Synthesis of Sulfonated Poly(Arylene Ether Sulfone)s Containing Aliphatic Moieties for Effective Membrane Electrode Assembly Fabrication by Low-Temperature Decal Transfer Methods

Choi, Jieun; Kyeong, Minkyu; Kim, Min Soo; Lee, Sang-Soo; Seo, Bora; Park, Hyun Seo; Park, Hee-Young; Henkensmeier, Dirk; Lee, So Young; Kim, Hyoung‐Juhn

doi:10.3390/polym13111713

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…This result is significant when applying the decal transfer method and analyzing the resistances within the MEAs. The decal transfer method with HC-PEMs requires a much higher temperature and/or pressure than the PFSA-based PEM due to its high glass-transition temperature (PFSA ∼ 120 °C and HC > 200 °C), − high rigidity, and low compatibility with CL containing a PFSA ionomer. Therefore, performing the decal transfer method at low pressure and temperature by employing enhanced interfacial bonding properties can achieve advantages in the MEA manufacturing process and high-performance PEMFC with low-cost HC-PEMs.…”

Section: Resultsmentioning

confidence: 99%

Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

Choi

Kim

Chae

et al. 2022

ACS Appl. Mater. Interfaces

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Developing a method for fabricating high-efficient and low-cost fuel cells is imperative for commercializing polymer electrolyte membrane (PEM) fuel cells (FCs). This study introduces a mechanical and chemical modification technique using the oxygen plasma irradiation process for hydrocarbon-based (HC) PEM. The oxygen functional groups were introduced on the HC-PEM surface through the plasma process in the controlled area, and microsized structures were formed. The modified membrane was incorporated with plasma-treated electrodes, improving the adhesive force between the HC-PEM and the electrode. The decal transfer was enabled at low temperatures and pressures, and the interfacial resistance in the membrane–electrode assembly (MEA) was reduced. Furthermore, the micropillar structured electrode configuration significantly reduced the oxygen transport resistance in the MEA. Various diagnostic techniques were conducted to find out the effects of the membrane surface modification, interface adhesion, and mass transport, such as physical characterizations, mechanical stress tests, and diverse electrochemical measurements.

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Section: Resultsmentioning

confidence: 99%

Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

Choi

Kim

Chae

et al. 2022

ACS Appl. Mater. Interfaces

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“…Meanwhile, a blind test data set for other advanced PEMs was also collected after the predictive model had been constructed. It contains 33 polarization curves, retrieved from six original literature studies − reported in the recent year till July 2021.…”

Section: Methodsmentioning

confidence: 99%

Exploration of the Polarization Curve for Proton-Exchange Membrane Fuel Cells

Liu

Ding

et al. 2021

ACS Appl. Mater. Interfaces

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The polarization curve is the most important profile to evaluate the performance of proton-exchange membrane fuel cells (PEMFCs). To explore the important thermodynamic parameters and their correlation with the composition, fabrication, and operational settings, a comprehensive data set consisting of 446 polarization curves from 191 perfluorosulfonate and 255 sulfonated hydrocarbon-based PEMs is collected. Then, a Markov chain Monte Carlo simulation within the Bayesian frame provides higher than 93% confidence to extract six important thermodynamic parameters including open-circuit potential, the transfer coefficient, the current loss, the reference exchange current density, the internal resistance, and the limiting current density. An extreme gradient boosting algorithm affords a mean determinative coefficient of 0.89 to predict the whole polarization curve and a confidence of 94% to predict the peak power density (PPD). Both approaches to explore the polarization curve for PEMFCs show good robustness in the blind test. Overall, the PPD is positively correlated with the ion-exchange capacity of the polymer, operational temperature, and humidity and is negatively affected by internal resistance, membrane thickness, and the loading of the catalyst. The flow rate of fuels can effectively enhance them, while the increase of catalyst loading or fuel concentration shows deleterious impacts.

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“…Among these, most consideration relates to the PEMFC and AFC because of their operating temperature, which can correspond to the room temperature [ 41 , 42 ]. Moreover, hydrogen was applied to PEMFC and AFC as fuel in the anode side, and the reaction happened without any other harmful gases and byproducts [ 43 ]. The operating principle and reaction process of PEMFC and AFC has been schematically illustrated in Figure 1 a and Figure 1 b, respectively [ 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Developments on Bioinspired Cellulose Containing Polymer Nanocomposite Cation and Anion Exchange Membranes for Fuel Cells (PEMFC and AFC)

Thangarasu

2022

Polymers

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Hydrogen fuel cell (FC) technologies are being worked on as a possible replacement for fossil fuels because they produce a lot of energy and do not pollute the air. In FC, ion-exchange membranes (IEMs) are the vital components for ion transport between two porous electrodes. However, the high production cost of commercialized membranes limits their benefits. Various research has focused on cellulose-based membranes such as IEM with high proton conductivity, and mechanical, chemical, and thermal stabilities to replace the high cost of synthetic polymer materials. In this review, we focus on and explain the recent progress (from 2018 to 2022) of cellulose-containing hybrid membranes as cation exchange membranes (CEM) and anion exchange membranes (AEM) for proton exchange membrane fuel cells (PEMFC) and alkaline fuel cells (AFC). In this account, we focused primarily on the effect of cellulose materials in various membranes on the functional properties of various polymer membranes. The development of hybrid membranes with cellulose for PEMFC and AFC has been classified based on the combination of other polymers and materials. For PEMFC, the sections are associated with cellulose with Nafion, polyaryletherketone, various polymeric materials, ionic liquid, inorganic fillers, and natural materials. Moreover, the cellulose-containing AEM for AFC has been summarized in detail. Furthermore, this review explains the significance of cellulose and cellulose derivative-modified membranes during fuel cell performance. Notably, this review shows the vital information needed to improve the ion exchange membrane in PEMFC and AFC technologies.

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Synthesis of Sulfonated Poly(Arylene Ether Sulfone)s Containing Aliphatic Moieties for Effective Membrane Electrode Assembly Fabrication by Low-Temperature Decal Transfer Methods

Cited by 5 publications

References 31 publications

Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

Exploration of the Polarization Curve for Proton-Exchange Membrane Fuel Cells

Recent Developments on Bioinspired Cellulose Containing Polymer Nanocomposite Cation and Anion Exchange Membranes for Fuel Cells (PEMFC and AFC)

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