KAIST Develops High-Performance Non-Platinum Fuel Cell Catalyst
KAIST (President Kwang Hyung Lee) announced on the 7th that Professor Jinwoo Lee's research team from the Department of Bio and Chemical Engineering, in collaboration with Professor Segun Jang's research team from Kookmin University and Professor Seoin Baek's research team from Sogang University, has developed a high power density proton exchange membrane fuel cell based on a non-platinum catalyst.
The M-N-C catalysts, known for their relatively better performance compared to other non-platinum catalysts and regarded as the most promising candidate materials to replace platinum and reduce the cost of existing fuel cells, have faced many limitations in achieving high power density in PEMFC fuel cells.
Professor Jinwoo Lee's research team realized high performance of non-platinum Fe-N-C catalysts that can replace conventional platinum catalysts, achieving excellent cost competitiveness and high power density fuel cell performance.
The optimized Fe-N-C catalyst developed by the research team demonstrated a 44% improvement in power density compared to previously developed Fe-N-C catalysts in PEMFC fuel cells, and showed in single PEMFC cells that it can replace the currently used platinum catalysts.
The non-platinum Fe-N-C catalyst developed by the research team is expected to contribute to reducing the stack price of fuel cells and subsequent commercialization by replacing existing platinum catalysts with its high electrochemical properties.
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Professor Jinwoo Lee stated, "It is significant that we clarified the relationship between defects and performance of the non-platinum Fe-N-C catalyst and developed a high power density proton exchange membrane fuel cell without using any platinum through defect control. The developed catalyst and synthesis method are expected to be applied to replace precious metal platinum in various types of fuel cells in the future."
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