Development of a cross-linked quaternized poly(styrene-b-isobutylene-b-styrene)/graphene oxide composite anion exchange membrane for direct alkaline methanol fuel cell application

Dai, Peng; Mo, Zhao-Hua; Xu, Riwei; Zhang, Shu; Lin, Xingyi; Lin, Wen‐Feng; Wu, Yixian

doi:10.1039/c6ra08037e

Cited by 32 publications

(59 citation statements)

References 58 publications

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“…Examples of inorganic nanoparticles that have been used include metal ions, metal oxides, silica, functionalized nanoparticles (e.g. imidazoliumfunctionalized silsesquioxane), graphene oxide and carbon nanotubes [48,53,[102][103][104]. The inorganic phase is selected to provide improved ion conductivity and thermal, chemical and mechanical stability, while the organic phase is selected to provide the flexibility to the membrane [5,102].…”

Section: Advancements In Aem Preparation Methodsmentioning

confidence: 99%

A review of the synthesis and characterization of anion exchange membranes

2018

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This review highlights advancements made in anion exchange membrane (AEM) head groups, polymer structures and membrane synthesis methods. Limitations of current analytical techniques for characterizing AEMs are also discussed. AEM research is primarily driven by the need to develop suitable AEMs for the high-pH and high-temperature environments in anion exchange membrane fuel cells and anion exchange membrane water electrolysis applications. AEM head groups can be broadly classified as nitrogen based (e.g. quaternary ammonium), nitrogen free (e.g. phosphonium) and metal cations (e.g. ruthenium). Metal cation head groups show great promise for AEM due to their high stability and high valency. Through ''rational polymer architecture'', it is possible to synthesize AEMs with ion channels and improved chemical stability. Heterogeneous membranes using porous supports or inorganic nanoparticles show great promise due to the ability to tune membrane characteristics based on the ratio of polymer to porou2s support or nanoparticles. Future research should investigate consolidating advancements in AEM head groups with an optimized polymer structure in heterogeneous membranes to bring together the valuable characteristics gained from using head groups with improved chemical stability, with the benefits of a polymer structure with ion channels and improved membrane properties from using a porous support or nanoparticles. AbbreviationsAAEM Alkaline anion exchange membrane AEM Anion exchange membrane AEMFC Anion exchange membrane fuel cell AEMWE Anion exchange membrane water electrolysis CEM Cation exchange membrane DSC Differential scanning calorimetry IEC Ion exchange capacity (mmol/g) IEM Ion exchange membrane PEMFC Proton exchange membrane fuel cell

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Section: Advancements In Aem Preparation Methodsmentioning

confidence: 99%

A review of the synthesis and characterization of anion exchange membranes

2018

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“…The single cell performance with IGNRs/Pt electrocatalysts showed a maximum power density of 197 mW cm −2 and a current density of 372 mA cm −2 [84]. Cross-linked quaternized poly(styrene-b-isobutylene-b-styrene) (QSIBS) was the host matrix for organomodified graphene oxide (GOAN) quaternized with TMHDA [85] and for covalently linked graphene [86]. GO modified with butylvinylimidazolium (GO/IM) was incorporated inside a complex matrix composed by para-methyl styrene/butylvinylimidazolium (PMS/b-VIB) and poly(4,4 -diphenylether-5,5 -bibenzimidazole) (DPEBI) [87].…”

Section: Other Aliphatic Polymersmentioning

confidence: 99%

Anion Exchange Membranes with 1D, 2D and 3D Fillers: A Review

et al. 2021

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Hydroxide exchange membrane fuel cells (AEMFC) are clean energy conversion devices that are an attractive alternative to the more common proton exchange membrane fuel cells (PEMFCs), because they present, among others, the advantage of not using noble metals like platinum as catalysts for the oxygen reduction reaction. The interest in this technology has increased exponentially over the recent years. Unfortunately, the low durability of anion exchange membranes (AEM) in basic conditions limits their use on a large scale. We present in this review composite AEM with one-dimensional, two-dimensional and three-dimensional fillers, an approach commonly used to enhance the fuel cell performance and stability. The most important filler types, which are discussed in this review, are carbon and titanate nanotubes, graphene and graphene oxide, layered double hydroxides, silica and zirconia nanoparticles. The functionalization of the fillers is the most important key to successful property improvement. The recent progress of mechanical properties, ionic conductivity and FC performances of composite AEM is critically reviewed.

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“…[60,61,63,[65][66][67] Graphene-based membranes such as graphene-Nafion® membranes or sulfonated poly(ether ether ketone) (PEEK) polyme-GO membranes demonstrated great proton conductivities and stability at elevated temperatures, over 100°C, and increasing RH. Or, graphene oxides provide interconnected channels along the surface of the graphene which is ideal for ionic transport over Nafion® [61,65,68,69] At elevated temperatures, GO + Nafion® membranes are shown to retain more proton conductivity than Nafion® alone. [59] Or, Zwitterion-coated GO (ZC-GO) membranes were reported to show better performance than Nafion® membrane.…”

Section: Energy Conversion and Storagementioning

confidence: 99%

“…Water does act as the carrier that transports the proton ions through the walls of the membranes. Significantly elevated WU measurements lead to dimensional instability [76] For example Pure SPEEK demonstrated a high degree of dimensional swelling .However the use of graphenebased membrane can help reduce the swelling [69]. Further, the proton conductivity of sulfonated polymer PEMs is directly related to the degree of sulfonation of the polymers.…”

Section: Energy Conversion and Storagementioning

confidence: 99%

Graphene Membranes: Transport Properties and Energy Applications

Chabi

2021

MAMS

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Graphene materials are increasingly being used in all types of membrane-based technologies ranging from water purification to energy conversion systems such as fuel cell and solar fuel technologies. Graphene's physical and chemical richness enables a variety of mass transport mechanisms that are impossible in traditional membranes. These mechanisms are dictated by the graphene microstructure and its versatility which leads transport to occur via pores, sub-nanometer pores, or via nanochannels. Graphene membranes can be designed to create nanochannels that allow highly selective ion or gas transport by biomimicking naturally occurring biological systems. However, these potentials cannot be fully explored without understanding the interplay between graphene microstructures and the transport mechanism. Toward taking advantage of graphene membrane technology, a fundamental understanding of the mass transport mechanisms is necessary. In this Review, we provide an in-depth discussion about three different types of mass transport through graphene nanopores and graphene nanochannels. By focusing on the relation between nanopores/channels chemistry e.g. effect of functional groups and pore polarity and transport mechanism, we identify key lessons, challenges, and potential solutions to empowering membrane-based energy technologies.

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Development of a cross-linked quaternized poly(styrene-b-isobutylene-b-styrene)/graphene oxide composite anion exchange membrane for direct alkaline methanol fuel cell application

Abstract: A crosslinked quaternized poly(styrene-b-isobutylene-b-styrene)/graphene oxide composite anion exchange membrane showed high ionic conductivity and low methanol permeability.

Cited by 32 publications

References 58 publications

A review of the synthesis and characterization of anion exchange membranes

A review of the synthesis and characterization of anion exchange membranes

Anion Exchange Membranes with 1D, 2D and 3D Fillers: A Review

Graphene Membranes: Transport Properties and Energy Applications

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