A5049235317- Plasma Applications and Diagnostics
- Plasma Diagnostics and Applications
- Electrohydrodynamics and Fluid Dynamics
- Surface Modification and Superhydrophobicity
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Microplastics and Plastic Pollution
- Graphene research and applications
- Graphene and Nanomaterials Applications
- Diamond and Carbon-based Materials Research
- Electrocatalysts for Energy Conversion
- Advancements in Solid Oxide Fuel Cells
- Carbon and Quantum Dots Applications
- Plasma and Flow Control in Aerodynamics
- Vacuum and Plasma Arcs
- Insect Pheromone Research and Control
- Advanced Surface Polishing Techniques
- Advanced battery technologies research
- Recycling and Waste Management Techniques
- Plant Genetic and Mutation Studies
- Plant Parasitism and Resistance
- Marine Biology and Environmental Chemistry
- Agriculture, Soil, Plant Science
- Advanced Battery Technologies Research
Korea Institute of Fusion Energy
2010-2025
Polyethylene is widely used and a major cause of serious environmental problems because it non-biodegradable difficult to recycle. To overcome these problems, in this study, low-density polyethylene (LDPE) was treated with low-temperature plasma at atmospheric pressure, an eco-friendly technology. After inducing oxidation on the LDPE film by treatment, method for improving biodegradation efficiency LDPE-degrading bacteria identified, underlying mechanism investigated. Fourier-transform...
The effects of the addition hydrogen on properties an argon plasma jet generated using a microwave source under low-pressure conditions were experimentally investigated. Hydrogen was introduced at concentrations 0.1%–1%, and resulting changes in characteristics analyzed optical emission spectroscopy (OES) Langmuir probe (LP) measurements. length decreased significantly, reduction over 60% occurred concentration 0.4% compared to that pure plasma. OES results indicated Ar I intensities...
The weight reduction of the bipolar plate (BP) is essential for commercializing unitized regenerative fuel cells (URFCs). In order to lighten plate, we have used Pb/C composite powder as a cost-effective primary material, which mixture low-density graphite and lead. Further, varied lead-carbon ratios (1: 8, 1:4, 1:1, 4:1, 8:1) were investigated fabricating by hot-pressing process adding styrene-butadiene rubber (SBR) binder. specific surface area, porosity, microstructure characteristics...
The concept of a water surface plasma source (WSPS) was proposed to directly interact plasmas with for large area treatment, which is the type volume dielectric barrier discharge (vDBD) plate-to-plate. One electrode submerged in water, while other floated air, covered material. characteristics WSPS were investigated by using complementary metal–oxide–semiconductor (CMOS) camera, voltage and current probes, optical emission spectroscopy (OES). electrochemical parameters plasma-activated (PAW,...
The surface of 180-μm polyethylene (PE) and 200-nm polytetrafluoroethylene (PTFE) powders are hydrophilized by using dielectric barrier discharge (sDBD) applied to a batch 20 g for both cases. On the sDBD electrode, charged particles plasma generation able diffuse onto power through small voids. In order know level hydrophilic treatment on powder, absorption tests droplet was carried out. This principle is based fact that inner gap between enough liquid with certain tension absorbed or...
This paper is focused on carbon coating of anatase type TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> by underwater discharge with a capillary in water electrode. The electrode consists graphite covered an alumina tube for insulation and ground aqueous solution used discharging tap electric conductivity about 120 μS/cm. applied power 500 W. As result TEM energy dispersive spectrum measurements, layer thickness several nanometers...
Carbon powders exhibit electrical conductivity that causes the to agglomerate due applied electrostatic forces and discharges capacitance when used for surface treatments with plasma sources. To avoid this obstacle, a non-direct method is active gas generated through plasma. This in contact carbon powder so hydrophilic characteristics are formed. It carboxyl COO− functional group improvement it shown increase after soft oxidation. The wettability of gradually improves more treatment time....
Surface dielectric barrier discharge (SDBD) plasma was generated with alumina powder on an SDBD electrode.Because of the higher constant solid powder, a electric field is applied in pores created by particles.Depending particle sizes and gas species, power consumption total capacitance have characteristic trends.As size decreases, volume channels consumed at given voltage decreased for helium (He) discharge; however, opposite observed sulfur hexafluoride (SF6) atmospheric pressure.The from...
Water, which is treated in an dielectric barrier discharge (DBD) apparatus at atmospheric pressure, has some characteristics similar to ozone water. Since a ceramic electrode used as the upper and water lower DBD system, plasma directly contact with surface. The air layer located between two electrodes subject high voltage various gases, such ozone, oxides of nitrogen, etc, are produced by discharge. These gases react physically chemically change This strong sterilizing oxidizing ability....
SiC wafers were etched using a filament plasma of He:NF3:O2 (helium:nitrogen trifluoride:oxygen) mixed gas at atmospheric pressure. When 0.5–2 sccm NF3 was to 2 slm He plasma, the etch depth and rate increased, but there little change in width as mixing amount increased. The increment also suppressed surface roughening etching. addition O2 He-NF3 slightly increased wafer rate. sccm, roughness sharply by addition. On contrary, 1 sccm; reduced more than that pristine. pristine specimens is...