Li Xiang, Ye Tengling, Meng Xuan, He Dongqing, Li Lu, Song Kai, Jiang Jinhai, Sun Chuanyu
Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China.
Polymers (Basel). 2024 Oct 8;16(19):2840. doi: 10.3390/polym16192840.
This review discusses the progress of research on sulfonated poly(ether ether ketone) (SPEEK) and its composite membranes in proton exchange membrane fuel cells (PEMFCs). SPEEK is a promising material for replacing traditional perfluorosulfonic acid membranes due to its excellent thermal stability, mechanical property, and tunable proton conductivity. By adjusting the degree of sulfonation (DS) of SPEEK, the hydrophilicity and proton conductivity of the membrane can be controlled, while also balancing its mechanical, thermal, and chemical stability. Researchers have developed various composite membranes by combining SPEEK with a range of organic and inorganic materials, such as polybenzimidazole (PBI), fluoropolymers, and silica, to enhance the mechanical, chemical, and thermal stability of the membranes, while reducing fuel permeability and improving the overall performance of the fuel cell. Despite the significant potential of SPEEK and its composite membranes in PEMFCs, there are still challenges and room for improvement, including proton conductivity, chemical stability, cost-effectiveness, and environmental impact assessments.
本综述讨论了磺化聚醚醚酮（SPEEK）及其复合膜在质子交换膜燃料电池（PEMFC）中的研究进展。由于具有出色的热稳定性、机械性能和可调的质子传导率，SPEEK是一种有望替代传统全氟磺酸膜的材料。通过调节SPEEK的磺化度（DS），可以控制膜的亲水性和质子传导率，同时平衡其机械、热和化学稳定性。研究人员通过将SPEEK与一系列有机和无机材料（如聚苯并咪唑（PBI）、含氟聚合物和二氧化硅）相结合，开发出了各种复合膜，以提高膜的机械、化学和热稳定性，同时降低燃料渗透性并改善燃料电池的整体性能。尽管SPEEK及其复合膜在PEMFC中具有巨大潜力，但仍存在挑战和改进空间，包括质子传导率、化学稳定性、成本效益和环境影响评估。
