POS6-0518
Effect of GO-QPEI Incorporation on the Properties of Quaternized Naphthalene-based Poly(arylene ether ketone) Anion Exchange Membranes
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Ji Young Chu (Jeonbuk National University)
Co-Author(s)
Abstract
Anion exchange membranes (AEMs) are critical components for next-generation anion exchange membrane fuel cells (AEMFCs), requiring a synergistic combination of high ionic conductivity, excellent chemical stability, and robust mechanical properties. In this study, we report the development of novel naphthalene-based quaternized poly(arylene ether ketone)s (Q-PAEKs) designed to enhance both structural rigidity and hydrophilicity. The incorporation of naphthalene units and subsequent quaternization provides a pathway for efficient anion transport and improved thermal stability.
To further optimize the membrane performance, we fabricated nanocomposite membranes by incorporating varying contents of GO-QPEI (0.4, 0.8, 1.2, and 1.6 wt%) into the quaternized polymer matrix. The incorporation of GO-QPEI aims to create a well-dispersed nanostructured network that facilitates anion conduction pathways while reinforcing the polymer matrix. The physicochemical properties of the resulting membranes, including ion exchange capacity (IEC), water uptake (WU), and mechanical strength, were systematically investigated.
Preliminary characterization indicates that the naphthalene-based quaternized polymer matrix, combined with the controlled addition of GO-QPEI, significantly influences the free volume and hydrophilic/hydrophobic balance of the membranes. It is expected that the optimized GO-QPEI concentration will provide a superior balance between high anion conductivity and dimensional stability, overcoming the common trade-offs in AEM fabrication. This work provides a strategic approach to designing high-performance polymer nanocomposites for advanced electrochemical energy conversion applications.
To further optimize the membrane performance, we fabricated nanocomposite membranes by incorporating varying contents of GO-QPEI (0.4, 0.8, 1.2, and 1.6 wt%) into the quaternized polymer matrix. The incorporation of GO-QPEI aims to create a well-dispersed nanostructured network that facilitates anion conduction pathways while reinforcing the polymer matrix. The physicochemical properties of the resulting membranes, including ion exchange capacity (IEC), water uptake (WU), and mechanical strength, were systematically investigated.
Preliminary characterization indicates that the naphthalene-based quaternized polymer matrix, combined with the controlled addition of GO-QPEI, significantly influences the free volume and hydrophilic/hydrophobic balance of the membranes. It is expected that the optimized GO-QPEI concentration will provide a superior balance between high anion conductivity and dimensional stability, overcoming the common trade-offs in AEM fabrication. This work provides a strategic approach to designing high-performance polymer nanocomposites for advanced electrochemical energy conversion applications.
