Seong Ju Hwang
Yonsei University
324 Papers
2K Citations
Seong Ju Hwang is an academic researcher from Yonsei University. The author has contributed to research in topics: Oxide & Nanosheet. The author has an hindex of 50, co-authored 299 publications. Previous affiliations of Seong Ju Hwang include University of Bordeaux & UPRRP College of Natural Sciences.
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Papers
Photofunctional Nanosheet-Based Hybrids
Jayavant L. Gunjakar,In Young Kim,Seong Ju Hwang +2 more
- 01 Jan 2017
TL;DR: In this article, the authors introduce the applications of 2D inorganic nanosheets as effective building blocks for photofunctional hybrid with inorganic, organic, bio-, and polymer species.
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Erratum: Synthesis of new visible light active photocatalysts of ba(In 1/3Pb1/3M′1/3)O3 (M′ = Nb, Ta): A band gap engineering strategy based on electronegativity of a metal component (Journal of Physical Chemistry B (2005) 109)
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X-ray Absorption Spectroscopic Study on the Electronic Structure of Copper and Ruthenium Ions in RuSr 2 GdCu 2 O 8 Superconductor
Su-Gil Hur,Seong Ju Hwang +1 more
TL;DR: In this paper, the electronic structure of Cu and Ru ions in magnetic RuSr2GdCu2O8 superconductor has been investigated by using X-ray absorption spectroscopy (XAS).
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•Journal Article
Chimie Douce Reaction to Layered High-T c Superconducting/Super-ionic Conducting Heterostructures
TL;DR: In this paper, a new type of superconducting-superionic conducting nanohybrids, Ag x I w Bi ₂Sr₂Ca n-1 Cu n O y (n=1 and 2) was developed by applying the chimie douce reaction to the superconducted Bi-based cuprates.
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Highly Selective Photoreduction of CO<sub>2</sub> with Suppressing H<sub>2</sub> Evolution over Monolayer Layered Double Hydroxide under Irradiation above 600 nm
Ling Tan,Si-Min Xu,Zelin Wang,Yanqi Xu,Xian Wang,Xiaojie Hao,Sha Bai,Chenjun Ning,YU WANG,Wenkai Zhang,Yun-Kyung Jo,Seong Ju Hwang,Xingzhong Cao,Xusheng Zheng,Hong Yan,Yufei Zhao,Haohong Duan,Yu-Fei Song,Ling Tan,Si-Min Xu,Zelin Wang,Yanqi Xu,Xian Wang,Xiaojie Hao,Sha Bai,Chenjun Ning,YU WANG,Wenkai Zhang,Yun-Kyung Jo,Seong Ju Hwang,Xingzhong Cao,Xusheng Zheng,Hong Yan,Yufei Zhao,Haohong Duan,Yu-Fei Song +35 more
Abstract: Abstract Although progress has been made to improve photocatalytic CO 2 reduction under visible light ( λ >400 nm), the development of photocatalysts that can work under a longer wavelength ( λ >600 nm) remains a challenge. Now, a heterogeneous photocatalyst system consisting of a ruthenium complex and a monolayer nickel‐alumina layered double hydroxide (NiAl‐LDH), which act as light‐harvesting and catalytic units for selective photoreduction of CO 2 and H 2 O into CH 4 and CO under irradiation with λ >400 nm. By precisely tuning the irradiation wavelength, the selectivity of CH 4 can be improved to 70.3 %, and the H 2 evolution reaction can be completely suppressed under irradiation with λ >600 nm. The photogenerated electrons matching the energy levels of photosensitizer and m‐NiAl‐LDH only localized at the defect state, providing a driving force of 0.313 eV to overcome the Gibbs free energy barrier of CO 2 reduction to CH 4 (0.127 eV), rather than that for H 2 evolution (0.425 eV).
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