A5009010634- Advanced Photocatalysis Techniques
- Polymer composites and self-healing
- Copper-based nanomaterials and applications
- Particle Dynamics in Fluid Flows
- TiO2 Photocatalysis and Solar Cells
- Acoustic Wave Phenomena Research
- Gas Sensing Nanomaterials and Sensors
- Polymer Foaming and Composites
- ZnO doping and properties
- Natural Fiber Reinforced Composites
- Advanced Cellulose Research Studies
- Aerosol Filtration and Electrostatic Precipitation
- Gas Dynamics and Kinetic Theory
- Cellular and Composite Structures
- Surface Roughness and Optical Measurements
- Quantum Dots Synthesis And Properties
- Electrocatalysts for Energy Conversion
- Coagulation and Flocculation Studies
- Fuel Cells and Related Materials
- Vibration Control and Rheological Fluids
- Engineering Applied Research
- Pigment Synthesis and Properties
- Marine Sponges and Natural Products
- Electrospun Nanofibers in Biomedical Applications
- Transition Metal Oxide Nanomaterials
University of Seoul
2016-2025
Seoul National University
2007-2014
University of Minnesota
2005
University of Maryland, College Park
2003-2004
National Institute of Standards and Technology
2002-2004
Optica
2002
We demonstrate all-solid-state flexible supercapacitors with high physical flexibility, desirable electrochemical properties, and excellent mechanical integrity, which were realized by rationally exploiting unique properties of bacterial nanocellulose, carbon nanotubes, ionic liquid based polymer gel electrolytes. This deliberate choice design main components led to supercapacitor performance such as tolerance against bending cycles capacitance retention over charge/discharge cycles. More...
Eco-friendly cellulose nanofibers (CNFs), a core constituent of cellulose, have garnered increasing attention as promising sustainable building block source for advanced materials in various application fields. In the present study, we successfully fabricate nanofiber paper from CNF suspension and explore its potential to separator membrane lithium-ion batteries. contrast macro/microscopic fibers that been commonly used typical papers, CNFs are characterized by nanometer-scale...
Abstract Chemical modifications of wood fibers (Lignocel® C120) were performed for biocomposite applications, and chemically modified analyzed by FTIR spectroscopy. NaOH treatment showed band shifts from Cell‐I to Cell‐II in spectra 2902 cm −1 , 1425 1163 983 897 2894 1420 1161 993 895 the change peak height at 1111 1059 assigned structure. Silane changes 1200 as SiOC band, 765 SiC symmetric stretching bond, 700 SiOSi stretching, 465 asymmetric bending. Benzoyl resulted an increase...
Harvesting solar energy attracts great attention due to its abundant, clean, and permanent characteristics. Thus, photocatalysts have emerged as promising candidates for converting the practically useful hydrogen molecules. Tremendous efforts been devoted in developments of efficient water splitting, but most utilize noble metals improve photocatalytic performance. Progress photocatalyst materials production coupled with a better understanding basic catalytic mechanisms has enabled selection...
Flexible polyurethane (PU) foams are widely used in automotive industries as sound absorbing materials because their porous structure is beneficial for waves. With growing concerns about environment pollution, many studies have been conducted to investigate the environmental impact of PU fabricated with bio-derived instead using petroleum-based sources. In this study, castor oil-based bio-polyol and two types gelling catalysts (amine tin) were applied synthesis foams, absorption, compression...
Hydrogels have been widely studied and used in biomedical pharmaceutical applications. However, their fragile character poor mechanical properties limit feasibility for Incorporating nature-derived nanoparticles can enhance the structural integrity of hydrogels by creating a stable network, resulting with robust properties. This study prepared 5 wt % poly(vinyl alcohol) (PVA)-based reinforced different amounts cellulose nanocrystals (CNCs), ranging from 0 to 20 phr relative PVA. The were...
The growing need for sustainable energy development has become a critical issue due to worsening environmental pollution and climate change. Among the various technologies, photoelectrochemical technology been recognized as one of essential approaches advancing production. Out semiconductor materials used in PEC systems, cadmium sulfide (CdS) selenide (CdSe) have widely studied promising candidates their advantageous properties. CdS, with bandgap 2.4 eV high photoactivity, CdSe, narrower 1.9...