Korea University · Energy
Professor Byoung Koun Min's research lab focuses on the design and mechanistic understanding of heterogeneous nanocatalysts for sustainable energy and chemical transformation. The lab specializes in gold-based and copper-based nanomaterials for low-temperature catalytic oxidation and electrochemical CO₂ reduction, with a strong emphasis on structure–activity relationships and dynamic morphological evolution during reactions. Key research directions include the development of stable, highly active nanocatalysts for green chemistry applications such as CO oxidation, C₂+ product formation from CO₂, and selective oxidation of biomass-derived intermediates like HMF to FDCA.
Figures are computed from collected data and may differ slightly.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeterogeneous Gold-Based Catalysis for Green Chemistry: Low-Temperature CO Oxidation and Propene OxidationByoung Koun Min and Cynthia M. FriendView Author Information Department of Chemistry and Chemical Biology and Division of Engineering and Applied Sciences, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138 Cite this: Chem. Rev. 2007, 107, 6, 2709–2724Publication Date (Web):June 13, 2007Publication History Received17 August 2006Pu
In this study, we demonstrate that the initial morphology of nanoparticles can be transformed into small fragmented nanoparticles, which were densely contacted to each other, during electrochemical CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR). Cu-based nanoparticles were directly grown on a carbon support by using cysteamine immobilization agent, and the synthesized nanoparticle catalyst showed increasing activity during initial CO<sub>2</sub>RR, doubling Faradaic efficiency of C<sub>2</
The rate of CO oxidation to CO2 depends strongly on the reaction temperature and characteristics of the oxygen overlayer on Au(111). The factors that contribute to the temperature dependence in the oxidation rate are (1) the residence time of CO on the surface, (2) the island size containing Au−O complexes, and (3) the local properties, including the degree of order of the oxygen layer. Three different types of oxygendefined as chemisorbed oxygen, a surface oxide, and a bulk oxideare identified
New challenges for electrokinetic studies of CO<sub>2</sub> reduction are addressed with the suggested reaction mechanisms of CO and HCOO<sup>−</sup> production.
Electrochemical alcohol oxidation is considered a promising alternative to the oxygen evolution reaction due to the production of high-value products and early onset potential. Herein, we analyze the different reactivities of NiOOH and Cu(OH)2 toward the electrochemical oxidation of alcohol and aldehyde on the furan ring and utilize their characteristics synergistically to enhance the performance of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) conversion. We discovered that
Following the discovery that small gold clusters highly dispersed on metal oxide supports are active catalysts at low temperature for a variety of reactions, a number of studies have been carried out to determine the structure of the clusters and the mechanism leading to their activity. A major deterrent to the use of these catalysts, however, is that under reaction temperatures and pressures, the clusters tend to sinter, or agglomerate, leading to a dramatic decrease in activity. In an attempt
Adsorption of oxygen atoms, achieved via electron-induced dissociation of nitrogen dioxide, induces restructuring of the ``herringbone'' to a striped, soliton-wall structure accompanied by release of gold from the ``elbows'' in the herringbone structure. The number density of ``elbows'' (dislocations corresponding to a change in direction of the reconstruction) decreases as a function of increasing atomic oxygen coverage while the long range order observed in low energy electron diffraction (LEE
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