Side-chain-type quaternized naphthalene-based poly(arylene ether ketone)s for anhydrous high temperature proton exchange membranes

Li, Guibin; Zhao, Chengji; Zhu, Chunye; Ru, Chunyu; Li, Xuefeng; Qi, Duo; Wei, Yuxue; Na, Hui

doi:10.1039/c6ra08072c

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…All in all, it is an urgent demand to design a reasonable polymer framework and a suitable covalent crosslinker to satisfy the actual requirements of HT-PEMs. To our knowledge, poly (aryl ether ketone) (PAEK) is extensively used in the preparation of various electrolyte membranes in fuel cells due to its good thermal, mechanical, and chemical stability [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

3D Network Structural Poly (Aryl Ether Ketone)-Polybenzimidazole Polymer for High-Temperature Proton Exchange Membrane Fuel Cells

Jiang

Xiao

et al. 2020

Advances in Polymer Technology

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Poor mechanical property is a critical problem for phosphoric acid-doped high-temperature proton exchange membranes (HT-PEMs). In order to address this concern, in this work, a 3D network structural poly (aryl ether ketone)-polybenzimidazole (PAEK-cr-PBI) polymer electrolyte membrane was successfully synthesized through crosslinking reaction between poly (aryl ether ketone) with the pendant carboxyl group (PAEK-COOH) and amino-terminated polybenzimidazole (PBI-4NH2). PAEK-COOH with a poly (aryl ether ketone) backbone endows superior thermal, mechanical, and chemical stability, while PBI-4NH2 serves as both a proton conductor and a crosslinker with basic imidazole groups to absorb phosphoric acid. Moreover, the composite membrane of PAEK-cr-PBI blended with linear PBI (PAEK-cr-PBI@PBI) was also prepared. Both membranes with a proper phosphoric acid (PA) uptake exhibit an excellent proton conductivity of around 50 mS cm-1 at 170°C, which is comparable to that of the well-documented PA-doped PBI membrane. Furthermore, the PA-doped PAEK-cr-PBI membrane shows superior mechanical properties of 17 MPa compared with common PA-doped PBI. Based upon these encouraging results, the as-synthesized PAEK-cr-PBI gives a highly practical promise for its application in high-temperature proton exchange membrane fuel cells (HT-PEMFCs).

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Section: Introductionmentioning

confidence: 99%

3D Network Structural Poly (Aryl Ether Ketone)-Polybenzimidazole Polymer for High-Temperature Proton Exchange Membrane Fuel Cells

Jiang

Xiao

et al. 2020

Advances in Polymer Technology

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“…Poly(arylene ether ketone)s (PAEKs) are a class of engineering plastics that contain repeating units of ketone and ether and demonstrate strong thermal/oxygen stability as well as reliable mechanical qualities. , Since the PAEK-based polymers are inherently lacking in binding sites for PA, basic groups such as triazole, , imidazolium, , and quaternary ammonium − are commonly grafted into the structure to enable the formation of acid–base ion pairs with PA.…”

Section: Aromatic Polymer-based Pemsmentioning

confidence: 99%

Perspectives on Membrane Development for High Temperature Proton Exchange Membrane Fuel Cells

Ying,

Liu,

Wang

et al. 2024

Energy Fuels

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High temperature proton exchange membrane fuel cells (HT-PEMFCs) are a promising energy conversion technology due to their quick reaction kinetics, high tolerance to CO impurities, and ease of heat and water management. Nevertheless, the practical implementation of this technology is limited since traditional proton exchange membranes (PEMs) exhibit significantly reduced performance at high temperatures and low humidity. In this extreme situation, researchers have concentrated on investigating new membranes through the creation of novel polymers and fillers or by suggesting sophisticated modification processes, with the goal of attaining high proton conductivity, stable mechanical properties, and tremendous temperature tolerance. This Review focuses on the latest advancements in four PEM domains: (1) perfluorosulfonic acid (PFSA)-based PEMs; (2) aromatic polymerbased PEMs; (3) polybenzimidazole (PBI)-based PEMs; and (4) polymer of intrinsic microporosity (PIM)-based PEMs. We describe and provide an overview of the preparation methods, mechanistic analysis, and core characteristics (proton conductivity and peak power density) of the aforementioned membrane materials. Furthermore, prospective research paths and challenges in the development of PEMs toward practical applications are also suggested.

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Quaternized poly(aromatic ether sulfone) with siloxane crosslinking networks as high temperature proton exchange membranes

Wang

Jiang

et al. 2018

Applied Surface Science

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Side-chain-type quaternized naphthalene-based poly(arylene ether ketone)s for anhydrous high temperature proton exchange membranes

Abstract: The PA/Q-SCT-NPAEK-xx membranes with good proton conductivity, mechanical and thermal stabilities were prepared successfully.

Cited by 8 publications

References 30 publications

3D Network Structural Poly (Aryl Ether Ketone)-Polybenzimidazole Polymer for High-Temperature Proton Exchange Membrane Fuel Cells

3D Network Structural Poly (Aryl Ether Ketone)-Polybenzimidazole Polymer for High-Temperature Proton Exchange Membrane Fuel Cells

Perspectives on Membrane Development for High Temperature Proton Exchange Membrane Fuel Cells

Quaternized poly(aromatic ether sulfone) with siloxane crosslinking networks as high temperature proton exchange membranes

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