degradation rate of 0.4%/1000hrs under realistic operating conditions with simultaneously present, MULTIPLE impurities at the cell level.

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Transcript of Computationally Guided Design of MULTIPLE ... - wpi.edu...Mechanical Engineering, Worcester...

Computationally Guided Design of MULTIPLE Impurities Tolerant

Electrode

Mechanical Engineering, Worcester Polytechnic Institute Yu (Michael) Zhong, Ph.D.

[email protected], (508)831-5958

Bio: Dr. Yu Zhong is currently an Associate Professor in Mechanical Engineering at Worcester Polytechnic Institute (WPI). He received his Ph.D. from the Penn State University (2005). After a short-term working as Research Associate, he

joined Saint-Gobain High Performance Materials Research Center in Northborough, MA. He had built up his career there as internal technical consultant focusing on the application of thermodynamics and kinetics to various R&D projects. In 2013, He moved to Florida International University (FIU) as Assistant Professor and joined WPI in 2017. Dr. Zhong received the TMS FMD Young Leaders Professional Development Award in 2016 and ONR summer faculty fellowship in 2015, 2016, and 2017. He has more than 55 peer-reviewed journal papers published/accepted, 2 book chapters, and 2 patents. His research is currently supported by Department of Energy (DOE) National Energy Technology Lab (NETL), Nuclear Energy University Program (NEUP), and Solar Energy Technology Office (SETO), National Science Foundation (NSF), American Chemical Society (ACS), and Advance Casting Research Center (ACRC).

Abstract A successful solid oxide fuel cell needs to have high initial power density with extremely low

long-term degradation to be in service for 20-30 years. These two requirements are actually interlinked. It has been identified that the change of composition, phase stability, and microstructure morphology on the surface/interface of the cathode side are critical for both high initial power density, and long-term degradation. When the cathode is exposed to simultaneously present, MULTIPLE impurities in air including CO2, SO2, H2O, and Cr etc., it can result in changes in the morphology, composition, microstructure, and crystal structure.

We propose to design, test, and validate cathode materials for SOFCs that maintain high performance and low degradation rates under simultaneously present, MULTIPLE impurities using a combined Integrated Computational Materials Engineering (ICME) and lab-scale testing approach. It is expected that the cathode compositions resulting from this work will achieve the highest power densities of 1.5W/cm2 at 800oC and more significantly, achieve a degradation rate of 0.4%/1000hrs under realistic operating conditions with simultaneously present, MULTIPLE impurities at the cell level.