Hyunhun Kim
Pohang University of Science and Technology · Energy
About the Lab
Professor Hyunhun Kim's research lab specializes in the design and development of advanced electrocatalysts for sustainable energy conversion and storage. The lab focuses on single-atom and multi-element alloy catalysts, leveraging computational modeling and advanced characterization techniques to optimize electronic structure and catalytic activity. Key research directions include oxygen reduction and evolution reactions (ORR/OER), with an emphasis on enhancing conductivity, stability, and efficiency through atomic-level engineering of catalysts. The lab integrates materials synthesis, electronic structure analysis, and in-situ characterization to advance next-generation energy technologies.
Research Overview
Research Output Trend
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Selected Papers
3The integration of bifunctionally active sites of multielement random alloy catalysts with other metal oxide electrocatalysts is a promising strategy for efficient electrochemical reactions. In this study, a novel combination of virtual crystal approximation and hydrothermal synthesis was used to investigate the composition-dependent structure and electrical property in a Ag1−xNix catalyst. The combination showed that a hexagonal closed-packed structure of Ag1−xNix with a compositional ratio of
In this work, a novel single-atom alloy electrocatalyst (SAAE) was developed for enhanced electrocatalysis in next-generation energy technologies. The catalyst, composed of single-atom Rh and bulk Ni on FeV3O8 support, overcomes challenges related to stability and efficiency in electrochemical reactions. The work function difference between Rh and Ni, as confirmed by computational and synchrotron-based analysis, facilitates superior electric polarization and ohmic contact with FeV3O8. The FeV3O8
Research Areas
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