Highly permselective tadpole-type ionic anion exchange membranes for electrodialysis desalination

SEBS-Based Anion Exchange Membrane Grafted with N-Spirocyclic Quaternary Ammonium Cations for Fuel Cells

“…In addition, there is a need to balance the OH – conductivity and alkali stability in AEMs. The well-constructed microphase separation structure of AEMs could not only widen the ion transport channels to improve the ionic conductivity but also improve the solvation of OH – to delay the degradation of cationic groups. ,,− Therefore, in the field of AEMs, the construction of a suitable microphase separation morphology to form effective ion transport channels has always been a hot spot in AEM research. ,− By adjusting the position of cations within the polymer backbone, the side-chain-type anion exchange membranes with an alkyl spacer chain exhibit an excellent performance. In order to increase the ion conductivity and chemical stability, Li’s group proposed a copolymerization strategy to synthesize PITP-CnQx, in which the hydrophobic alkyl side chain was grafted into the polymer backbone .…”

Dual-Side-Chain-Grafted Poly(phenylene oxide) Anion Exchange Membranes for Fuel-Cell and Electrodialysis Applications

“…(a) Fuel-cell peak power density of PPO-based AEMs in this work in comparison with that reported in the literature; ,,,,,− (b) current efficiency of the electrodialysis in this work compared with that reported in the literature. ,,− …”

“…After seven runs of desalination, the current efficiency could still be maintained at 91.82% (the η retention after various electrodialysis runs is shown in Figure d; the conductivity of the NaCl solution in the dilute cell after various electrodialysis runs is shown in Figure S17). The desalination durability was rarely reported in the literature, and our η retention was at a similar level compared with the result reported by Li et al Compared with other reported AEMs for desalination, ,,− the current efficiency of the 3QA16C16-3O16 membrane is at a higher level (as shown in Figure b).…”

Redox flow desalination based on the temperature difference as a driving force

“…[7,8] However, conventional electrodialysis desalination technology consumes much electrical energy. In order to reduce the energy consumption, many methods have been explored, such as the synthesis of less resistance and highly selective ion exchange membrane [9,10] and the investigation of membrane-free [11] or low-voltage electrode material [12][13][14][15] and the choice of redox electrolyte [16,17]. In particular, the electrodialysis desalination system using a redox mediator has received growing attention as an emerging desalination technology.…”