A5100344646- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Thin-Film Transistor Technologies
- Semiconductor materials and devices
- ZnO doping and properties
- Supercapacitor Materials and Fabrication
- Advancements in Photolithography Techniques
- Transition Metal Oxide Nanomaterials
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and interfaces
- Maritime Ports and Logistics
- Chemical Looping and Thermochemical Processes
- Electrocatalysts for Energy Conversion
- Moyamoya disease diagnosis and treatment
- Extraction and Separation Processes
- Advanced Sensor and Energy Harvesting Materials
- Iron oxide chemistry and applications
- Recycling and Waste Management Techniques
- Cyclone Separators and Fluid Dynamics
- Analytical Chemistry and Sensors
- Characterization and Applications of Magnetic Nanoparticles
- Structural Analysis of Composite Materials
- Cerebrovascular and genetic disorders
- Surface Chemistry and Catalysis
Korea Institute of Energy Research
2022-2025
Sungkyunkwan University
2017-2024
Samsung Medical Center
2021-2024
Dankook University
2024
Seoul National University Bundang Hospital
2022
Samsung (South Korea)
2004-2021
Seoul National University
2021
Suwon Research Institute
2020
Pohang University of Science and Technology
1999-2007
Pohang Accelerator Laboratory
2007
Accurate to size: Monodisperse magnetic iron oxide nanoparticles with a continuous size spectrum of 6–13 nm have been synthesized by procedure similar seed-mediated growth and characterized transmission electron microscopy (see picture) measurements. This method yields monodisperse directly without size-selection process. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z461665_s.pdf or from author. Please note: The publisher...
Lithium-ion battery development is one of the most active contemporary research areas, gaining more attention in recent times, following increasing importance energy storage technology. The galvanostatic intermittent titration technique (GITT) has become a crucial method among various electrochemical analyses for research. During step GITT, which consists constant current pulse followed by relaxation period, transient and steady-state voltage changes were measured. It draws both...
Paßgenau: Monodisperse magnetische Eisenoxid-Nanopartikel mit einer kontinuierlichen Größenverteilung zwischen 6 und 13 nm wurden durch ein Verfahren erhalten, das dem Wachstum an einem Impfling nachempfunden ist. Die Produkte Transmissionselektronenmikroskopie (siehe Bild) Magnetismusmessungen charakterisiert. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2001/2005/z461665_s.pdf or from author. Please note: The publisher not...
Ultrasensitive room-temperature operable gas sensors utilizing the photocatalytic activity of Na-doped p-type ZnO (Na:ZnO) nanoflowers (NFs) are demonstrated as a promising candidate for diabetes detection. The flowerlike Na:ZnO nanoparticles possessing ultrathin hierarchical nanosheets were synthesized by facile solution route at low processing temperature 40 °C. It was found that Na element acting dopant successfully incorporated in lattice. On basis NFs, chemiresistive-type realized,...
This review provides well-organized and up-to-date information about the key factors influencing properties performances of alkali-ion transition metal inorganic cathode materials by encompassing a wide scope from atomic to microscopic levels.
Bacterial cellulose nanofiber (BCNF) with high thermal stability produced by an ecofriendly process has emerged as a promising solution to realize safe and sustainable materials in the large-scale battery. However, understanding of actual behavior BCNF full-cell battery been lacking, yield is still limited for commercialization. Here, we report entire production manufacture. We systematically constructed strain highest (31.5%) increasing metabolic flux improved safety introducing Lewis base...
In this paper, we demonstrate high-performance and hysteresis-free solution-processed indium-gallium-zinc oxide (IGZO) thin-film transistors (TFTs) high-frequency-operating seven-stage ring oscillators using a low-temperature photochemically activated Al2O3/ZrO2 bilayer gate dielectric. It was found that the IGZO TFTs with single-layer dielectrics such as Al2O3, ZrO2, or sodium-doped Al2O3 exhibited large hysteresis, low field-effect mobility, unstable device operation owing to...
