이광희
@korea.ac.kr
Korea University
Scopus Publications
- Atomic-scale vacancy engineering unlocks basal-plane catalytic activity in metallic WSe2 for reversible oxygen electrocatalysis
Joo-Won Lee, Sung-Chul Kim, Sichi Li, Cheol-Hui Ryu, Sungju Jun, et al.
Materials Science and Engineering R Reports, 2026 - Toxicity of different light-emitting diode phosphor-dispersed encapsulants exposed by pharyngeal aspiration in mice
Gwang-Hee Lee, Wonkyun Jung, Kyung-Soo Park, Cheolho Yoon, Mi-Jin Yang, et al.
Journal of Hazardous Materials Advances, 2026 - Recycling mining tailings into defect-engineered iron oxide for lithium-ion and lithium-oxygen batteries
Hyun-Woo Shim, Jae-Chan Kim, Rina Kim, Hong-In Kim, Kyung-Soo Park, et al.
Inorganic Chemistry Communications, 2025 - Aligned Ion Conduction Pathway of Polyrotaxane-Based Electrolyte with Dispersed Hydrophobic Chains for Solid-State Lithium–Oxygen Batteries
Bitgaram Kim, Myeong-Chang Sung, Gwang-Hee Lee, Byoungjoon Hwang, Sojung Seo, et al.
Nano Micro Letters, 2025
A critical challenge hindering the practical application of lithium–oxygen batteries (LOBs) is the inevitable problems associated with liquid electrolytes, such as evaporation and safety problems. Our study addresses these problems by proposing a modified polyrotaxane (mPR)-based solid polymer electrolyte (SPE) design that simultaneously mitigates solvent-related problems and improves conductivity. mPR-SPE exhibits high ion conductivity (2.8 × 10−3 S cm−1 at 25 °C) through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain dispersion. Integrating this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 cycles. In situ Raman spectroscopy reveals the presence of an LiO2 intermediate alongside Li2O2 during oxygen reactions. Ex situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture, as demonstrated by the air permeability tests. The present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs. - Synthesis of ilmenite-derived TiO2 photocatalysts with different morphologies: Enhanced photocatalytic activity using ammonium hexafluorotitanate
Duk-Hee Lee, Gwang-Hee Lee, Mushtaq Ahmad Dar, Kyung-Soo Park, Dong-Wan Kim
Ceramics International, 2025 - Facile Solid-State Synthesis of Prelithiated LiTiO2 With Nitrogen-Doped Carbon for Lithium-Ion Battery Anodes
Duk-Hee Lee, Cheol-Hui Ryu, Kyung-Soo Park, Gwang-Hee Lee, Dong-Wan Kim
International Journal of Energy Research, 2025
Although Ti‐based oxides are attractive anode materials for Li‐ion batteries (LIBs) owing to their inherent stability and enhanced safety, their electrochemical performance is severely limited by low conductivity and slow Li‐ion diffusion. Conventional LiTiO 2 synthesis methods are not cost‐effective because they rely on high‐purity precursors and energy‐intensive procedures. To address these limitations, in this study, prelithiated LiTiO 2 with nitrogen‐doped carbon (NC–LiTiO 2 ) was synthesized via a solid‐state reaction using TiO 2 hollow spheres (HSs) derived from ammonium hexafluorotitanate (AHFT[(NH 4 ) 2 TiF 6 ]). The NC–LiTiO 2 exhibited a highly crystalline structure with a homogeneous elemental distribution, and the nitrogen‐doped carbon enhanced its electronic conductivity and facilitated Li‐ion diffusion, thereby improving the overall performance of the LiTiO 2 anodes. The electrochemical testing results indicated a high discharge capacity (170 mA h g –1 ), excellent rate performance, and good cycling stability over 1000 cycles at 2 C. The improved performance was attributed to the nitrogen‐doped carbon, robust structure, and progressive activation of Li‐ion pathways. Morphological and impedance analyses after cycling revealed minimal volume expansion and a significant reduction in the interfacial resistance. The strategy proposed herein offers a facile, cost‐effective route for fabricating prelithiated oxide anodes and is effective for enhancing their electrochemical performance through improved structural and interfacial design. - Enhanced visible-light photocatalytic activity of N-doped C/Na2Ti6O13/TiO2 hollow spheres for efficient dye degradation
Duk-Hee Lee, Hyun-Woo Shim, Gwang-Hee Lee, Kyung-Soo Park
Heliyon, 2024 - Subchronic pulmonary toxicity of ambient particles containing cement production–related elements
Eun-Jung Park, Mi-Jin Yang, Min-Sung Kang, Young-Min Jo, Cheolho Yoon, et al.
