A5038046006- Fuel Cells and Related Materials
- Membrane-based Ion Separation Techniques
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Conducting polymers and applications
- Advancements in Battery Materials
- Membrane Separation and Gas Transport
- Supercapacitor Materials and Fabrication
- Chemical Synthesis and Characterization
- Carbon and Quantum Dots Applications
Incheon National University
2020-2024
Government of the Republic of Korea
2020
With such excellent physicochemical and electrochemical properties, the crosslinked PPO-SEBS membrane shows high cell performance durability.
x-PIM-SEBS membranes were developed by chemical crosslinking of PIM with SEBS. The membrane showed good phase separation and ion conductivity through free volume, also high AEMWE performance 1.905 A cm −2 at 2.0 V.
x-Car-SEBS, prepared by crosslinking two spacer-type polymers with flexible ion-conducting groups, were developed for anion exchange membrane water electrolysis. The exhibits excellent ion conductivity, chemical stability, and electrolysis cell performance of 1.25 mA cm −2 at 1.8 V.
Proton exchange membrane water electrolysis (PEMWE) generates oxygen and hydrogen at the anode cathode, respectively, by conducting protons generated to cathode through a proton (PEM). The performance of PEMWE can be improved with faster catalytic reactions each electrode; thus, development PEM excellent ionic conductivity physicochemical stability is essential. Nafion, type perfluoro-sulfonic acid polymer, most widely used material. However, despite its chemical stability, it exhibits high...
The x -PDB- m -F5-SEBS membrane, which is chemically crosslinked betweenPDB and Br-Hex- -F5-SEBS, exhibits excellent phase separation, due to the introduction of a partial fluorine group, high ionic conductivity, together with chemical stability.
For anion exchange membrane water electrolysis (AEMWE), two types of membranes (AEMs) containing crosslinked poly(phenylene oxide) (PPO) and poly(styrene ethylene butylene styrene) (SEBS) were prepared with without triazole. The impact triazole was carefully examined. In this work, the PPO non-aryl ether-type SEBS to take advantage its enhanced chemical stability phase separation under alkaline conditions. Compared their triazole-free counterpart, made had better hydroxide-ion conductivity...
The high ionic conductivity and chemical stability of poly(aryl piperidinium) (PAP) underpin its extensive use in anion exchange membranes (AEMs) for water electrolysis (WE) fuel cell (FC) applications. Nonetheless, the limited elongation PAP-based AEMs negatively impacts performance durability, their ion capacity (IEC), while enhancing performance, often causes excessively uptake diminishes mechanical properties phase separation performance. This study developed high-performance by...
Green hydrogen production technology has drawn much interest due to its high energy density and eco-friendly of hydrogen. In particular, anion exchange membrane water electrolysis (AEMWE) have been at the core recent research because low cost by using a non-precious metal catalyst non-fluorinated ion-conducting polymer electrolyte membranes. Nevertheless, poor durability performance AEMWE, chemical degradation AEMs in alkaline conditions diffusivity OH - , need be addressed for practical use...
The aryl-ether free polymer backbones containing ion-conducting head groups have drawn recent interest as high-performance anion exchange membrane (AEM) materials because of their excellent chemical stability against hydroxide ions. However, a relatively high ion capacity (IEC) is required to ensure conductivity and cell performance. In this study, new AEMs based on crosslinked poly( m -terphenyl N -methyl piperidinium)- poly(styrene- b -ethylene- co -butylene- -styrene), x-PmTP-SEBS, were...