Electrospun fibers were produced using a variety of solvents to investigate the influence of polymer/solvent properties on the fiber surface morphology. Electrospinning is a novel processing techni...

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Micro- and Nanostructured Surface Morphology on Electrospun Polymer Fibers

Performance studies of mixed matrix membranes for gas separation: A review

The formation of microporous polyvinylidene difluoride membranes by phase separation

The need for large scale energy storage has become a priority to integrate renewable energy sources into the electricity grid. Redox flow batteries are considered the best option to store electricity from medium to large scale applications. However, the current high cost of redox flow batteries impedes the wide spread adoption of this technology. The membrane is a critical component of redox flow batteries as it determines the performance as well as the economic viability of the batteries. The membrane acts as a separator to prevent cross-mixing of the positive and negative electrolytes, while still allowing the transport of ions to complete the circuit during the passage of current. An ideal membrane should have high ionic conductivity, low water intake and excellent chemical and thermal stability as well as good ionic exchange capacity. Developing a low cost, chemically stable membrane for redox flow cell batteries has been a major focus for many groups around the world in recent years. This paper reviews the research work on membranes for redox flow batteries, in particular for the all-vanadium redox flow battery which has received the most attention.

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Membranes for Redox Flow Battery Applications

Fabrication and characterization of polyamide thin film nanocomposite (TFN) nanofiltration membrane impregnated with TiO2 nanoparticles

In recent years, separations with synthetic membranes have become increasingly important processes in the chemical industry, in food and wastewater processing, and in medical treatment. Synthetic membranes made from a variety of polymers are used in processes such as microfiltration, ultrafiltration, reverse osmosis, electrodialysis, and gas separations. In this paper, the different membrane structures, their function and application in various separation processes are described. The preparation procedures of the various membrane types are discussed with special emphasis on symmetric and asymmetric membranes obtained by the phase inversion process.

H. Strathmann

Papers

Synthetic Membranes and Their Preparation