A5100369145- Diamond and Carbon-based Materials Research
- Advancements in Battery Materials
- Graphene research and applications
- Boron and Carbon Nanomaterials Research
- Vacuum and Plasma Arcs
- Plasma Applications and Diagnostics
- Catalytic Processes in Materials Science
- X-ray Diffraction in Crystallography
- ZnO doping and properties
- Nanomaterials and Printing Technologies
- Advanced Battery Materials and Technologies
- Plasma Diagnostics and Applications
- Crystallization and Solubility Studies
- Fiber-reinforced polymer composites
- Advanced ceramic materials synthesis
- Surface Modification and Superhydrophobicity
- MXene and MAX Phase Materials
- Laser-Ablation Synthesis of Nanoparticles
- Synthesis and properties of polymers
- Metal and Thin Film Mechanics
- Fuel Cells and Related Materials
- Semiconductor materials and devices
- Epoxy Resin Curing Processes
- Silicon Nanostructures and Photoluminescence
- nanoparticles nucleation surface interactions
Wonkwang University
2020-2024
Emory University
2023-2024
Korea Institute of Energy Research
2020-2024
Chung-Ang University
2021-2023
Korea Advanced Institute of Science and Technology
2020-2021
Samsung (South Korea)
2003-2021
Jeju National University
2018-2020
Korea Research Institute of Chemical Technology
2017-2019
National Research Council Canada
2019
Planetary Science Institute
2017
Current fabrication of nanomaterials is facing the following two challenges: high selectivity toward specific chemical compositions or morphologies and their scalable production. This usually requires new extreme conditions beyond conventional approaches. Thermal plasma jets are flows partially ionized gases where gas electron temperatures reach equilibrium state around 10 000 K, thus provide fluxes energy chemically active species including electrons ions with strong spatial gradients. Such...
Abstract To address the urgent demand for sustainable battery manufacturing, this review contrasts traditional wet process with emerging dry electrode technologies. Dry stands out because of its reduced energy and environmental footprint, offering considerable economic benefits facilitating production high‐energy‐density electrodes. We spotlight technological innovations that exemplify paradigm shift towards eco‐friendliness cost‐efficiency. This synthesizes latest developments in...
The high-fidelity detection of labile zinc is central importance for understanding the molecular mechanisms that link homeostasis and human pathophysiology. Fluorescence ratiometric sensors are most suitable trafficking intracellular ions. Here, we report development fluorescence (HN1 HN2) based on two-fluorophore platforms. sensor constructs include blue fluorescent umbelliferone an energy-accepting chromophore absorbs fluorescence. Zinc binding was found to promote turn-on emission by...
For years, there has been a strong drive for sub-micron pixel development, in spite of reaching the visible light diffraction limit, because smaller pitch CMOS image sensors (CISs) is inevitably required ever-miniaturizing camera modules as mobile devices incorporate more cameras, few which are dedicated to ultra-high-resolution zoomed images [1]. To that end, sensor vendors have tried find new ways avoid reduction sensitivity and crosstalk through architecture change and/or fabrication...
We describe complementary methods for synthesizing acyclic vinylic ethers from two carbohydrate-derived synthons. compare a non-stereoselective modified Julia olefination approach with newer, stereoselective catalytic C-O cross-coupling method, preparing 1,2-disubstituted structural and stereochemical complexity on both sides of the ether linkage. Upon epoxidation / in situ oxacyclization products, we have synthesized disaccharides alpha-D-galacto-, alpha-D-talo-, beta-D-allo-,...
Triple dc plasma torch system was used for the synthesis of nanoparticles. Three thermal jets are ejected from each and they merged into a strong single plume. Since feedstock is injected jet merging area, this suitable refractory nanoparticle enable to high production yield caused by complete evaporation possible. In paper, numerical simulation carried out analyze characteristic inside reactor according plasma-forming gas carrier compositions: Ar, Ar-H <sub...
Thermal plasma has been presented for the decomposition of perfluorocompounds (PFCs) which are extensively used in semiconductor manufacturing and display industry. We developed pilot-scale equipment to investigate large scale treatment PFCs called it a “thermal scrubber”. such as CF4, C2F6, SF6, NF3 experiments were diluted with N2. There two different types experiment setup related water spray direction inside thermal scrubber. The first type was that sprayed directly into gas outlet...
Abstract Silicon nanopowder that can be applied as a selective emitter in solar cells was prepared from the decomposition of silane (SiH 4 ) gas by radio‐frequency (RF) thermal plasma. The RF plasma offers high‐temperature and contamination‐free environment to produce pure silicon material SiH . A steep temperature gradient enables rapid quenching decomposed synthesize nanosized particles. In this experiment, input power controlled 8 12 kW. raw injected into an argon plume with carrier gas....
Abstract Mid-infrared spectroscopic observations of oxygen-rich asymptotic giant branch (AGB) stars show the common presence dust species that have a broad feature at ∼11–12 μ m. Chemically synthesized amorphous alumina (Al 2 O 3 ) is widely accepted as source this emission, although it not obvious can condense in circumstellar conditions. We performed condensation experiments Al–Si–Mg–O and Mg–Al–O gases using induction thermal plasma systems, which small particles from vapors with steep...
The tungsten carbide nanomaterials were synthesized in the triple DC thermal plasma jet system using refractory tungsten, and carbon sources such as multi wall nanotube (MWCNT), amorphous methane. starting materials evaporated high temperature region of jet, then condensed particles prepared nanoscale under 100 nm. effect was investigated on a view crystal phase structure morphology. W₂C nanoparticles mainly WC WC1-x observed additionally with all sources. From MWCNT material, attached...
Titanium, nickel, and tungsten boride nanoparticles were synthesized in the triple thermal plasma jet system. The coalesced high-enthalpy not only generates extensive high temperature regions but also allows starting materials to penetrate into center of effectively. synthesis process metal was investigated according nucleation three metals boron. In case titanium nickel borides synthesis, temperatures are lower than crystallinity higher nanoparticles, since is Gibbs free energy all whole...