J
June-Gunn Lee
Researcher at Korea Institute of Science and Technology
Publications - 31
Citations - 906
June-Gunn Lee is an academic researcher from Korea Institute of Science and Technology. The author has contributed to research in topics: Fracture toughness & Flexural strength. The author has an hindex of 14, co-authored 31 publications receiving 826 citations. Previous affiliations of June-Gunn Lee include KAIST.
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Journal ArticleDOI
Role of electronic perturbation in stability and activity of Pt-based alloy nanocatalysts for oxygen reduction.
Seung Jun Hwang,Soo-Kil Kim,June-Gunn Lee,Seung-Cheol Lee,Jong Hyun Jang,Pil Kim,Tae Hoon Lim,Yung-Eun Sung,Sung Jong Yoo +8 more
TL;DR: A solution-based approach to the preparation of Pt-based alloy with early transition metals and realistic parameters for the stability and activity of Pt(3)M nanocatalysts for oxygen reduction reaction (ORR) are reported.
Journal ArticleDOI
Effect of Initial α‐Phase Content on Microstructure and Mechanical Properties of Sintered Silicon Carbide
TL;DR: In this paper, the effects of initial α-phase content on the microstructure and the mechanical properties of the liquid phase-sintered and subsequently annealed materials were investigated.
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Enhanced stability and activity of Pt-Y alloy catalysts for electrocatalytic oxygen reduction.
Sung Jong Yoo,Soo-Kil Kim,Tae-Yeol Jeon,Seung Jun Hwang,June-Gunn Lee,Seung-Cheol Lee,Kug-Seung Lee,Yong-Hun Cho,Yung-Eun Sung,Tae Hoon Lim +9 more
TL;DR: P Pt-based alloys with early transition metals with significant electrocatalysis occurs during oxygen reduction reaction at the Pt-Y alloy electrodes, and the extent depends on the alloy composition.
Journal ArticleDOI
Promoting effects of La for improved oxygen reduction activity and high stability of Pt on Pt–La alloy electrodes
Sung Jong Yoo,Seung Jun Hwang,June-Gunn Lee,Seung-Cheol Lee,Tae-Hoon Lim,Yung-Eun Sung,Andrzej Wieckowski,Soo-Kil Kim +7 more
TL;DR: In this article, the d-band fillings and vacancies of Pt-M (M = Ti, Fe, Zr and La) are correlated with the oxygen reduction reaction and the stability of the reaction.
Journal ArticleDOI
Microstructure and Mechanical Properties of alpha-Silicon Carbide Sintered with Yttrium-Aluminum Garnet and Silica
TL;DR: In this article, the effect of glassy-phase chemistry, using Y3Al5O12 (YAG) and SiO2 as sintering additives, on the microstructure and mechanical properties of liquid-phase-sintered, and subsequently annealed, α-SiC materials was investigated.