A5016954455- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Membrane-based Ion Separation Techniques
- Healthcare and Venom Research
- Acupuncture Treatment Research Studies
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Microgrid Control and Optimization
- Traditional Chinese Medicine Studies
- Pain Mechanisms and Treatments
Incheon National University
2020-2022
Kyung Hee University Hospital at Gangdong
2021
We report semi-interpenetrating polymer network (semi-IPN) membranes prepared easily from a cross-linked using poly(acrylic acid) (PAA) and poly(vinyl alcohol) (PVA) with interpenetrated Nafion for both proton-exchange membrane fuel cell (PEMFC) water electrolyzer (PEMWE) applications. Thermal esterification between PAA PVA induced three-dimensional cross-linking to improve mechanical toughness reduce hydrogen crossover, while the hydrophilic nature of PAA–PVA-based matrix still enhanced...
We prepared Nafion composite membranes by impregnating Nafion-212 with polydopamine, poly(sulfonated dopamine), and poly(dopamine-co-sulfonated dopamine) using the swelling–filling method to generate nanopores in framework that were filled these polymers. Compared pristine membrane, showed improved thermal mechanical stabilities due strong interactions between catecholamine of polydopamine derivatives matrix. For membrane (N-PSDA), further induced sulfonic acid side chain, resulting enhanced...
Nafion, as a perfluorosulfonic acid (PFSA)-based polymer, is key material that contributes to the commercialization of proton exchange membrane fuel cells (PEMFCs). The high dependence on relative humidity (RH) Nafion or other PFSA membranes for conduction, together with its decreased mechanical and dimensional stability (H2) crossover at cell operating temperatures (80 °C above), however, remain issues have yet be solved. In current work, thin sulfonated poly(arylene ether sulfone)...
In the current work, thin sulfonated poly(arylene ether sulfone) (sPES)-coated Nafion membranes (The sPES-c-Nafions) are developed, for first time, by simply spin-coating sPES solution onto a membrane, and results compared with sPES-blended counterparts. The sPES-c1-Nafion demonstrates very high proton conductivity of 223.3 mS cm - 1 (80 °C) low hydrogen permeability, 41% reduction to that Nafion-212, together improved mechanical dimensional stabilities Nafion-212. This newly developed...