Effect of “bridge” on the performance of organic-inorganic crosslinked hybrid proton exchange membranes via KH550

Han, Hailan; Li, Hai Qiang; Liu, Meiyu; Xu, Lizhe; Xu, Jingmei; Wang, Shuang; Ni, Hongzhe; Wang, Zhe

doi:10.1016/j.jpowsour.2016.11.066

Cited by 45 publications

(30 citation statements)

References 59 publications

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“…It may be excessive that silane coupling agent was easy to bond, but not conducive to the dispersion of MMT, which caused obvious stress concentration and decreased mechanical properties. [22] 3.8 | Barrier properties Figure 10 shows the changes of oxygen permeability and water vapor transmittance of nanocomposites. After adding KH550, the oxygen permeability and water vapor transmittance of PHBH/MMT/KH550 nanocomposites showed a trend of decreasing first and then increasing.…”

Section: Tem Micromorphology Of the Nanocompositesmentioning

confidence: 99%

“…[17] The silane coupling agent, 3-aminopropyltriethoxysilane (KH550), is frequently used for nanoparticle surface modification, which has strong interaction with the matrix and can enhance the interfacial compatibility between inorganic phase and organic phase. [21,22] Shadpour added KH550 into PVA/MMT nanocomposites, effectively improving the interfacial compatibility and thermal stability of PVA/MMT nanocomposites. [23] From the above considerations, the KH550 can be considered as a coupling agent for the PHBH and MMT to improve the properties of PHBH/ MMT.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced mechanical, thermal, and barrier properties of poly (3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate)/montmorillonite nanocomposites using silane coupling agent

Dong

Zhou

et al. 2020

Polymer Composites

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A nanocomposite of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH)/ montmorillonite (MMT) modified with silane coupling agent 3-aminopropyltriethoxysilane (KH550) (PHBH/MMT/KH550) was prepared by solution casting method. The effects of KH550 content on properties of nanocomposites were comparatively investigated. According to the Fourier transform infrared spectra, the new chemical bonding between the PHBH and the MMT was formed by adding KH550. The crystallinity, thermal properties, mechanical properties, and barrier properties of the nanocomposites were improved because of the good dispersion of MMT. Compared with pure PHBH, a 220.05%, 158.25%, and 58.91% improvement in young's modulus, tensile strength, and elongation at break was obtained. The water vapor transmission coefficient was decreased by 113.30%. Moreover, it was notable that the nanocomposite possessed the optimal mechanical properties when the KH550 content was 5 wt%.The obtained results revealed that the nanocomposite will expand the practical application of PHBH base plastics as a substitute of traditional petrochemical materials.

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Section: Tem Micromorphology Of the Nanocompositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical, thermal, and barrier properties of poly (3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate)/montmorillonite nanocomposites using silane coupling agent

Dong

Zhou

et al. 2020

Polymer Composites

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“…However, there are still issues that have to be tackled in order to make them economically competitive. For this reason, great research efforts have been made in recent years in order to increase the performance [10][11][12][13] and the reliability [14][15][16][17][18][19] of such FCs, and to decrease their cost [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of the effect of temperature and inlet humidities on the parameters of a semiempirical model of the internal resistance of a polymer electrolyte membrane fuel cell

Giner-Sanz

Ortega

Pérez-Herranz

2018

Journal of Power Sources

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The internal resistance of a PEM fuel cell depends on the operation conditions and on the current delivered by the cell. This work's goal is to obtain a semiempirical model able to reproduce the effect of the operation current on the internal resistance of an individual cell of a commercial PEM fuel cell stack; and to perform a statistical analysis in order to study the effect of the operation temperature and the inlet humidities on the parameters of the model. First, the internal resistance of the individual fuel cell operating in different operation conditions was experimentally measured for different DC currents, using the high frequency intercept of the impedance spectra. Then, a semiempirical model based on Springer and co-workers' model was proposed. This model is able to successfully reproduce the experimental trends. Subsequently, the curves of resistance versus DC current obtained for different operation conditions were fitted to the semiempirical model, and an analysis of variance (ANOVA) was performed 2 in order to determine which factors have a statistically significant effect on each model parameter. Finally, a response surface method was applied in order to obtain a regression model.

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“…20 Further, the addition of inorganic fillers into the PEM may contribute to the enhancement of mechanical property, ionic conductivity, and thermal stability. 21 To date, various types of fillers such as titania, zirconia, and silica have been incorporated within the PEM to increase the properties of the membrane. [22][23][24][25] Similar to inorganic fillers, several authors reported carbon-based nanomaterials (carbon nanotubes, carbon quantum dots, graphene oxide, and fullerenes) incorporated composite PEM.…”

Section: Discussionmentioning

confidence: 99%

“…Besides the progress of novel polymer synthesis, the addition of inorganic nanoparticles within the membrane has also gain researchers attention because of the barrier effect of well‐dispersed nanoparticles . Further, the addition of inorganic fillers into the PEM may contribute to the enhancement of mechanical property, ionic conductivity, and thermal stability . To date, various types of fillers such as titania, zirconia, and silica have been incorporated within the PEM to increase the properties of the membrane .…”

Section: Introductionmentioning

confidence: 99%

Highly branched poly(arylene ether)/surface functionalized fullerene‐based composite membrane electrolyte for DMFC applications

et al. 2019

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Summary Sulfonated branched polymer membranes have been gaining immense attention as the separator in energy‐related applications especially in fuel cells and flow batteries. Utilization of this branched polymer membranes in direct methanol fuel cell (DMFC) is limited because of large free volume and high methanol permeation. In the present work, sulfonated fullerene is used to improve the methanol barrier property of the highly branched sulfonated poly(ether ether ketone sulfone)s membrane without sacrificing its high proton conductivity. The existence of sulfonated fullerene with larger size and the usage of small quantity in the branched polymer matrix effectively prevent the methanol transportation channel across the membrane. The composite membrane with an optimized loading of sulfonated fullerene displays the highest proton conductivity of 0.332 S cm−1 at 80°C. Radical scavenging property of the fullerene improves the oxidative stability of the composite membrane. Composite membrane exhibits the peak power density of 74.38 mW cm−2 at 60°C, which is 30% larger than the commercial Nafion 212 membrane (51.78 mW cm−2) at the same condition. From these results, it clearly depicts that sulfonated fullerene‐incorporated branched polymer electrolyte membrane emerges as a promising candidate for DMFC applications.

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Effect of “bridge” on the performance of organic-inorganic crosslinked hybrid proton exchange membranes via KH550

Cited by 45 publications

References 59 publications

Enhanced mechanical, thermal, and barrier properties of poly (3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate)/montmorillonite nanocomposites using silane coupling agent

Enhanced mechanical, thermal, and barrier properties of poly (3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate)/montmorillonite nanocomposites using silane coupling agent

Statistical analysis of the effect of temperature and inlet humidities on the parameters of a semiempirical model of the internal resistance of a polymer electrolyte membrane fuel cell

Highly branched poly(arylene ether)/surface functionalized fullerene‐based composite membrane electrolyte for DMFC applications

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