A5045180264- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Catalysis for Biomass Conversion
- Catalysts for Methane Reforming
- Perovskite Materials and Applications
- Zeolite Catalysis and Synthesis
- Catalysis and Oxidation Reactions
- Industrial Gas Emission Control
- Biodiesel Production and Applications
- Process Optimization and Integration
- Mesoporous Materials and Catalysis
- Solid-state spectroscopy and crystallography
- Phase Equilibria and Thermodynamics
- Quantum Dots Synthesis And Properties
- Seaweed-derived Bioactive Compounds
- Electrocatalysts for Energy Conversion
- Ionic liquids properties and applications
- Porphyrin and Phthalocyanine Chemistry
- Carbon Nanotubes in Composites
- Optical properties and cooling technologies in crystalline materials
- Luminescence and Fluorescent Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Nanomaterials for catalytic reactions
- Gas Sensing Nanomaterials and Sensors
- Membrane Separation and Gas Transport
Pukyong National University
2012-2024
Pusan National University
1994-2024
Gwangju Institute of Science and Technology
2018-2020
Government of the Republic of Korea
2015-2019
Gwangju University
2018-2019
Biology of Infection
2012
Kyung Hee University
2011
Pohang University of Science and Technology
1991-2009
Samsung (South Korea)
2008
Ajou University
2008
Organic–inorganic lead halide perovskite is emerging as a potential emissive material for light emitting devices, such as, diodes (LEDs) and lasers, which has emphasized the necessity of understanding its fundamental opto-physical properties. In this work, temperature-dependent photoluminescence CH3NH3PbBr3 quantum dots (QDs), polycrystalline thin film (TF), single crystal (SC) been studied. The optophysical properties, exciton–phonon scattering, exciton binding energy, decay dynamics, were...
The bioactive materials in brown seaweeds hold great interest for developing new drugs and healthy foods. oil content (Saccharina japonica Sargassum horneri) was extracted by using environmentally friendly supercritical CO2 (SC-CO2) with ethanol as a co-solvent semi-batch flow extraction process compared the results conventional hexane, ethanol, acetone mixed methanol (1:1, v/v). SC-CO2 method used at temperature of 45 °C pressure 250 bar. rate (27 g/min) constant entire period 2 h. obtained...
PLQY and charge carrier mobility of perovskite quantum QDs were enhanced by the optimization crystallinity solid-state ligand exchange.
Macroalgae-derived alginate was used as a renewable biomass feedstock for producing lactic acid in hydrothermal reaction catalyzed by metal oxides.
The photo-physical properties of halide perovskite films, photoluminescence intensity, and emission peak are controlled through solvent vapour annealing.
Abstract This study examines a search for new solvent extractive distillation using molecular simulation, and the performance of proposed processes solvents is compared to conventional processes. Unlike other procedures, finding technique relies on chemical structure similarity between extracted material without depending database. Two benzene, toluene, xylenes separation from naphtha reformate propene/propane are compiled with newly developed examination. The simulation demonstrates...
Thermochromism of organic/inorganic halide perovskites has attracted particular interest due to their potential applications as photoluminescence (PL)-based temperature sensors. However, despite the outstanding PL characteristics, use a thermochromic material in practical ranges been limited because poor thermal stability. In this study, we used quantum confinement effect and exceptional efficiency Cs4PbBr6 perovskite demonstrate high on/off ratio (20) reversible thermochromism solid state...
No gas too small: A synthetic potassium gallosilicate natrolite with Si/Ga=1.28 (denoted PST-1; see picture, Ga/Si gray, O red, K pink) was found to selectively adsorb small gases, especially H2, and hence discriminate them from slightly larger molecules such as Ar or CO2. The remarkable ease of its dehydration great (hydro)thermal stability make PST-1 a potential candidate for fast, selective H2 He separation processes.
Abstract The aim of this work was to acquire even and sphere-shaped silver nanoparticles (AgNPs) using statistical design experiment. AgNPs were produced by green synthesis method deoiled Saccharina japonica powder obtained after supercritical carbon dioxide (Sc-CO 2 ) extraction. Based on the Box-Behnken design, three variables influencing size identified as nitrate (AgNO 3 concentration, temperature, reaction time. Optimum conditions determined response surface methodology for AgNPs. We...