Application of Crosslinked Polybenzimidazole-Poly(Vinyl Benzyl Chloride) Anion Exchange Membranes in Direct Ethanol Fuel Cells

Herranz, D.; Coppola, R.E.; Cid, Ricardo Escudero; Ochoa-Romero, Kerly; D’Accorso, Norma B.; Pérez-Flores, Juan Carlos; Canales‐Vázquez, Jesús; Palácio, Carlos; Abuin, Graciela C.; Ocón, P.

doi:10.3390/membranes10110349

Cited by 14 publications

(5 citation statements)

References 34 publications

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“…Because of their high specific capacity, high energy density, stable discharge voltage, and no pollution, Zn–Air batteries have recently received enormous attention as promising green energy devices, especially as a reliable power source for portable electronics [ 1 , 2 , 3 , 4 , 5 ]. Zn–Air batteries generally comprise Zn metal anodes, metal oxide cathodes, a potassium hydroxide (KOH)-based alkaline electrolyte solution, and separator membranes.…”

Section: Introductionmentioning

confidence: 99%

Composite Polymer Anion Exchange Membranes with Sandwich Structure and Improved Performance for Zn–Air Battery

et al. 2021

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In this study, we fabricated a composite polymer anion exchange membrane (AEM) with a sandwich structure. This prepared AEM demonstrated high ionic conductivity (0.25 Scm−1), excellent alkali resistance (8 M KOH), and good mechanical properties (tensile strength of 0.455 MPa and elongation at break of 82.13%). Here, degrease cotton (DC) treated with LiOH/urea aqueous solution was used and immersed into a coagulation bath to form a film. This film was immersed in acrylic acid (AA) monomers, and in-suit polymerization was carried out in the presence of KOH and an initiator. Finally, a composite polymer membrane with sandwich structure was achieved, in which the upper and bottom layers were mainly composed of polymerized AA (PAA) while the central layer was mainly composed of DC derived film. The central layer acted as a skeleton to improve the mechanical properties and alkali resistance. The top and bottom layers (PAA-rich layers) acted as OH- ion transport carriers, making basic cations migrate along the main chain of PAA. This newly developed composite membrane showed increased tensile strength and an elongation at break of 2.7 and 1.5 times, respectively, when compared to a control PAA/KOH AEM film. Furthermore, an electrochemical stability window of 2.0 V was measured via the cyclic voltammetry curve test, showing a wide electrochemical window and promising application in Zn–Air batteries.

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Section: Introductionmentioning

confidence: 99%

Composite Polymer Anion Exchange Membranes with Sandwich Structure and Improved Performance for Zn–Air Battery

et al. 2021

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“…1d). In the SS 13 C NMR spectrum, the carbon atoms belonging to the -CH 2 -Cl group of PFPE-IEX shift from ~ 40 (peak c) to 50 ppm (peak e) after quaternization 20,21 . Additionally, the newly formed peak f at 65 ppm after quaternization is due to the carbon atom from the -N-(CH 3 ) 3 group.…”

Section: Pfpe-iex + Resin Design and Synthesismentioning

confidence: 99%

Turning Waste into Wealth: An Efficient Platform for Capturing, Recycling and Reusing Perfluorinated Compounds

