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Sulfonated poly(ether ether ketone)/s–TiO2 composite membrane for a vanadium redox flow battery
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-12-20 , DOI: 10.1002/app.48830 Gang Wang 1 , Fei Wang 1 , Anfeng Li 1 , Miaomiao Zhang 1 , Jie Zhang 1 , Jinwei Chen 1 , Ruilin Wang 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-12-20 , DOI: 10.1002/app.48830 Gang Wang 1 , Fei Wang 1 , Anfeng Li 1 , Miaomiao Zhang 1 , Jie Zhang 1 , Jinwei Chen 1 , Ruilin Wang 1
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The SPEEK/s‐TiO2 composite membrane was prepared by blending sulfonated poly(ether ether ketone) (SPEEK) and sulfonated titanium dioxide (s‐TiO2) nanoparticles. The important physiochemical parameters such as proton conductivity, water uptake, swelling degree and ion exchange capacity of the composite membrane were measured. The thermal stability and chemical stability were also tested. It was observed that the SPEEK/s‐TiO2 composite membrane exhibited the best selectivity (7.13 × 104 S·min·cm−3) accompanying high proton conductivity (0.061 S·cm−1) and low tetravalent vanadium ion (VO2+) permeability (8.55 × 10−7 cm2·min−1) compared with Nafion117, SPEEK and SPEEK/TiO2 membranes. The battery performance with these membranes was characterized by charge–discharge cycling tests and it was found that the SPEEK/s‐TiO2 composite membrane showed the highest energy efficiency (EE) up to 82.3%, indicating the SPEEK/s‐TiO2 composite membrane is a candidate for vanadium redox flow battery (VRFB) application. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48830.
中文翻译：
钒氧化还原液流电池用磺化聚醚醚酮/ s-TiO2复合膜
SPEEK / s-TiO 2复合膜是通过将磺化聚醚醚酮（SPEEK）和磺化二氧化钛（s-TiO 2）纳米颗粒混合而制备的。测量了复合膜的重要理化参数，如质子传导率，吸水率，溶胀度和离子交换能力。还测试了热稳定性和化学稳定性。观察到SPEEK / s-TiO 2复合膜表现出最佳的选择性（7.13×10 4 S·min·cm -3），同时具有高质子传导率（0.061 S·cm -1）和低四价钒离子（VO 2） +）渗透性（8.55×10 -7 cm 2·min -1）与Nafion117，SPEEK和SPEEK / TiO 2膜相比。与这些膜的电池性能，其特征在于，充放电循环试验，并且发现，该磺化聚醚醚酮/ S-的TiO 2复合膜显示出最高的能量效率（EE）高达82.3％，指示SPEEK / S-的TiO 2复合物膜是钒氧化还原液流电池（VRFB）应用的候选材料。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48830。
更新日期：2020-03-27
中文翻译：
钒氧化还原液流电池用磺化聚醚醚酮/ s-TiO2复合膜
SPEEK / s-TiO 2复合膜是通过将磺化聚醚醚酮（SPEEK）和磺化二氧化钛（s-TiO 2）纳米颗粒混合而制备的。测量了复合膜的重要理化参数，如质子传导率，吸水率，溶胀度和离子交换能力。还测试了热稳定性和化学稳定性。观察到SPEEK / s-TiO 2复合膜表现出最佳的选择性（7.13×10 4 S·min·cm -3），同时具有高质子传导率（0.061 S·cm -1）和低四价钒离子（VO 2） +）渗透性（8.55×10 -7 cm 2·min -1）与Nafion117，SPEEK和SPEEK / TiO 2膜相比。与这些膜的电池性能，其特征在于，充放电循环试验，并且发现，该磺化聚醚醚酮/ S-的TiO 2复合膜显示出最高的能量效率（EE）高达82.3％，指示SPEEK / S-的TiO 2复合物膜是钒氧化还原液流电池（VRFB）应用的候选材料。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48830。
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