Background Although antiplatelet agents are frequently prescribed in moyamoya disease routine clinical practice, there no large-scale epidemiologic trials or randomized trial evidence to support their use patients with disease. Methods and Results Using the Korean National Health Insurance Service database, diagnosed between 2002 2016 were followed up for 14 years assess, using time-dependent Cox regression all a propensity score-matched cohort, association of therapy individual survival....
Lithium-ion batteries are being used in large-scale applications, making safety management a crucial issue. Overcharged areas created by inhomogeneous reactions can potentially induce cell degradation and failure. Despite the concerns, few techniques permit simple monitoring of diagnostic signals. Here, we propose electrochemical profiling to diagnose reaction inhomogeneity inside electrodes. Systematic measurements performed using LiNi0.8Co0.1Mn0.1O2 graphite electrodes from electrode-level...
Abstract Over the past few years, considerable attention has been paid to high‐Ni layered cathode materials for high‐energy Li‐ion batteries (LIBs); however, these intrinsically have low thermal stability. Alternatively, high‐voltage operation of low‐Ni may be one attractive ways provide various options designing advanced LIBs. Here, structural, electrochemical, and properties LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523) 0.80 0.15 Al 0.05 (NCA) are investigated by setting up same initial discharge...
Abstract The anionic redox chemistries of layered cathode materials have been in focus recently due to an intriguing phenomenon that cannot be described by the number electrons transition metal ions. However, even though several studies investigated chemistry terms charge compensation, relationship between origin structural behavior and remains poorly understood. In addition, a simultaneous process ions could occur through d bands interaction. Here, it is demonstrated associated with...
Bipolar disorder (BD) is a heritable mental illness with complex etiology. While the largest published genome-wide association study identified 64 BD risk loci, causal SNPs and genes within these loci remain unknown. We applied suite of statistical functional fine-mapping methods to prioritized 17 likely for BD. mapped genes, investigated their consequences by integrating variant annotations, brain cell-type epigenomic quantitative trait results from rare exome sequencing in Convergent lines...
Korea Institute of Energy Research (KIER) has been developing an indoor CO2 capture technology using dry sorbents since 2021 to improve air quality and reduce Heating, Ventilation Air Conditioning (HVAC) costs in various commercial buildings. Buildings account for approximately 40% the world's carbon emissions, with heating cooling being primary contributors greenhouse gas emissions as they largest portion building energy consumption. By integrating unit Handling Unit (AHU), this can...
All-solid-state lithium batteries have been developed to secure safety by substituting a flammable liquid electrolyte with non-flammable solid electrolyte. However, owing the nature of solids, interfacial issues between cathode materials and electrolytes, including chemical incompatibility, electrochemo-mechanical behavior, physical contact, pose significant challenges for commercialization. Herein, critical factors understanding performance all-solid-state in terms interfaces non-zero...
The structural modification of N-aryl indazolols as tautomers indazolones has been established a hot topic in pharmaceutics and medicinal chemistry. We herein disclose the rhodium(III)-catalyzed 1,4-addition reaction maleimides with indazol-3-ols, which provides succinimide-bearing indazol-3-ol scaffolds complete regioselectivity good functional group tolerance. Notably, versatility this protocol is demonstrated by use drug-molecule-linked fluorescence-probe-linked maleimides.
Understanding thermal behaviors of energy storage materials according to the charged states is essential uncover key factors for improving stability. Herein, we trace crystallographic changes Ni-based layered during an increase in external temperature three different states-of-charges. The most remarkable aspect that onset formation disordered spinel structure dominantly influenced by intermediate tetrahedron size, space through which cations pass. However, completion determined Li contents...
We successfully synthesized monodisperse chromium nanoparticles from the thermolysis of a Fischer carbene complex.
Abstract In thin‐film device fabrication, particularly using a solution process, self‐patterning is effective in reducing the fabrication steps by eliminating conventional photolithography process. Here, solution‐free ultraviolet (UV)‐based direct surface modification introduced for of solution‐processed oxide semiconductors. The carried out selectively irradiating UV light on SiO 2 film, creating regions with different energies. This energy difference induces wetting behaviors spin‐coated...