Zhang,

Yang,

Zhu

et al. 2023

Preprint

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Per- and poly-fluoroalkyl substances (PFAS) represent a group of compounds, such as perfluorooctanoic acid (PFOA) and perfluorooctylsulfonic acid (PFOS), that have raised environment and human health concerns. Opportunities exist for improved efficiency and scalable technologies over more broad-spectrum approaches for capture and utilization of these compounds from contaminated sources. In this study, we introduce a new type of reusable polymeric sorbent (perfluoropolyether-containing resin (PFPE-IEX+)) for rapid, efficient, and selective removal of multiple PFAS impurities from various contaminated water sources. The sorbent contains a hydrophobic polystyrenic backbone, with positively charged quaternary ammonium functional group and PFPE segments being crosslinked by divinylbenzene. The PFPE-IEX + resin shows superior PFAS sorption efficiency compared with commercially available sorbents in real PFAS contaminated media. The resin achieves > 98% removal efficiency and > 500 mg/g sorption capacity for all types of examined PFAS, including the short-chain heptafluorobutyric acid (PFBA) and hexafluoropropylene oxide dimer acid (HFPO-DA). We dedicated efforts to achieve efficient PFAS removal without breakthrough and subsequent resin regeneration with ~ 100% PFAS recovery in a proof-of-concept cartridge setup using real PFAS contaminated water sources, including potable water and landfill leachate. The recycled PFAS was then used as electrolyte additives to facilitate the formation of a ZnF2 rich protection layer on the anode surface to improve the cycling stability of aqueous zinc batteries. The outcomes of this study not only offer valuable guidance to the design and preparation of efficient sorbents applicable in cartridge-based PFAS removal from the environment, but also present an important strategy to reuse the recycled PFAS in battery systems to turn an environmental concern to a societal benefit to wealth.

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“…Different types of membranes offer various characteristics and suitability for different applications, leading to the classification of FCs based on their specific membrane technologies. FCs encompass a variety of types, including high-temperature PEM-FCs [24,25], direct methanol FCs [26,27], solid oxide FCs [28,29], alkaline FCs [30,31], microbial FCs [32,33], direct ethanol FCs [34,35], phosphoric acid FCs [36,37], molten carbonate FCs [38], regenerative FCs [39,40], direct alcohol FCs [41,42], enzymatic FCs [43,44], direct ethylene glycol FCs [45], direct carbon FCs [46,47], and more. PEM-FCs are particularly preferred in the automotive sector due to the characteristics of the membrane used in their construction.…”

Section: Principles and Literature Review Of Proton Exchange Membrane...mentioning

confidence: 99%

Boosting Power Density of Proton Exchange Membrane Fuel Cell Using Artificial Intelligence and Optimization Algorithms

Ghoniem,

Wilberforce,

Rezk

et al. 2023

Membranes

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The adoption of Proton Exchange Membrane (PEM) fuel cells (FCs) is of great significance in diverse industries, as they provide high efficiency and environmental advantages, enabling the transition to sustainable and clean energy solutions. This study aims to enhance the output power of PEM-FCs by employing the Adaptive Neuro-Fuzzy Inference System (ANFIS) and modern optimization algorithms. Initially, an ANFIS model is developed based on empirical data to simulate the output power density of the PEM-FC, considering factors such as pressure, relative humidity, and membrane compression. The Salp swarm algorithm (SSA) is subsequently utilized to determine the optimal values of the input control parameters. The three input control parameters of the PEM-FC are treated as decision variables during the optimization process, with the objective to maximize the output power density. During the modeling phase, the training and testing data exhibit root mean square error (RMSE) values of 0.0003 and 24.5, respectively. The coefficient of determination values for training and testing are 1.0 and 0.9598, respectively, indicating the successfulness of the modeling process. The reliability of SSA is further validated by comparing its outcomes with those obtained from particle swarm optimization (PSO), evolutionary optimization (EO), and grey wolf optimizer (GWO). Among these methods, SSA achieves the highest average power density of 716.63 mW/cm2, followed by GWO at 709.95 mW/cm2. The lowest average power density of 695.27 mW/cm2 is obtained using PSO.

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Application of Crosslinked Polybenzimidazole-Poly(Vinyl Benzyl Chloride) Anion Exchange Membranes in Direct Ethanol Fuel Cells

Cited by 14 publications

References 34 publications

Composite Polymer Anion Exchange Membranes with Sandwich Structure and Improved Performance for Zn–Air Battery

Composite Polymer Anion Exchange Membranes with Sandwich Structure and Improved Performance for Zn–Air Battery

Turning Waste into Wealth: An Efficient Platform for Capturing, Recycling and Reusing Perfluorinated Compounds

Boosting Power Density of Proton Exchange Membrane Fuel Cell Using Artificial Intelligence and Optimization Algorithms

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