Is It Possible to Prepare a “Super” Anion-Exchange Membrane by a Polypyrrole-Based Modification?

Kozmai, Anton; Porozhnyy, M. V.; Ruleva, Valentina; Gorobchenko, Andrey; Pismenskaya, Natalia; Nikonenko, Victor

doi:10.3390/membranes13010103

Cited by 9 publications

(4 citation statements)

References 70 publications

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“…Recently, a discussion is interesting about making a "super" ion exchange membrane with superior selectivity properties (i.e., 100% selective membrane at highest degree of conductivity) (Kozmai et al 2023). Some desired properties and the need for stabilization of membrane polymers were presented…”

Section: Challenges In Membrane Fabricationmentioning

confidence: 99%

Grand Challenges in Salinity Gradient Energy Generation

Güler

Kabay

2023

JRR

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IntroductionThe high consumption of fossil fuels and related issues concerning climate change have encouraged the development of renewable energy technologies. While none of these technologies have fully achieved sustainability, energy harvesting from salinity gradients is a promising approach, utilizing the natural salinity differences between seawater and river water to generate power yearround. Across the world, it has been estimated that the salinity gradient power (SGP) in estuaries can reach up to 30 TW, with 2.6 TW of that amount being available for extraction (Wick 1978). Therefore, this clean, zero-emission renewable energy has huge global potential considering the fact that the scale of water use for energy production is growing significantly (Shahzad et al. 2017).www.resrecov.com HIGHLIGHTS ➢ The main challenges of reverse electrodialysis discussed.➢ New advancements rise to new challenges.

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Section: Challenges In Membrane Fabricationmentioning

confidence: 99%

Grand Challenges in Salinity Gradient Energy Generation

Güler

Kabay

2023

JRR

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“…PEMWEs have recently been replaced by promising anion exchange membrane-based (AEM)-based AEMWEs [ 8 , 17 , 18 ]. Because the oxygen evolution reaction (OER) occurs under alkaline conditions in AEMWEs, non-platinum metal catalysts, such as Ni- and Co-based catalysts, may be used in place of PEMWEs as oxygen evolution reaction (OER) catalysts because they are less expensive.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Effect of Triazole on Crosslinked PPO–SEBS-Based Anion Exchange Membranes for Water Electrolysis

Choi

Min

Mo³

et al. 2023

Polymers

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For anion exchange membrane water electrolysis (AEMWE), two types of anion exchange membranes (AEMs) containing crosslinked poly(phenylene oxide) (PPO) and poly(styrene ethylene butylene styrene) (SEBS) were prepared with and without triazole. The impact of triazole was carefully examined. In this work, the PPO was crosslinked with the non-aryl ether-type SEBS to take advantage of its enhanced chemical stability and phase separation under alkaline conditions. Compared to their triazole-free counterpart, the crosslinked membranes made with triazole had better hydroxide-ion conductivity because of the increased phase separation, which was confirmed by X-ray diffraction (XRD) and atomic force microscopy (AFM). Moreover, they displayed improved mechanical and alkaline stability. Under water electrolysis (WE) conditions, a triazole-containing crosslinked PPO–SEBS membrane electrode assembly (MEA) was created using IrO2 as the anode and a Pt/C catalyst as the cathode. This MEA displayed a current density of 0.7 A/cm2 at 1.8 V, which was higher than that of the MEA created with the triazole-free counterpart. Our study indicated that the crosslinked PPO–SEBS membrane containing triazoles had improved chemo-physical and electrical capabilities for WE because of the strong hydrogen bonding between triazole and water/OH−.

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“…It was shown in [ 18 ] that, in addition to steric hindrances, the transfer of phosphates in AEMs are affected by the ion-exchange capacity and the composition of fixed groups (strongly basic, weakly basic), as well as the degree of crosslinking of the polymer matrix. In spite of the wide variety of commercial AEMs, their characteristics—in particular their electrical conductivity and counterion permselectivity—are unsatisfactory for some applications, such as electrolyte solution concentration [ 19 ]. Poly(alkyl-biphenyl pyridinium)-based AEMs with alkyl side chains were synthesized for permselective anion separation [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Anion-Exchange Membrane “Polikon A” Based on Polyester Fiber Fabric (Functionalized by Low-Temperature High-Frequency Plasma) with Oxidized Metal Nanoparticles

Terin,

Kardash,

Ainetdinov

et al. 2023

Membranes

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An experimental laboratory set of samples of composite heterogeneous anion-exchange membranes was obtained by us for the development of our original method of polycondensation filling. Anion-exchange membranes were prepared on plasma-treated and non-plasma-treated polyester fiber fabrics. The fabric was treated with low-temperature argon plasma at a power of 400 W for 10 min at a pressure of 5 × 10−5 mbar. On the surface and bulk of the polyester fiber, a polyfunctional anionite of mixed basicity was synthesized and formed. The anion-exchange membrane contained secondary and tertiary amino groups and quaternary ammonium groups, which were obtained from polyethylene polyamines and epichlorohydrins. At the stage of the chemical synthesis of the anion matrix, oxidized nanoparticles (~1.5 wt.%) of silicon, nickel, and iron were added to the monomerization composition. The use of ion-plasma processing of fibers in combination with the introduction of oxidized nanoparticles at the synthesis stage makes it possible to influence the speed and depth of the synthesis and curing processes; this changes the formation of the surface morphology and the internal structure of the ion-exchange polymer matrix, as well as the hydrophobic/hydrophilic balance and—as a result—the different operational characteristics of anion-exchange membranes.

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Is It Possible to Prepare a “Super” Anion-Exchange Membrane by a Polypyrrole-Based Modification?

Cited by 9 publications

References 70 publications

Grand Challenges in Salinity Gradient Energy Generation

Grand Challenges in Salinity Gradient Energy Generation

Understanding the Effect of Triazole on Crosslinked PPO–SEBS-Based Anion Exchange Membranes for Water Electrolysis

Anion-Exchange Membrane “Polikon A” Based on Polyester Fiber Fabric (Functionalized by Low-Temperature High-Frequency Plasma) with Oxidized Metal Nanoparticles

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