-Important Implications for a Sustainable Energy Society

 

 

 

 

Professor Shul Yong-gun                                         Professor Han Byung-chan

 

 

A Yonsei research team, led by Professors Shul Yong-gun and Han Byung-chan from the Department of Chemical and Biomolecular Engineering, has identified a highly functional catalyst-hexagonal perovskite—for the oxygen evolution reaction (OER), a crucial phase in the energy conversion process. The research was published online February 24 in the Journal of the American Chemical Society under the title “A New Family of Perovskite Catalysts for Oxygen-Evolution Reaction in Alkaline Media: BaNiO3 and BaNi0.83O2.5”

 

According to Professors Shul and Han, the findings are significant in terms of establishing a sustainable energy society. Hexagonal perovskite, they said, has strong potential to become a “cost-effective and highly active catalyst for energy conversion and storage devices, such as metal-air batteries and electrochemical water-splitting systems.”

 

 

 

Enhanced OER activity due to phase transformation

 

 

Cubic and hexagonal perovskite structures