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Proton exchange composite membranes comprising SiO2, sulfonated SiO2, and metal–organic frameworks loaded in SPEEK polymer for fuel cell applications
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-02-02 , DOI: 10.1002/app.50530 Sanjay Bisht 1 , Sasikumar Balaguru 1 , Sathish Kumar Ramachandran 1 , Arthanareeswaran Gangasalam 1 , Jihyang Kweon 2
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-02-02 , DOI: 10.1002/app.50530 Sanjay Bisht 1 , Sasikumar Balaguru 1 , Sathish Kumar Ramachandran 1 , Arthanareeswaran Gangasalam 1 , Jihyang Kweon 2
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Proton exchange membrane fuel cell (PEMFC) is a promising technology that offers a clean and efficient renewable energy source. The hybrid SiO2, sulfonated SiO2 (SSiO2), and metal–organic framework‐5 (MOF‐5) incorporated sulfonated poly (ether ether ketone) (SPEEK) ternary composite membranes are fabricated using dry phase inversion technique for PEMFC. The membrane performance is evaluated in terms of water uptake, ion exchange capacity, methanol permeability, and proton conductivity (PC) measurements. The morphological study of fabricated membranes was carried out using scanning electron microscopy and atomic force microscopy analysis. The mechanical stability is strengthened up to 30–40%, and the PC gets enhanced with the incorporation of MOF‐5, achieving simultaneous improvement in proton conduction and membrane stability. The PC of the ternary SPEEK/SSiO2/MOF‐5 membrane is 3.69 × 10−3 S cm−1, 32% more than the neat membrane. A significant increase in selectivity of 23% is observed by incorporating SSiO2 and MOF‐5 fillers when compared with the neat membrane. The synergistic effect of MOF‐5 and SSiO2 in the ternary membrane has significantly improved water retention and proton conductivity. The functional SO3H groups of SiO2 and MOF‐5 bonded via acid–base electrostatic interactions with the SPEEK; enhances proton conduction accompanied by suppressing the methanol penetration through membranes.
中文翻译：
质子交换复合膜，包含SiO2，磺化的SiO2和装在SPEEK聚合物中的金属有机骨架，用于燃料电池应用
质子交换膜燃料电池（PEMFC）是一种有前途的技术，可提供清洁高效的可再生能源。所述混合的SiO 2，磺化的SiO 2（S 的SiO 2），并采用干相转化技术对PEMFC制备了金属有机骨架5（MOF-5）磺化聚醚醚酮（SPEEK）三元复合膜。根据吸水率，离子交换容量，甲醇渗透性和质子传导率（PC）测量评估膜性能。使用扫描电子显微镜和原子力显微镜分析对制成的膜进行了形态学研究。机械稳定性提高了30％到40％，并且通过加入MOF-5增强了PC的性能，同时提高了质子传导性和膜稳定性。的PC三元SPEEK / S 的SiO 2 / MOF-5膜是3.69×10 -3小号厘米-1，比整齐的膜多32％。在23％的选择性阿显著增加是通过将S测定值的SiO 2时与净膜相比和MOF-5填料。MOF-5和S的协同效应的SiO 2在三元膜具有改善显著保水性和质子传导性。功能 SO 3个ħ的SiO的组2和MOF-5通过与磺化聚醚醚酮酸碱静电相互作用结合; 增强质子传导，同时抑制甲醇透过膜的渗透。
更新日期：2021-03-02
中文翻译：
质子交换复合膜，包含SiO2，磺化的SiO2和装在SPEEK聚合物中的金属有机骨架，用于燃料电池应用
质子交换膜燃料电池（PEMFC）是一种有前途的技术，可提供清洁高效的可再生能源。所述混合的SiO 2，磺化的SiO 2（S 的SiO 2），并采用干相转化技术对PEMFC制备了金属有机骨架5（MOF-5）磺化聚醚醚酮（SPEEK）三元复合膜。根据吸水率，离子交换容量，甲醇渗透性和质子传导率（PC）测量评估膜性能。使用扫描电子显微镜和原子力显微镜分析对制成的膜进行了形态学研究。机械稳定性提高了30％到40％，并且通过加入MOF-5增强了PC的性能，同时提高了质子传导性和膜稳定性。的PC三元SPEEK / S 的SiO 2 / MOF-5膜是3.69×10 -3小号厘米-1，比整齐的膜多32％。在23％的选择性阿显著增加是通过将S测定值的SiO 2时与净膜相比和MOF-5填料。MOF-5和S的协同效应的SiO 2在三元膜具有改善显著保水性和质子传导性。功能 SO 3个ħ的SiO的组2和MOF-5通过与磺化聚醚醚酮酸碱静电相互作用结合; 增强质子传导，同时抑制甲醇透过膜的渗透。
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