A5016978421- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Advanced Photocatalysis Techniques
- Extraction and Separation Processes
- Nanoparticles: synthesis and applications
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Fuel Cells and Related Materials
- Semiconductor materials and devices
- Conducting polymers and applications
- Graphene research and applications
- Transition Metal Oxide Nanomaterials
- Photonic and Optical Devices
- Copper-based nanomaterials and applications
- ZnO doping and properties
- Luminescence Properties of Advanced Materials
- MXene and MAX Phase Materials
- Quantum Dots Synthesis And Properties
- Air Quality and Health Impacts
- Polyoxometalates: Synthesis and Applications
- Advanced ceramic materials synthesis
Korea University
2016-2025
Animal and Plant Quarantine Agency
2024-2025
Chonnam National University Hospital
2025
Kyung Hee University
2023
Korea Institute of Science and Technology
2006-2023
Seoul Institute
2014-2021
California Institute of Technology
2015-2021
Government of the Republic of Korea
2017-2020
Seoul National University
2002-2018
Seoul National University Hospital
2018
For mass production of hydrogen fuel by electrochemical water splitting, seawater electrolysis is preferred over freshwater because the abundance in nature. However, electrochemically active anions can cause corrosion electrodes or undesirable side reactions during anodic reaction at anode, thus degrading overall system efficiency. Hence, it imperative to develop highly and stable oxygen evolution (OER) electrocatalysts for efficient electrolysis. In this study, carbon-coated sodium...
The MgF 2 and F-terminated groups effectively infiltrated the ion transport channels within UiO-66, thereby regulating desolvation process facilitating rapid Li + kinetics.
In this work, a simple, high-yield biomineralization process is reported for cobalt oxide nanostructures using Gram-positive bacteria, Bacillus subtilis, as the soft templates. Rod-type prepared at room temperature through an electrostatic interaction between functional surface structures of bacteria and ions in aqueous solution. Additionally, porous Co3O4 hollow rods are formed subsequent heat treatment 300 °C. These have high area exhibited excellent electrochemical performance...
Abstract Using a wet‐chemical method and without any surfactants or templates, various 3D hierarchical superstructures of Cu 2 PO 4 OH were synthesized by simply adjusting the pH. The resulting characterized using X‐ray diffraction (XRD), field‐emission scanning electron microscopy (FESEM), high resolution‐TEM (HRTEM), Fourier transform infrared spectroscopy (FTIR), Raman, UV–Vis spectroscopy. With an increase in pH from 2.5 to 7.0, morphology varied microrods walnut‐shaped microspheres...
Abstract Hollow carbon materials are considered promising sulfur reservoirs for lithium–sulfur batteries owing to their internal void space and porous conductive shell, providing high loading utilization of sulfur. Since the pores in play a critical role infusion sulfur, access electrolyte, passage lithium polysulfides (LPSs), creation tuning hierarchical pore structures is strongly required improve electrochemical properties sulfur/porous composites, but remains major challenge. Herein,...
Abstract Developing low‐cost, highly active, and stable bifunctional electrocatalysts is a challenging issue in electrochemical water electrolysis. Building on 3D architectured through structural compositional engineering an effective strategy to enhance catalytic activities as well stability durability. Herein, architectures of quaternary Co‐Ni‐S‐P compounds coupled with graphene ((Co 1− x Ni )(S y P ) 2 /G) are proposed, which nanosheets self‐assembled form round flat doughnut‐like shapes,...
Template-driven strategy has been widely used to synthesize inorganic nano/micro materials. Here, we a bottom-up controlled synthesis route develop powerful solution-based method of fabricating three-dimensional (3D), hierarchical, porous-Co3O4 superstructures that exhibit the morphology flower-like microspheres (hereafter, RT-Co3O4). The gram-scale RT-Co3O4 was facilely prepared using one-pot with bacterial templating at room temperature. Large-surface-area also noticeable pseudocapacitive...
Abstract Lithium is regarded as an ideal anode for next‐generation Li metal batteries (LMB) it exhibits extraordinarily high theoretical capacity and the lowest electrochemical potential among all candidates. However, safety concerns poor cycling stability of induced by uncontrollable dendrite growth severe side reactions impede its practical application LMB. Although various strategies fabricating anodes have been suggested, developing high‐rate LMB remains a significant challenge. To...
Abstract Aqueous Zn metal batteries (ZMBs) are receiving attention as large‐scale energy storage systems owing to their high theoretical capacity, low toxicity, and the abundance of Zn. However, anodes still undergo undesired dendrite growth intrinsic side reactions, thereby hindering practical application ZMBs. In this study, a multifunctional porous zincophilic carbon host (FPCH) assisted by thin ZnO interphase (ZI) on bare (FPCH‐ZI/Zn) is rationally designed interfacial for stable...
Abstract Polymer electrolyte membrane water electrolysis (PEMWE) is an attractive hydrogen energy production technology that offers various advantages such as compact design, high operating pressure, current densities, and gas purity. However, PEMWE still faces several critical challenges, particularly with respect to the oxygen evolution reaction (OER) at anode. Highly active, corrosion‐resistant electrocatalytic materials are required for acidic OER owing its sluggish kinetics involving...
Abstract Aqueous zinc‐ion batteries (AZIBs) have recently gained significant attention for grid‐scale energy storage applications owing to their high intrinsic density, low cost, and environmental benignity. Nevertheless, uncontrolled Zn dendrite accumulation, H 2 gas generation, inevitable corrosion resulting from intricate water‐induced side‐reactions remain the main hurdles AZIB commercialization. To overcome these problems, it is imperative develop easy‐to‐handle strategies construction...
Perpendicular nanochannel creation of two-dimensional (2D) nanostructures requires highly controlled anisotropic drilling processes the entire structure via void formation. However, chemical approaches for porosity and defects 2D have been challenging due to strong basal plane stability use harsh reactants, tending give randomly corroded structures. In this study, we introduce Lewis acid–base conjugates (LABCs) as molecular drillers with attenuated reactivity which results in well-defined...
This study explores the innovative recycling of neodymium (Nd) permanent magnet scrap to synthesize Fe 3 O 4 , a high‐capacity anode material for secondary batteries, by leveraging oxalate solution produced during recycling. The traditional process recovering from magnets in form oxides produces products with limited economic viability and usability. For first time, we have successfully synthesized as an lithium‐ion (Li‐ion) batteries Nd magnets. We address existing challenge employing novel...
We report on the self-supported, two-dimensional (2D) SnS nanosheets electrode directly grown metallic current collectors via non-catalytic and template-free, vapor transport synthetic route. The self-supported demonstrates good cycling performance superior rate capabilities: a capacity of ∼380 mAh g−1 even at 20C (after charging for 3 min), larger than theoretical carbon-based electrodes currently used in commercial Li ion batteries. origin such an improvement long-term cycle stability...
Germanium (Ge) nanoparticle–multiwalled carbon nanotube (MWCNT) anodes are fabricated through the anchoring of Ge on surface electrophoretically pre-deposited MWCNT networks via a thermal evaporation process. This Ge–MWCNT nanocomposite displays large reversible capacity over 800 mA h g−1 at 1 C even after 200 cycles.