Toxicology Reports, 2023 - Subway station dust-induced pulmonary inflammation may be due to the dysfunction of alveolar macrophages: Possible contribution of bound elements
Eun-Jung Park, Mi-Jin Yang, Min-Sung Kang, Young-Min Jo, Cheolho Yoon, et al.
Toxicology, 2023 - Efficient Li2O2 oxidation kinetics of perovskite-type lanthanum chromium-based oxide by promoter interface formation for lithium-oxygen batteries
Myeong-Chang Sung, Gwang-Hee Lee, Dong-Wan Kim
Energy Storage Materials, 2023 - Synergistic coupling of a self-defense redox mediator and anti-superoxide disproportionator in lithium-oxygen batteries for high stability
Gwang-Hee Lee, Myeong-Chang Sung, Dong-Wan Kim
Chemical Engineering Journal, 2023 - Uptake and toxicity of cerium dioxide nanoparticles with different aspect ratio
Min-Sung Kang, Gwang-Hee Lee, Ik Hwan Kwon, Mi-Jin Yang, Min Beom Heo, et al.
Toxicology Letters, 2023 - Rational design of porous Ru-doped CuO nanoarray on carbon cloth: Toward reversible catalyst layer for efficient Li-O2 batteries
Heewon Yoo, Gwang‐Hee Lee, Myeong‐Chang Sung, Dong‐Wan Kim
International Journal of Energy Research, 2022 - Porous carbon cubes decorated with cobalt nanoparticles for oxygen evolution catalysis in Zn-air batteries
Gwang‐Hee Lee, Heewon Yoo, Dong‐Wan Kim
International Journal of Energy Research, 2022 - Comparison of toxicity and cellular responses following pulmonary exposure to different types of nanofibers
Min-Sung Kang, Gwang-Hee Lee, Mi-Jin Yang, Myeong-Chang Sung, Hyoung-Yun Han, et al.
Nanotoxicology, 2022 - Kinetic insight into perovskite La0.8Sr0.2VO3 nanofibers as an efficient electrocatalytic cathode for high-rate Li-O2 batteries
Myeong‐Chang Sung, Gwang‐Hee Lee, Dong‐Wan Kim
Infomat, 2021 - Mechanically Interlocked Polymer Electrolyte with Built-In Fast Molecular Shuttles for All-Solid-State Lithium Batteries
Jiae Seo, Gwang‐Hee Lee, Joon Hur, Myeong‐Chang Sung, Ji‐Hun Seo, et al.
Advanced Energy Materials, 2021 - TCNQ-derived N/S dual-doped carbon cube electrocatalysts with built-in CoS2 nanoparticles for high-rate lithium-oxygen batteries
Yoon Seon Kim, Gwang-Hee Lee, Bobae Ju, Dong-Wan Kim
Chemical Engineering Journal, 2021 - Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries
Gwang-Hee Lee, Yoon Seon Kim, Myeong-Chang Sung, Dong-Wan Kim
Applied Surface Science, 2021 - Toxicity of orally administered food-grade titanium dioxide nanoparticles
Hyoung‐Yun Han, Mi‐Jin Yang, Cheolho Yoon, Gwang‐Hee Lee, Dong‐Wan Kim, et al.
Journal of Applied Toxicology, 2021 - Effect of PM10 on pulmonary immune response and fetus development
Eun-Jung Park, Cheolho Yoon, Ji-Seok Han, Gwang-Hee Lee, Dong-Wan Kim, et al.
Toxicology Letters, 2021 - FeSe hollow spheroids as electrocatalysts for high-rate Li–O2 battery cathodes
Heewon Yoo, Gwang-Hee Lee, Dong-Wan Kim
Journal of Alloys and Compounds, 2021 - Orthorhombically distorted perovskite SeZnO3 nanosheets as an electrocatalyst for lithium-oxygen batteries
Yoon Seon Kim, Gwang-Hee Lee, Myeong-Chang Sung, Dong-Wan Kim
Chemical Engineering Journal, 2021 - Multiple pathways of alveolar macrophage death contribute to pulmonary inflammation induced by silica nanoparticles
Eun-Jung Park, Min-Sung Kang, Seung-Woo Jin, Tae Geol Lee, Gwang-Hee Lee, et al.
Nanotoxicology, 2021 - Repeated intratracheal instillation of zinc oxide nanoparticles induced pulmonary damage and a systemic inflammatory response in cynomolgus monkeys
Eun-Jung Park, Soo Nam Kim, Cheolho Yoon, Jae-Woo Cho, Gwang-Hee Lee, et al.
Nanotoxicology, 2021
