Research the effect of crosslinking degree on the overall performance of novel proton exchange membranes

Zhu, Heng; Jia, Meng; Li, Qinke; Zhang, Chengwei; Zheng, Penglun

doi:10.1016/j.ssi.2020.115325

Cited by 9 publications

(1 citation statement)

References 57 publications

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“…It is widely accepted in the field of proton conduction that in most polymeric systems an increase in crosslinks can increase the efficiency of proton conducting membranes. 22,23 This mostly depends on the increased ability to absorb water (swell) with highly crosslinked systems, as water is an effective medium for proton conduction. However, there is still some debate about the trade-offs between mechanical robustness and ion conductivity.…”

Section: Polyacrylamide Hydrogelsmentioning

confidence: 99%

Effect of polymerization on free water in polyacrylamide hydrogels observed with Brillouin spectroscopy

Gorman,

McNeil

2024

Soft Matter

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Section: Polyacrylamide Hydrogelsmentioning

confidence: 99%

Effect of polymerization on free water in polyacrylamide hydrogels observed with Brillouin spectroscopy

Gorman,

McNeil

2024

Soft Matter

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Click chemistry‐based azide‐substituted polysulfone/alkynyl‐substituted sulfonated polyvinyl alcohol/nafion blend membranes for direct methanol fuel cells

Yuan,

Li,

Dong

et al. 2023

Journal of Polymer Science

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At present, commercial Nafion membrane is not suitable for proton exchange membrane used in direct methanol fuel cell (DMFC) due to the severe methanol permeation phenomenon. This work reported the preparation and characterization of azide‐substituted polysulfone (PSU‐N3) and alkynyl‐substituted sulfonated polyvinyl alcohol (SAPVA) crosslinked in the matrix of Nafion membrane base on click chemistry applied in DMFC. The compatibility between PSU‐N3 and SAPVA is promoted due to the formation of crosslinked network structure. Key properties, including dimensional stability, oxidative stability, mechanical behavior, methanol permeability and proton conductivity, are compared with those of the recast Nafion membrane. The prepared blend membranes exhibit lower methanol permeability due to the crosslinked network and well‐dispersed microphase structure of PSU‐PVA in the Nafion matrix. The proton selectivity of the Nafion‐PSU‐PVA‐3 membrane is 9.16 × 104 S s/cm3, much higher than that of the recast Nafion membrane (2.82 × 104 S s/cm3). In DMFC single cell tests, the maximum power density of the Nafion‐PSU‐PVA‐3 membrane is 4.6 mW/cm2, about 58.6% higher than that of the recast Nafion membrane. All the results indicate that the prepared blend membranes have the potential to be applied in DMFC.

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RETRACTED ARTICLE: Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone) containing rigid fluorene group for DMFCs applications

Yuan

Wang

2020

Colloid Polym Sci

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Research the effect of crosslinking degree on the overall performance of novel proton exchange membranes

Cited by 9 publications

References 57 publications

Effect of polymerization on free water in polyacrylamide hydrogels observed with Brillouin spectroscopy

Effect of polymerization on free water in polyacrylamide hydrogels observed with Brillouin spectroscopy

Click chemistry‐based azide‐substituted polysulfone/alkynyl‐substituted sulfonated polyvinyl alcohol/nafion blend membranes for direct methanol fuel cells

RETRACTED ARTICLE: Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone) containing rigid fluorene group for DMFCs applications

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