Korea Advanced Institute of Science and Technology · 工学
Professor Sejin Kwon's research lab specializes in advanced materials and systems for sustainable energy conversion and storage, with a primary focus on hydrogen generation and fuel cell technologies. The lab develops compact, efficient, and safe hydrogen production systems using chemical hydrides like sodium borohydride and methanol, employing tailored heterogeneous catalysts to enable controlled and continuous hydrogen release. Key research directions include catalytic methanolysis and steam reforming of methanol, as well as the integration of hydrogen generation units with proton exchange membrane fuel cells (PEMFCs) for portable and distributed energy applications. The lab also explores innovative thermal management strategies, such as using hydrogen peroxide decomposition for in-situ heat supply in micro-reformers.
Figures are computed from collected data and may differ slightly.
This paper presents the design, fabrication and evaluation of a micro methanol reformer complete with a heat source. The micro system consists of the steam reforming reactor of methanol, the catalytic decomposition reactor of hydrogen peroxide, and a heat exchanger between the two reactors. In the present study, catalytic decomposition of hydrogen peroxide is used as a process to supply heat to the reforming reactor. The decomposition process of hydrogen peroxide produces water vapor and oxygen
Constant hydrogen generation via a hydrogen generator is evaluated from the methanolysis of sodium borohydride (NaBH4) using Co/Al2O3 and MnOx/Al2O3 catalysts. Chemical borohydrides coupled with catalysts can be used for compact storage and to create efficient generation systems. Thus, we first report the catalytic activity of MnOx/Al2O3, which is synthesized using the simple wet-impregnation method, for the methanolysis reaction. The results indicate that both catalysts can effectively accelera
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