A5103246480- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Nonlinear Optical Materials Research
- Advanced battery technologies research
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and properties of polymers
- Polyoxometalates: Synthesis and Applications
- Fuel Cells and Related Materials
- Organic Electronics and Photovoltaics
- Liquid Crystal Research Advancements
- Nonlinear Optical Materials Studies
- Photochromic and Fluorescence Chemistry
- Luminescence and Fluorescent Materials
- Dendrimers and Hyperbranched Polymers
- Advanced Photocatalysis Techniques
- Photoreceptor and optogenetics research
- Polymer Nanocomposites and Properties
- Chemical Synthesis and Characterization
- Molecular Sensors and Ion Detection
- Analytical Chemistry and Sensors
- Iterative Learning Control Systems
- Porphyrin and Phthalocyanine Chemistry
Korea Research Institute of Chemical Technology
2016-2025
Korea University of Science and Technology
2017-2025
Kyungpook National University
2016-2025
Inha University
2024
Government of the Republic of Korea
2015-2021
Daejeon University
2014-2021
Chonnam National University
2021
Advanced Institute of Convergence Technology
2020
Catholic University of Korea
2018
Korea Institute of Industrial Technology
2013-2017
Hierarchical Ru- and RuO<sub>2</sub>-foams show excellent cyclability good oxygen efficiency when used as catalyst cathode material for lithium–oxygen batteries.
The development of highly efficient catalysts in the cathodes rechargeable Li–O2 batteries is a considerable challenge. Polyelemental consisting two or more kinds hybridized are particularly interesting because combination electrochemical properties each catalyst component can significantly facilitate oxygen evolution and reduction reactions. Despite recent advances that have been made this field, number elements has largely limited to metals. In study, we demonstrate behavior containing...
A family of oligo(ethyleneoxy)cyclotriphosphazenes was synthesized as low molecular (or oligomeric) ionic conductors (plasticizer) and incorporated with lithium salt into semi-interpenetrating network (semi-IPN) solid polymer electrolytes (SPEs) for the improvement conductivity. novel semi-IPN SPE prepared by in situ radical polymerization precursor solution containing a new cross-linker PA6 plasticizers PMEn (n = 2, 4, 6, 8) based on cyclotriphosphazenes, which exhibited high conductivity...
Lithium‐oxygen batteries represent a significant scientific challenge for high‐rate and long‐term cycling using oxygen electrodes that contain efficient electrocatalysts. The mixed transition metal oxide catalysts provide the most catalytic activity partial heterogeneous surface cations with vacancies as active phase. They include multiple oxidation states vacancies. Here, combination of transmission electron microscopy, differential electrochemical mass spectrometry, X‐ray photoelectron...
Sulfide‐based inorganic solid electrolytes are promising materials for high‐performance safe solid‐state batteries. The high ion conductivity, mechanical characteristics, and good processability of sulfide‐based desirable properties realizing batteries by replacing conventional liquid electrolytes. However, the low chemical electrochemical stability hinder commercialization Particularly, instability is intensified in cathode, comprising various materials. In this study, carbonate‐based ionic...
Solid polymer electrolytes have garnered significant attention for lithium batteries because of their flexibility and safety. However, poor ionic conductivity, dendrite formation, high impedance hinder practical application. In this study, a thin, flexible, 3D hybrid solid electrolyte (3DHSE) is prepared by in situ thermal cross‐linking polymerization with electrospun nanowebs. The 3DHSE comprises Al‐doped Li 7 La 3 Zr 2 O 12 (ALLZO) embedded poly(vinylidene fluoride‐ co...
<title>Abstract</title> Non-conventional epitaxial techniques, such as van der Waals epitaxy (vdWE) and remote epitaxy, have attracted substantial attention in the semiconductor research community for their exceptional capability to continuously produce high-quality free-standing films on a single mother wafer without needing surface refurbishment. The successful implementation of these emerging techniques crucially hinges creating robust uniform two-dimensional (2D) material at wafer-scale...
Abstract To fabricate a sustainable lithium‐oxygen (Li‐O 2 ) battery, it is crucial to identify an optimum electrolyte. Herein, found that tetramethylene sulfone (TMS) and lithium nitrate (LiNO 3 form the electrolyte, which greatly reduces overpotential at charge, exhibits superior oxygen efficiency, allows stable cycling for 100 cycles. Linear sweep voltammetry (LSV) differential electrochemical mass spectrometry (DEMS) analyses reveal neat TMS oxidative decomposition exhibit good...
We demonstrate a facile but very effective approach to improve the cycling efficiency of metallic lithium electrodes by controlling pore morphology separators. employed anodized porous alumina as model nanoporous separator and demonstrated improvement cycle in lithium–oxygen cells.
This study proposes a new nanostructured conductive polymer synthesis method that can grow the single-crystalline high-density plasma-polymerized nanoparticle structures by enhancing sufficient nucleation and fragmentation of pyrrole monomer using novel atmospheric pressure plasma jet (APPJ) technique. Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron (XPS), field emission scanning (FE-SEM) results show (pPPy) nanoparticles have fast...
This work presents a study on the preparation of plasma-polymerized aniline (pPANI) nanofibers and nanoparticles by an intense plasma cloud type atmospheric pressure jets (iPC-APPJ) device with single bundle three glass tubes. The nano size polymer was obtained at sinusoidal wave peak value 8 kV frequency 26 kHz under ambient air. Discharge currents, photo-sensor amplifier, optical emission spectrometer (OES) techniques were used to analyze produced from iPC-APPJ device. Field scanning...
Core–shell Si–CNT@C nanofibers as anodes in LIBs can minimize the volume change and improve conductivity, enhancing battery performance.
Although polymerized aniline (polyaniline, PANI) with and without iodine (I₂) doping has already been extensively studied, little work done on the synthesis of PANI films using atmospheric pressure plasma (APP) deposition. Therefore, this study characterized pure I₂-doped synthesized an advanced APP polymerization system. The I₂ was conducted ex-situ chamber method following were structurally analyzed field emission scanning electron microscope (FE-SEM), atomic force (AFM), X-ray Diffraction...
Differential electrochemical mass spectrometry (DEMS) results clearly show that dimethylacetamide (DMA) is more stable and exhibits better performance than tetraethylene glycol dimethyl ether (TEGDME), suggesting DMA a favorable electrolyte for Li–O<sub>2</sub> battery applications.
Morphology-controlled Pd nanodendrites were synthesized on CPC-functionalized graphene and they exhibited excellent catalytic activity towards oxygen reduction evolution reactions.
In this work, crosslinkers were prepared by conjugating high- and low-molecular-weight gelatin with different mole ratios of itaconic acid (IA) double bonds. Then, the gelatin-itaconic (gelatin-IA) compared gelatin-methacrylate (gelatin-MA) crosslinkers. The molecular weights structures gelatin-MA gelatin-IA confirmed using gel permeation chromatography (GPC) nuclear magnetic resonance (NMR). Additionally, swelling ratio biodegradation properties hydrogels IA as starting monomers...