Effect of graphene oxide (GO) on Poly(vinylidene fluoride-hexafluoropropylene) (PVDF- HFP) polymer electrolyte membrane
Effect of graphene oxide (GO) on Poly(vinylidene fluoride-hexafluoropropylene) (PVDF- HFP) polymer electrolyte membrane
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DOI：
10.1016/j.polymer.2018.03.052
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发表时间：
2018-04-25
期刊：
影响因子：
4.6
通讯作者：
Hamid, N. A.
中科院分区：
文献类型：
--
作者：
Ahmad, A. L.;Farooqui, U. R.;Hamid, N. A.
聚偏二氟乙烯-六氟丙烯共聚物（PVDF-HFP）因其出色的耐化学性、较高的机械和热稳定性以及较低的成本而被用作聚合物电解质膜的优异主体聚合物。然而，通过使用其他聚合物、纳米材料、添加剂和填料进行进一步改性对于增强主体聚合物的性能非常有意义。在无机填料中，氧化石墨烯（GO）因其较高的表面积、机械强度、热稳定性等性能而受到巨大反响。因此，利用呼吸图法成功地将不同量的GO（1 wt%、2.5 wt%和5 wt%）掺入PVDF-HFP中制备复合膜。 FTIR 分析证实 GO 已成功掺入 PVDF-HFP 聚合物基体中，而 XRD、TGA、DSC 和离子电导率测试则显示了 GO 填料对 PVDF-HFP PEM 的功效。掺入 2.5 wt% GO 颗粒后，PEM 的离子电导率提高了近三倍。此外，PVDF-HFP PEM 优异的热稳定性、电解液吸收性和形貌也归功于 GO 的添加。添加GO对PVDF-HFP聚合物电解质膜具有显着影响，并且可以成为各种能源应用中有效的替代隔膜或PEM。 (C) 2018 Elsevier Ltd. 保留所有权利。
Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) has been used as an excellent host polymer for polymer electrolyte membranes because of its outstanding chemical resistance, high mechanical and thermal stability with lower cost. However, further modifications by using other polymers, nano-materials, additives, and fillers are of great interest to enhance the properties of the host polymers. Among inorganic fillers, graphene oxide (GO) has received a tremendous response due to its higher surface area, mechanical strength, thermal stability and other properties. Thus, different amount of GO (1 wt%, 2.5 wt%, and 5 wt%) has successfully been incorporated into PVDF-HFP to prepare composite membrane by using breathe figure method. The FTIR analysis confirms successful incorporation of GO into PVDF-HFP polymer matrix, while XRD, TGA, DSC, and ionic conductivity tests have shown the efficacy of GO fillers on PVDF-HFP PEMs. The ionic conductivity of PEM has improved by almost three times after incorporation of 2.5 wt% GO particles. Moreover, the excellent thermal stability, electrolyte uptake and morphology of PVDF-HFP PEM are also attributed to GO addition. The GO addition has shown significant influence on PVDF-HFP polymer electrolyte membrane and can be an effective alternate separator or PEM in various energy applications. (C) 2018 Elsevier Ltd. All rights reserved.