Enhanced proton conductivity and relative selectivity of sulfonated poly(arylene ether ketone sulfone) proton exchange membranes by using triazole-grafted 3-Glycidyloxypropyltrimethoxysilane

Li, Hai Qiang; Liu, Xue Jiao; Yang, Hui; Wang, Zhe; He, Jin

doi:10.1016/j.electacta.2018.08.114

Cited by 17 publications

(8 citation statements)

References 58 publications

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“…The emblematical adjacent to the SO 3 H appeared at δ 8.24 ppm 22 . The protons of characteristic peak of NH 2 were at δ 5.1 ppm 42 . The characteristic peak at δ 1.45 ppm was attributed to CH 3 on the AMPS side chain as shown in Figure 3B.…”

Section: Resultsmentioning

confidence: 93%

“…The first stage of weightlessness was at 30°C~200°C, which is because the absorbed water was removed. The second stage from 200°C to 450°C was mainly the decomposition of SO 3 H and NH 2 42 . When temperature exceeded 450°C, the backbone of Am‐S‐D‐AMPS was destroyed.…”

Section: Resultsmentioning

confidence: 99%

“…22 The protons of characteristic peak of NH 2 were at δ 5.1 ppm. 42 The characteristic peak at δ 1.45 ppm was attributed to CH 3 on the AMPS side chain as shown in Figure 3B. The characteristic peaks of CH 2 respectively appeared at δ 1.91 ppm, δ 2.70 ppm, and δ 3.31 ppm on side chain.…”

Section: Characterization Of Membranesmentioning

confidence: 89%

“…The second stage from 200 C to 450 C was mainly the decomposition of SO 3 H and NH 2 . 42 When temperature exceeded 450 C, the backbone of Am-S-D-AMPS was destroyed.…”

Section: Thermal Stability Of Membranesmentioning

confidence: 99%

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Construction of effective transmission channels by anchoring metal‐organic framework on side‐chain sulfonated poly(arylene ether ketone sulfone) for fuel cells

Shi

et al. 2022

Intl J of Energy Research

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A series of novel organic-inorganic hybrid membranes assembled by side-chain type sulfonated poly(arylene ether ketone sulfone) with amino groups (Am-SPAEKS-DBS) and ZIF-67 were prepared. Am-SPAEKS-DBS containing double bonds was synthesized by condensation polymerization, and the AMPS was grafted onto the main chain by post sulfonation. ZIF-67 was prepared by an ordinary solvent method. The structures of ZIF-67, Am-SPAEKS-DBS, and hybrid membranes were analyzed by proton nuclear magnetic resonance ( 1 H NMR), scanning electron microscopy (SEM), powder X-ray diffraction (PXRD) and Fourier transform infrared (FT-IR). All hybrid membranes had good dimensional stability and excellent oxidation stability. In addition, the swelling ratios of all hybrid membranes were low (<17.46%) at even 100 C, and the oxidative stability was higher than 92%. The proton conductivities of this series of membranes were much higher (0.0540.069 S cm À1 at 30 C, 0.088-0.116 S cm À1 at 80 C) than pure membrane (0.038 S cm À1 at 30 C, 0.076 S cm À1 at 80 C).The experimental results exhibited that the comprehensive properties of hybrid membranes are good, and hybrid membranes had substantially possible as proton exchange membranes. Highlights• Metal-organic frameworks were anchored on side-chain type organic polymer backbone.• The hybrid PEMs showed good dimensional stability and excellent oxidation stability.• The imidazole as a ligand in ZIF-67 contributes a part of the dissociated protons. K E Y W O R D Sorganic-inorganic hybrid membranes, proton conductivities, side-chains, sulfonated poly(arylene ether ketone sulfone), ZIF-67 Mengchi Ju and Qingyuan Shi contributed equally to this work.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Membranesmentioning

confidence: 89%

“…The second stage from 200 C to 450 C was mainly the decomposition of SO 3 H and NH 2 . 42 When temperature exceeded 450 C, the backbone of Am-S-D-AMPS was destroyed.…”

Section: Thermal Stability Of Membranesmentioning

confidence: 99%

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Construction of effective transmission channels by anchoring metal‐organic framework on side‐chain sulfonated poly(arylene ether ketone sulfone) for fuel cells

Shi

et al. 2022

Intl J of Energy Research

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“…However, such modification methods restrict the segment movement, leading to a decrease in proton conductivity. Li et al [157] synthesized sPT with amino groups on side chains (abbreviated as AMSP). The crosslinked networks are formed by triazole-grafted 3-glycidyloxypropyltrimethoxysilane (GT), as shown in Fig.…”

Section: Crosslinkingmentioning

confidence: 99%

Structural architectures of polymer proton exchange membranes suitable for high-temperature fuel cell applications

2021

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High-temperature proton exchange membrane (HT-PEM) fuel cells offer more advantages than low-temperature PEM fuel cells. The ideal characteristics of HT-PEMs are high conductivities, low-humidity operation conditions, adequate mechanical properties, and competitive costs. Various molecular moieties, such as benzimidazole, benzothiazole, imide, and ether ether ketone, have been introduced to polymer chain backbones to satisfy the application requirements for HT-PEMs. The most common sulfonated polymers based on the main chain backbones have been employed to improve the rties. Side group/chain engineering, includ crosslinking, has been widely applied to HT-PEMs to further improve their proton conductivity, thermal stability, and mechanical properties. Currently, phosphoric acid-doped polybenzimidazole is the most successful polymer material for application in HT-PEMs. The compositing/blending modification methods of polymers are effective in obtaining high PA-doping levels and superior mechanical properties. In this review, the current progress of various membrane materials used for HT-PEMs is summarized. The synthesis and performance characteristics of polymers containing specific moieties in the chain backbones applied to HT-PEMs are discussed systemically. Various modification approaches and their deficiencies associated with HT-PEMs are analyzed and clarified. Prospects and future challenges are also presented.

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Fabrication of alginate-based multi-crosslinked biomembranes for direct methanol fuel cell application

Wang

Han

Wang

et al. 2023

Carbohydrate Polymers

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Enhanced proton conductivity and relative selectivity of sulfonated poly(arylene ether ketone sulfone) proton exchange membranes by using triazole-grafted 3-Glycidyloxypropyltrimethoxysilane

Cited by 17 publications

References 58 publications

Construction of effective transmission channels by anchoring metal‐organic framework on side‐chain sulfonated poly(arylene ether ketone sulfone) for fuel cells

Construction of effective transmission channels by anchoring metal‐organic framework on side‐chain sulfonated poly(arylene ether ketone sulfone) for fuel cells

Structural architectures of polymer proton exchange membranes suitable for high-temperature fuel cell applications

Fabrication of alginate-based multi-crosslinked biomembranes for direct methanol fuel cell application

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