Constructing Proton‐conducting Channels within Sulfonated(Poly Arylene Ether Ketone) Using Sulfonated Graphene Oxide: A Nano‐Hybrid Membrane for Proton Exchange Membrane Fuel Cells

Bulletin of the Korean Chemical Society

Mohanraj Vinothkannan¹  Hye Ri Jang² 

[1] Department of Bioenvironmental Chemistry and R&D Center for CANUTECH Business Incubation Center, Chonbuk National University Jeonju 54896 Republic of Korea;Graduate School, Department of Energy Storage/Conversion Engineering Hydrogen and Fuel Cell Research Center, Chonbuk National University Jeonju 54896 Republic of Korea

关键词: SPAEK;    SGO;    Nano‐;    hybrid membrane;    Hydrogen bond;    Proton conductivity;   

DOI  :  10.1002/bkcs.11459

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Nano‐hybrid membranes made up using sulfonated (poly‐arylene ether ketone) (SPAEK) and sulfonated graphene oxide (SGO) with various weight ratio i.e., 0.5, 1 and/or 1.5 wt % were fabricated with a traditional solvent casting approach and their appropriateness for the potential application of proton exchange membrane fuel cells (PEMFCs) was probed. Structural characteristics of membranes were substantiated by 1H NMR, FT‐IR, and XRD. The composite membranes revealed the outstanding thermal property with a primary weight drop at temperature of 200 °C, as proved by TGA analysis. TM‐AFM images of composite membrane revealed the phase separated morphology of hydrophobic and hydrophilic regions, which afford the wide pathways for swift and easy conduction of protons. Additionally, integration of SGO dramatically raises the water absorption and consequently proton conductivity, whereas it decreases activation energy needed to transfer the protons via membrane. Proton conductivity value of 124 mS/cm was acquired using 1.5 wt % SGO/SPAEK composite membrane with a higher volume of water absorption i.e., 19%.

【 授权许可】

Unknown