UV-crosslinking of polystyrene anion exchange membranes by azidated macromolecular crosslinker for alkaline fuel cells

Xue, Jiandang; Liu, Lei; Liao, Jiayou; Shen, Yinghua; Li, Nanwen

doi:10.1016/j.memsci.2017.04.049

Cited by 71 publications

(34 citation statements)

References 40 publications

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“…16,23,24 In operating AEMFCs, single polarisation curves of PPO-based membranes have shown that these materials can be used in a fuel cell. 13,17,18,[25][26][27] However, there are only a few studies where correlations between membrane properties ex situ and in the fuel cell are analysed. 16,28 Liu et al 16 used materials with different ammonium cationic groups directly attached to the polymer backbone and varied the lengths of alkyl chains attached to the cationic groups.…”

Section: Introductionmentioning

confidence: 99%

Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement

Carlson

Eriksson

Olsson

et al. 2020

Sustainable Energy Fuels

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Section: Introductionmentioning

confidence: 99%

Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement

Carlson

Eriksson

Olsson

et al. 2020

Sustainable Energy Fuels

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“…Over the last few years, aside from well-known quaternized-based polymers AEMs such as polysulfone [5,6], polystyrene [7,8], poly(vinyl alcohol) [9,10], and poly (2,6-dimethyl-1,4-phenylene oxide), new quaternized polymers AEMs including poly(butylimidazolium) [11], poly(aryl ether oxadiazole) [12], poly(arylene ether sulfone) [13], poly(arylene ether nitrile) [14], poly(arylene ether ketone sulfone) [15], and radiation-grafted poly(ethylene-co-tetrafluoroethylene) [16] have been successfully fabricated and characterized. Nevertheless, these type of polymers are generally costly, and require a complex quaternization process, as well as frequently using toxic, even carcinogenic, substances [17].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of PVA/PDDA/Nano-Zirconia Composite Anion Exchange Membranes for Fuel Cells

Samsudin

Hacker

2019

Polymers

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Anion exchange membranes (AEMs) contribute significantly to enhance the performance and efficiency of alkaline polymer electrolyte fuel cells (APEFCs). A sequence of composite anion exchange membranes (AEMs) consisting of poly(vinyl alcohol) (PVA), poly(diallyldimethylammonium chloride) (PDDA), and nano-zirconia (NZ) has been prepared by a solution casting technique. The effect of zirconia mass ratio on attribute and performance of composite AEMs was investigated. The chemical structures, morphology, thermal, and mechanical properties of AEMs were characterized by FTIR, SEM, thermogravimetric analysis, and universal testing machine, respectively. The performance of composite AEMs was verified using water uptake, swelling degree, ion-exchange capacity, and OH− conductivity measurement. The nano-zirconia was homogeneously dispersed in the PVA/PDDA AEMs matrix. The mechanical properties of the composite AEMs were considerably enhanced with the addition of NZ. Through the introduction of 1.5 wt.% NZ, PVA/PDDA/NZ composite AEMs acquired the highest hydroxide conductivity of 31.57 mS·cm−1 at ambient condition. This study demonstrates that the PVA/PDDA/NZ AEMs are a potential candidate for APEFCs application.

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“…In addition, it is well known that high ion exchange capacity (IEC) is needed to improve conductivity of AEM, but high IEC value leads to high water uptake, swelling ratio, and poor mechanical property concurrently . The current research indicates that chemical crosslinking is an effective method to enhance dimensional stability and mechanical stability of AEMs …”

Section: Introductionmentioning

confidence: 97%

Crosslinked anion exchange membrane with improved membrane stability and conductivity for alkaline fuel cells

Wang

Liu

Wang

2019

J of Applied Polymer Sci

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As a core component of anion exchange membrane (AEM) fuel cells, it has practical significance to improve the performance of AEMs. However, it is difficult to obtain AEM with both good stability and high conductivity. In this study, a series of AEMs were prepared by chloromethylation, quaternization, and crosslinking reactions. The quaternization reaction was carried out first to ensure that there are abundant quaternary ammonium groups on AEM and enhance the conductivity of membrane. N,N,N′,N′‐tetramethylethylenediamine was used as a crosslinker to improve membrane stability and mechanical property. A simple, mild, and cost‐effective AEM synthetic route was developed. This strategy achieves a certain balance of electrochemical and physical properties. The effect of the crosslinking reactions on the property of membrane was evaluated. Crosslinked membranes have better dimensional stability (water uptake: 20.2% and swelling ratio: 2.1%), mechanical properties (55.84 MPa), and alkaline stability because crosslinked structures result in large steric hindrance. The mutually independent quaternization and crosslinking reaction do not affect the electrochemical performance of membranes; in the crosslinking reaction stage, crosslinker also reacted as quaternization agent and increased the number of reactive groups in AEM. Thus, the resulting crosslinked AEM exhibits higher ion exchange capacity and ionic conductivities (46.4 mS cm−1). © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48169.

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UV-crosslinking of polystyrene anion exchange membranes by azidated macromolecular crosslinker for alkaline fuel cells

Cited by 71 publications

References 40 publications

Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement

Fuel cell evaluation of anion exchange membranes based on poly(phenylene oxide) with different cationic group placement

Preparation and Characterization of PVA/PDDA/Nano-Zirconia Composite Anion Exchange Membranes for Fuel Cells

Crosslinked anion exchange membrane with improved membrane stability and conductivity for alkaline fuel cells

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