18 citations · 19 across the 3 of their papers we have counts for
7 papers
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 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…
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…
Interface Engineering in Hybrid Iodide CH3NH3PbI3 Perovskite Using Lewis Base and Graphene towards High Performance Solar Cells
Chol-Jun Yu, Yun-Hyok Kye, Un-Gi Jong +6
Perovskite solar cells have achieved a substantial breakthrough via advanced interface engineerings. Reports have emphasized that combining the hybrid perovskites with Lewis base a…
First-Principles Study on NaxTiO2 with Trigonal Bipyramid Structures: An Insight into Sodium-Ion Battery Anode Application
Song-Hyok Choe, Chol-Jun Yu, Kum-Chol Ri +4
Developing efficient anode materials with low electrode voltage, high specific capacity and superior rate capability is urgently required on the road to commercially viable sodium-…
Two-dimensional hybrid composites of SnS2 with graphene and graphene oxide for improving sodium storage: A first-principles study
Kum-Chol Ri, Chol-Jun Yu, Jin-Song Kim +1
Among the recent achievements of sodium-ion battery (SIB) electrode materials, hybridization of two-dimentional (2D) materials is one of the most interesting appointments. In this…