Enhancing properties of poly(2,6-dimethyl-1,4-phenylene oxide)-based anion exchange membranes with 5-mercaptotetrazole modified graphene oxides

Zhang, Dengji; Ye, Niya; Chen, Shaoshuai; Wan, Ruiying; Yang, Yunfei; He, Ronghuan

doi:10.1016/j.renene.2020.06.052

Cited by 25 publications

(9 citation statements)

References 65 publications

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“…Moreover, AFM phase images of composite AEMs showed a distinctly phase-separated morphology overall, unlike the case pristine QPAEK membrane. It is expected that the incorporation of GO-MO into the polymer matrix induced the distinct phase separation, which can provide efficient ion migration through ionic passages . Furthermore, Figure d shows the 4 times folding and unfolding of the QPAEK@GO-MO 0.7 wt %.…”

Section: Resultsmentioning

confidence: 97%

“…It is expected that the incorporation of GO-MO into the polymer matrix induced the distinct phase separation, which can provide efficient ion migration through ionic passages. 48 Furthermore, Figure 4d shows the 4 times folding and unfolding of the QPAEK@GO-MO 0.7 wt %. As shown, it can be seen that its membrane showed superior flexibility and are easily bent and folded.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Fabrication of High-Alkaline Stable Quaternized Poly(arylene ether ketone)/Graphene Oxide Derivative Including Zwitterion for Alkaline Fuel Cells

Lee

Chu

Kim

et al. 2021

ACS Sustainable Chem. Eng.

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Anion-exchange membrane fuel cell (AEMFC) systems have emerged as a promising alternative for proton-exchange membrane due to their reasonable manufacturing cost and fast oxidation−reduction reactions. But, polymer backbone with ether linker-based poly arylene ether is quickly decomposed in high alkaline media, limiting the commercialization possibilities. Herein, a series of anion-exchange composite membranes having a graphene oxide derivative [graphene oxide linked with methyl orange (GO-MO) containing zwitterion] has been prepared for an anion-exchange membrane with improved ion conductivity and excellent alkaline stability. Here, the compositional ratio of quaternized poly(arylene ether ketone)@GO-MO was optimized with regard to dimensional properties and chemical stability. In particular, QPAEK@GO-MO 0.7 wt % exhibited the highest ion conductivity of 118.5 mS cm −1 with suitable dimensional stability, and peak power density of a membrane electrode assembly (MEA) based upon QPAEK@GO-MO 0.7 wt % reached 303.2 mW cm −2 at 60 °C in an H 2 /O 2 fuel cell test. Moreover, the alkaline stability of composite membranes shows to be considerably stable in high alkaline concentrations. This work provides a new strategy for fabricating the composite membrane introducing GO derivative including zwitterion for potential application of AEMFCs.

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Section: Resultsmentioning

confidence: 97%

Section: ■ Results and Discussionmentioning

confidence: 99%

Fabrication of High-Alkaline Stable Quaternized Poly(arylene ether ketone)/Graphene Oxide Derivative Including Zwitterion for Alkaline Fuel Cells

Lee

Chu

Kim

et al. 2021

ACS Sustainable Chem. Eng.

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“…For QPPO, the peaks at 2923 and 2862 cm −1 were caused by the stretching vibration of methyl and methylene. The peaks at 1608, 1471, and 1186 cm −1 can determine the existence of benzene rings and the C‐O‐C in main molecular chains, respectively 37 . Furthermore, a tiny peak at 1370 cm −1 was caused by quaternary ammonium groups 38 .…”

Section: Resultsmentioning

confidence: 99%

“…The peaks at 1608, 1471, and 1186 cm À1 can determine the existence of benzene rings and the C-O-C in main molecular chains, respectively. 37 Furthermore, a tiny peak at 1370 cm À1 was caused by quaternary ammonium groups. 38 For the identification of APMIMBr, the peak at 1575 cm À1 was attributed to the stretching vibration of C=N.…”

Section: Structure Analysismentioning

confidence: 99%

Enhancing anion conduction stability of quaternized poly(phenylene) oxide‐based anion exchange membranes with ionic liquids modified carbon nanomaterials

