A5021097515- Advanced battery technologies research
- 2D Materials and Applications
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Advanced Battery Materials and Technologies
- Electrochemical Analysis and Applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Chemical Synthesis and Analysis
- Quantum, superfluid, helium dynamics
- Advanced Photocatalysis Techniques
- Ga2O3 and related materials
- Complex Systems and Time Series Analysis
- Cold Atom Physics and Bose-Einstein Condensates
- Economic theories and models
- Spectroscopy and Quantum Chemical Studies
- Financial Markets and Investment Strategies
- Material Dynamics and Properties
- Ionic liquids properties and applications
- Molecular spectroscopy and chirality
- Electrochemical sensors and biosensors
- Advanced Sensor and Energy Harvesting Materials
- Metalloenzymes and iron-sulfur proteins
Seoul National University
2017-2021
Seoul Institute
2019
University of Nottingham
2017
University of California, Berkeley
2017
Two-dimensional (2D) transition-metal dichalcogenides (2D TMDs) in the form of MX2 (M: transition metal, X: chalcogen) exhibit intrinsically anisotropic layered crystallinity wherein their material properties are determined by constituting M and X elements. 2D platinum diselenide PtSe2) is a relatively unexplored class TMDs with noble-metal Pt as M, offering distinct advantages over conventional such higher carrier mobility lower growth temperatures. Despite projected promise, much its...
We investigate the charging phenomena of an electric double layer capacitor (EDLC) by conducting both equilibrium and non-equilibrium molecular dynamics (MD) simulations.
Platinum ditelluride (PtTe2) is an emerging semimetallic two-dimensional (2D) transition-metal dichalcogenide (TMDC) crystal with intriguing band structures and unusual topological properties. Despite much devoted efforts, scalable controllable synthesis of large-area 2D PtTe2 well-defined layer orientation has not been established, leaving its projected structure-property relationship largely unclarified. Herein, we report a low-temperature growth layers on area greater than few square...
Abstract Heterogeneously integrated 2D van der Waals (vdW) solids composed of compositionally distinct atomic layers are envisioned to exhibit exotic electrical/optical properties unattainable with their monocomponent counterparts. However, the underlying principle for morphology‐controlled chemical vapor deposition (CVD) growth and its associated variables have not been clarified, leaving projected technological opportunities far from being realized. Herein, by employing tungsten trioxide...
Three-dimensionally flexible vertical 2D MoS<sub>2</sub>layers are reported.
Abstract Nicotinamide adenine dinucleotide (NAD + ) is one of the most well‐known redox cofactors carrying electrons. Now, it reported that intrinsically charged NAD motif can serve as an active electrode in electrochemical lithium cells. By anchoring by anion incorporation, activity successfully implemented conventional batteries, exhibiting average voltage 2.3 V. The operating and capacity are tunable altering species without modifying center itself. This work not only demonstrates...
We unveil that the conformational change of a single organic molecule during redox reaction leads to impressive battery performance for first time. propose model material, phenoxazin-3-one derivative, as new redox-active bioinspired Li-ion rechargeable battery. The cathode delivered high discharge capacity (298 mAh g–1) and fast rate capability (65% retention at 10 C). elaborate mechanism pathway Li+-coupled reaction. molecular structure alteration lithium-coupled electron transfer enables...
Benefiting from a large density of layer edges exposed on the surface, vertically aligned two-dimensional (2D) molybdenum disulfide (MoS2) layers have recently harvested excellent performances in field electrochemical catalysis and chemical sensing. With their increasing versatility for high-temperature, demanding applications, it is vital to identify thermally driven structural stability, as well clarify its underlying principle. Despite various ex situ characterizations horizontally 2D...
Abstract The nature of hydrated protons formed at water/metal interfaces is one the most intriguing research questions in field interfacial chemistry. We prepared coadsorption layers hydrogen and water on a Pt(111) surface ultrahigh vacuum studied ionization adsorbed atoms to H + ions by employing combined experimental theoretical approach. Spectroscopic evidence obtained mass spectrometry reflection absorption infrared spectroscopy as well corresponding density functional theory...
Abstract Nicotinamide adenine dinucleotide (NAD + ) is one of the most well‐known redox cofactors carrying electrons. Now, it reported that intrinsically charged NAD motif can serve as an active electrode in electrochemical lithium cells. By anchoring by anion incorporation, activity successfully implemented conventional batteries, exhibiting average voltage 2.3 V. The operating and capacity are tunable altering species without modifying center itself. This work not only demonstrates...
We investigate the dimensional dependence of dynamical fluctuations related to dynamic heterogeneity in supercooled liquid systems using kinetically constrained models. The d-dimensional spin-facilitated East model with embedded probe particles is used as a representative super-Arrhenius glass forming system. examine existence an upper critical dimension this by considering decoupling transport rates through effective fractional Stokes-Einstein relation, D∼τ−1+ω, D and τ diffusion constant...
Activation entropy (ΔS‡) is not normally considered the main factor in determining reactivity of unimolecular reactions. Here, we report that intramolecular degradation six-membered ring compounds mainly determined by ΔS‡, which strongly influenced ring-flipping motion and substituent geometry. Starting from unique difference between pH-dependent kinetics geometric isomers 1,2-cyclohexanecarboxylic acid amide (1,2-CHCAA), where only cis isomer can readily degrade under weakly acidic...
The nature of hydrated protons formed at water/metal interfaces is one the most intriguing research questions in field interfacial chemistry. We coadsorbed hydrogen and water on a Pt(111) surface ultrahigh vacuum studied ionization adsorbed atoms to H + ions by employing combined experimental theoretical approach. Spectroscopic evidence obtained mass spectrometry reflection absorption infrared spectroscopy as well corresponding density functional theory calculations consistently show that...
Energiespeicherung Das biologisch aktive Nicotinamid-Adenin-Dinukleotid-Motiv ermöglicht eine reversible in Lithiumionenbatterien, wie C. B. Park, K. Kang et al. ihrer Zuschrift auf S. 16920 zeigen.