Pohang University of Science and Technology · エネルギー
Professor Min Ho Seo's research lab specializes in the design and development of advanced nanomaterials for sustainable energy conversion and storage applications. The lab focuses on electrocatalysts for water splitting—particularly oxygen evolution reaction (OER) in seawater electrolysis and anion exchange membrane water electrolysis—using earth-abundant transition metal oxides and spinels. Key research directions include understanding reaction mechanisms through combined experimental and ab initio computational studies, with a strong emphasis on non-precious metal catalysts for replacing noble metals like Pt and Au in electrocatalytic glycerol oxidation and hydrogen production. The lab also explores novel nanostructured anode materials, such as Ge nanowires and CuCo₂O₄, for high-performance lithium-ion and post-lithium-ion batteries.
Figures are computed from collected data and may differ slightly.
We present a single crystalline Ge nanowire anode material sheathed with carbon prepared by a solid–liquid solution method. The composite electrode composed of Ge nanowires shows impressive electrochemical properties, exhibiting a very high reversible charge capacity (after lithium removal) of 963 mA h g−1 with a coulombic efficiency of 91%.
Seawater electrolysis is a promising technology for the production of hydrogen energy and seawater desalination. To produce hydrogen energy through seawater electrolysis, highly active electrocatalysts for the oxygen evolution reaction are required.
Perovskite oxides (ABO3) have recently attracted attention since tailoring their chemical compositions has resulted in remarkable activity toward oxygen evolution reaction (OER) which governs rechargeability of recently spotlighted metal–air batteries and regenerative fuel cells. For further development of highly OER active perovskite oxides, however, the exact mechanism the OER must be well understood. Herein, we introduce investigation of the OER mechanism of perovskite oxides by ab initio ana
Cu<sub>0.5</sub>Co<sub>2.5</sub>O<sub>4</sub> nanoparticles are obtained by changes in the pH and applied as the anode in anion exchange membrane water electrolysis.
Au and Pt are well-known catalysts for electrocatalytic oxidation of biomass-derived glycerol. Although some nonprecious-metal-based materials to replace the costly Au and Pt are used for this reaction, the fundamental question of how the nonprecious catalysts affect the reaction chemistry and mechanism compared to Au and Pt catalysts is still unanswered. In this work, both experimental and computational methods are used to understand how and why the reaction performance and chemistry for the el
Uniquely nanostructured CuCo2O4 is presented as an electrocatalyst for oxygen evolution reactions (OER). CuCo2O4 particles in a chestnut-burr-like shape (CCO*, where ∗ = chestnut burr) were hydrothermally synthesized around fibers of Ni foam substrates as current collectors. Chestnut burrs 4 μm on average had thorns consisting of less than five threads. Each thread was made of a consecutive array of nanobeads less than 10 nm. Nanovoids or nanopores were found between nanobeads. The chestnut-burr
Our new nomogram is valuable in predicting the 28-day mortality of patients with severe sepsis and/or septic shock in the emergency department. Moreover, our readily available nomogram is superior to conventional scoring systems in predicting mortality.
In this study, we report self-assembled nitrogen-doped fullerenes (N-fullerene) as non-precious catalysts, which are active for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and thus applicable for energy conversion and storage devices such as fuel cells and metal-air battery systems. We screen the best N-fullerene catalyst at the nitrogen doping level of 10 at%, not at the previously known doping level of 5 or 20 at% for graphene. We identify that the compressive surf
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