Wang

Zuo

Liu

et al. 2022

Intl J of Energy Research

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The anion exchange membrane (AEM) with high and stable conductivity is important to the commercial application of anion exchange membrane fuel cell. The AEM based on the polymer of quaternized poly(phenylene) oxide (QPPO) with enhanced anion conduction stability has been constructed through the introduction of the ionic liquid (IL) of 1-aminopropyl-3-methylimidazolium bromide (APMIMBr)-modified carbon nanomaterials, such as carbon nanotubes oxide (OCNT) and graphene oxide (GO) nanosheets.The IL-OCNT and IL-GO composites prevented hydroxyl groups from attacking the polymer of QPPO. Thus, QPPO/x(IL-OCNT) and QPPO/x(IL-GO) series membranes possessed enhanced hydroxide conductivity stability in alkaline solution. Specifically, QPPO/5%(IL-OCNT) and QPPO/5%(IL-GO) membranes exhibited the hydroxide conductivities of 23.0 and 28.5 mS/cm at 80 C. Notably, the hydroxide conductivities could reach 16.3 and 30.2 mS/cm while the prepared membranes were immersed in 2 M KOH solution for 1848 h. Furthermore, the stable hydroxide conductivity was derived from the fine dimension stability and mechanical property. The tensile stress values were, respectively, 19.4 and 19.8 MPa even if the membranes were immersed in alkaline solution. In the prepared QPPO/x(IL-OCNT) and QPPO/x(IL-GO) membranes,alkaline stability, anion exchange membrane, carbon nanotubes oxide, graphene oxide, ionic liquid, quaternized poly(phenylene) oxide

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“…The water permeability of nanoporous graphene resulted several orders higher than that of conventional reverse osmosis membrane by molecular dynamics simulations [ 42 ]. Moreover, graphene-based materials have been used to modify conventional separation membranes for ultrafiltration (UF) [ 43 ], nanofiltration (NF) [ 44 ] reverse osmosis (RO) [ 45 ], forward osmosis (FO) [ 46 ], ion exchange [ 47 ], pervaporation [ 48 ], and gas separation [ 49 ] to improve the separation. Furthermore, multilayered GO membranes can overcome membrane fouling.…”

Section: Brief Overview On Graphene and Its Derivativesmentioning

confidence: 99%

An Overview on Exploitation of Graphene-Based Membranes: From Water Treatment to Medical Industry, Including Recent Fighting against COVID-19

Lavorato

Fontananova

2023

Microorganisms

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Graphene and its derivatives have lately been the subject of increased attention for different environmental applications of membrane technology such as water treatment and air filtration, exploiting their antimicrobial and antiviral activity. They are interesting candidates as membrane materials for their outstanding mechanical and chemical stability and for their thin two-dimensional (2D) nanostructure with potential pore engineering for advanced separation. All these applications have evolved and diversified from discovery to today, and now graphene and graphene derivatives also offer fascinating opportunities for the fight against infective diseases such as COVID-19 thanks to their antimicrobial and antiviral properties. This paper presents an overview of graphene-based 2D materials, their preparation and use as membrane material for applications in water treatment and in respiratory protection devices.

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Enhancing properties of poly(2,6-dimethyl-1,4-phenylene oxide)-based anion exchange membranes with 5-mercaptotetrazole modified graphene oxides

Cited by 25 publications

References 65 publications

Fabrication of High-Alkaline Stable Quaternized Poly(arylene ether ketone)/Graphene Oxide Derivative Including Zwitterion for Alkaline Fuel Cells

Fabrication of High-Alkaline Stable Quaternized Poly(arylene ether ketone)/Graphene Oxide Derivative Including Zwitterion for Alkaline Fuel Cells

Enhancing anion conduction stability of quaternized poly(phenylene) oxide‐based anion exchange membranes with ionic liquids modified carbon nanomaterials

An Overview on Exploitation of Graphene-Based Membranes: From Water Treatment to Medical Industry, Including Recent Fighting against COVID-19

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