A5100698864- Advancements in Solid Oxide Fuel Cells
- Thermal Expansion and Ionic Conductivity
- Electronic and Structural Properties of Oxides
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Chemical Looping and Thermochemical Processes
- biodegradable polymer synthesis and properties
- Perovskite Materials and Applications
- Advanced ceramic materials synthesis
- Advanced Nanomaterials in Catalysis
- Catalysis and Oxidation Reactions
- Photopolymerization techniques and applications
- Carbon dioxide utilization in catalysis
- Dyeing and Modifying Textile Fibers
- Oral microbiology and periodontitis research
- Supramolecular Self-Assembly in Materials
- Advanced Battery Materials and Technologies
- Scientific and Engineering Research Topics
- Flame retardant materials and properties
- Electrocatalysts for Energy Conversion
- Polymer Surface Interaction Studies
- Adsorption, diffusion, and thermodynamic properties of materials
- Magnetic and transport properties of perovskites and related materials
Korea Institute of Science and Technology
2019-2024
Korea University
2020-2024
Sungkyunkwan University
2024
Hanyang University
2019
Seoul Institute
2019
Materials Science & Engineering
2019
Government of the Republic of Korea
2019
Chung-Ang University
2018
A strategy of naturally diffused sintering aid enables the fabrication defect-free bilayer electrolyte in solid oxide cells.
Proton-conducting oxides provide opportunities to boost the electrochemical characteristics of various energy conversion devices owing their high ionic conductivity. While these alone require high-temperature sintering above 1600 °C gain full density, surprisingly, thin membrane on Ni-based electrodes can be readily densified even below 1400 °C. However, underlying mechanism is still unclear despite widespread use, thereby hindering reliable fabrication devices. Here we reveal by which an...
Abstract The proton‐conducting oxides, widely employed as electrolytes in ceramic electrochemical cells, exhibit remarkable proton conductivity that facilitates efficient energy conversion processes. However, their inherent refractory nature poses a challenge producing chemically stoichiometric and physically dense within devices. Here novel approach is presented, dual‐phase reaction sintering, which can overcome the low sintering ability of representative BaCeO 3‐δ ‒BaZrO conducting oxides....
The facilitated rearrangement of electrolyte particles<italic>via</italic>roll calendering owing to shearing effects enhances sinterability and electrochemical performance solid oxide fuel cells (SOFCs).
Proton conducting oxides, commonly used as electrolytes in ceramic electrochemical cells, boast remarkable proton conductivity, facilitating efficient energy conversion. However, their refractory nature presents challenges achieving the ideal electrolyte structure and properties. Our novel approach utilizes reaction sintering to effectively lower electrolyte's temperature, resulting stable excellent electrolytic This method transforms a two-phase mixture (comprising fast slow-sintering...
Most candidate proton conducting electrolytes are multi-elements perovskite consisting of barium in A site, thus substantially have challenges associated with high volatility during high-temperature sintering process. Here, we describe a simple strategy to fabricate protonic ceramic cells (PCCs) highly conductive electrolyte by minimizing volatilization through low-temperature (1100 o C) calcination The PCC is fabricated using calcined powder at which the minimum temperature remove carbonate...
Among various eco-friendly energy conversion technologies, solid oxide cells (SOCs) exhibit superior efficiency and performance owing to the kinetic thermodynamic advantages. Recently, protonic ceramic (PCCs) have begun attract attention with expectation that operating temperature of SOCs can be lowered around 500 o C, thereby achieving better durability maintaining higher efficiency. However, promising proton conducting electrolytes in PCCs are mostly Ba-containing perovskites exhibiting...