Sungkyunkwan University · Materials Science
Professor Young Dok Kim's research lab specializes in the design and synthesis of advanced nanomaterials for energy and environmental applications. The lab focuses on understanding the fundamental surface chemistry of gold clusters and their catalytic properties, particularly in oxygen activation and chemisorption processes. It also develops functional nanomaterials for practical applications, such as superhydrophobic and transparent films with high durability and environmental stability. The lab bridges molecular-level insights with scalable materials engineering to address challenges in catalysis and surface science.
Figures are computed from collected data and may differ slightly.
Experimental and theoretical evidence is presented for the nondissociative chemisorption of O2 on free Au cluster anions (Aun-, n=number of atoms) with n=2, 4, 6 at room temperature, indicating that the stabilization of the activated di-oxygen species is the key for the unusual catalytic activities of Au-based catalysts. In contrast to Aun- with n=2, 4, 6, O2 adsorbs atomically on Au monomer anions. For the Au monomer neutral, calculations based on density functional theory reveal that oxygen sh
We report a versatile and simple two-step method for fabricating superhydrophobic films with optical transparency. Silica nanoparticles were coated with a hydrophobic PDMS thin layer and subsequently fixed onto adhesive surfaces. The water contact angle on the prepared surface was over 150°, which implies that the surface is highly repellent to water. The transparent nature of the fabricated surface and its high chemical and physical stability were also demonstrated. Our method is simple, cost-e
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