39 citations · 59 across the 8 of their papers we have counts for
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Contrary Effect of B and N Doping into Graphene and Graphene Oxide Heterostructures with MoS on Interface Function and Hydrogen Evolution
Chol-Hyok Ri, Yun-Sim Kim, Kum-Chol Ri +2
Molybdenum disulfide (MoS) attracts attention as a high efficient and low cost photocatalyst for hydrogen production, but suffers from low conductance and high recombination ra…
Influence of M/A substitution on material properties of intermetallic compounds MSn (M = Fe, Co; A = Li, Na): A first-principles study
Chol-Jun Yu, Un-Song Hwang, Yong-Chol Pak +4
Iron and cobalt distannides \ce{MSn2} (M = Fe, Co) are regarded as a promising conversion-type anode material for lithium- and sodium-ion batteries, but their properties are not we…
Influence of Ti/V Cation-Exchange in NaTiO on Na-Ion Negative Electrode Performance: an Insight from First-Principles Study
Chol-Jun Yu, Suk-Gyong Hwang, Yong-Chol Pak +3
Sodium-titanate \ce{Na2Ti3O7} (NTO) is regarded as a highly promising anode material with a very low voltage for Na-ion batteries and capacitors, but suffered from relatively low s…
Manifestation of the thermoelectric properties in Ge-based halide perovskites
Un-Gi Jong, Chol-Jun Yu, Yun-Hyok Kye +2
In spite of intensive studies on the chalcogenides as conventional thermoelectrics, it remains a challenge to find a proper material with high electrical but low thermal conductivi…
Molecular dynamics study of the effect of moisture and porosity on thermal conductivity of tobermorite 14 Å
Song-Nam Hong, Chol-Jun Yu, Kum-Chol Ri +2
The effect of moisture and porosity on thermal conductivity of tobermorite 14 Å~as the major component of cement paste is studied by using molecular dynamics simulation with ClayFF…
First-principles study on luminescence properties of Eu-doped defect pyrochlore oxide KNbWOHO:Eu
Song-Hyok Choe, Chol-Jun Yu, Myong Choe +3
Defect pyrochlore oxides have attracted a great interest as promising luminescent materials due to their flexible composition and high electron/hole mobility. In this work, we inve…