Sulfonated graphene oxide-doped proton conductive membranes based on polymer blends of highly sulfonated poly(ether ether ketone) and sulfonated polybenzimidazole

2018 ◽  
Vol 135 (37) ◽  
pp. 46547 ◽  
Author(s):  
Shuitao Gao ◽  
Xin Chen ◽  
Hulin Xu ◽  
Tianwei Luo ◽  
Amina Ouadah ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polymer Blends ◽  
Conductive Membranes ◽  
Ether Ether Ketone ◽  
Sulfonated Graphene ◽  
Poly Ether Ether Ketone ◽  
Sulfonated Polybenzimidazole ◽  
Ether Ketone ◽  
Sulfonated Poly

Enhanced Performance of Sulfonated Poly(ether ether Ketone) Hybrid Membranes by Introducing Sulfated MOF-808/Graphene Oxide Composites

2021 ◽  
Vol 4 (9) ◽  
pp. 9664-9672
Author(s):  
Yuan Yuan Cai ◽  
Jia Jun Wang ◽  
Zhi Hong Cai ◽  
Qiu Gen Zhang ◽  
Ai Mei Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hybrid Membranes ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Oxide Composites ◽  
Sulfonated Poly

Advanced Sulfonated Poly(Ether Ether Ketone)/Graphene-Oxide/Titanium Dioxide Nanoparticle Composited Membrane with Superior Cyclability for Vanadium Redox Flow Battery

2020 ◽  
Vol 20 (8) ◽  
pp. 4714-4721 ◽  
Author(s):  
Jiaye Ye ◽  
Chun Wu ◽  
Wei Qin ◽  
Fangfang Zhong ◽  
Mei Ding
Keyword(s):  
Graphene Oxide ◽  
Hybrid Membrane ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Vanadium Redox ◽  
Vanadium Ions ◽  
Sulfonated Poly

The purpose of this study was to improve the repulsion ability of sulfonated poly(ether ether ketone) (SPEEK) membrane for the vanadium ions crossover. For this purpose graphene oxide (GO) nanosheet and titanium dioxide (TiO2) nanoparticles were employed into the polymer matrix to prepare SPEEK/GO/TiO2 hybrid membrane via solution-casting method for vanadium redox flow battery (VRFB). The morphology, permeability of vanadium ions and device performance of asprepared membrane were investigated and discussed. It was observed that with the barrier block effect by the filler, the VRFB single cell with the optimized SPEEK/GO/TiO2 hybrid membrane exhibited high coulombic efficiency (~99%), excellent energy efficiency (~85%) and vigorous cyclability (~97.2% capacity retention after 100 cycles). Moreover, the VRFB cell with this blend membrane showed lower vanadium ions permeability than Nafion 212 or pure SPEEK membranes. These results demonstrated that the comprehensive properties of hybrid membrane have been remarkably improved comparing to pristine SPEEK which suggested that the hybrid membrane was applicable for VRFB energy storage system.

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