Rahayu Iman, Umma Akmalia Risalatul, Malik Yoga Trianzar, Nasir Muhammad
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jln. Raya Bandung-Sumedang km. 21, Jatinangor, Sumedang, West Java, 45363, Indonesia.
Research Unit for Clean Technology, Indonesian Institute of Sciences (LIPI), Jalan Cisitu Sangkuriang, Bandung, West Java, Indonesia, 40135.
Heliyon. 2020 Jan 8;6(1):e03159. doi: 10.1016/j.heliyon.2020.e03159. eCollection 2020 Jan.
Fuel cell membrane of Nafion is commonly used as the electrolyte material of fuel cell which has good mechanical properties, but the hydrophobicity reduce its proton conductivity. Thus, the other polymer is used for the electrolyte membrane. A polymer modification of sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF--HFP) by attaching sulfonate group and oxide compounds such as sAlO would enhance the proton conductivity. The research is aimed to modify PVDF--HFP via the addition of sAlO or pristine AlO and studying the effect of sulfonated AlO on the conductivity. The research includes AlO particles synthesis, the sulfonation of AlO, the membrane preparation, the sulfonation of membrane, and the characterisation of membrane using FTIR, SEM-EDX, and Four-point Probe Electrical Device Analysis. SEM-EDX analysis explained that the 6% addition of AlO showed denser cross-sectioned membrane rather than the 9% addition of AlO. The highest conductivity achieved can be revealed at the 6% sAlO addition on PVDF--HFP membrane as 2.27 × 10 S cm which is higher than a previous study.
纳滤膜燃料电池通常用作燃料电池的电解质材料，它具有良好的机械性能，但疏水性会降低其质子传导率。因此，其他聚合物被用于电解质膜。通过连接磺酸基团和氧化物化合物（如sAlO）对磺化聚偏氟乙烯-六氟丙烯（PVDF-HFP）进行聚合物改性，可提高质子传导率。该研究旨在通过添加sAlO或原始AlO对PVDF-HFP进行改性，并研究磺化AlO对电导率的影响。该研究包括AlO颗粒合成、AlO磺化、膜制备、膜磺化以及使用傅里叶变换红外光谱（FTIR）、扫描电子显微镜-能谱仪（SEM-EDX）和四点探针电气设备分析对膜进行表征。SEM-EDX分析表明，添加6%的AlO比添加9%的AlO显示出更致密的横截面膜。在PVDF-HFP膜上添加6%的sAlO时，可实现最高电导率，为2.27×10 S cm，高于先前的研究。
