ArticleMaterials (Basel, Switzerland)2018
Preparation of Nano-SiO₂/Al₂O₃/ZnO-Blended PVDF Cation-Exchange Membranes with Improved Membrane Permselectivity and Oxidation Stability.
Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Preparation and Electrochemical Characterization of Organic-Inorganic Hybrid Poly(Vinylidene Fluoride)-SiOMaterials (Basel, Switzerland) · 2019Article
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6 authors.
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Abstract
Ion exchange membranes are used in practically every industry; however, most of them have defects such as low permeability and poor oxidation resistance. In this paper, cation-exchange membranes were prepared with poly (vinylidene fluoride) (PVDF) blended with nano-SiO₂, nano-Al₂O₃ and nano-ZnO. Sulfonic acid groups were injected into the membrane prepared by styrene grafting and sulfonation. The methods used for characterizing the prepared membranes were Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and electrochemical measurements. Membrane performance, such as the ion exchange capacity (IEC), water uptake (WU), transport number, membrane permselectivity, membrane resistance, functional groups, and morphology were also evaluated. The hydrophilia, IEC, and permselectivity of cation-exchange membranes depended on the nanoparticle content of the membrane matrix. High transport property values were obtained, which increased with increasing nano-SiO₂/Al₂O₃/ZnO weight fractions. Finally, the cation-exchange membranes prepared with 1.5% nano-SiO₂, 2.0% nano-Al₂O₃ or 2.0% nano-ZnO all exhibited excellent membrane properties, including membrane permselectivity (PVDF/2% ZnO-g-PSSA membranes, 94.9%), IEC (PVDF/2% Al₂O₃-g-PSSA membranes, 2.735 mmol·g
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