4 papers
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…
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…
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…
Revealing the formation and electrochemical properties of bis(trifluoromethanesulfonyl) imide intercalated graphite with first-principles calculations
Chol-Jun Yu, Un-Song Ri, Gum-Chol Ri +1
Graphite has been reported to have anion as well as cation intercalation capacities as both cathode and anode host materials for the dual ion battery. In this work, we study the in…