The effect of sulfonated poly(ether ether ketone) as an electrode binder for direct methanol fuel cell (DMFC)

Jung, Ho‐Young; Cho, Ki-Yun; Sung, Kyung A; Kim, Wan-Keun; Park, Jung-Ki

doi:10.1016/j.jpowsour.2006.01.075

Cited by 58 publications

(26 citation statements)

References 12 publications

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“…One approach is to use a catalyst binder with the same composition as the PEM [109,175,176]. This method was effective in improving compatibility with the PEM.…”

Section: Surface Fluorinated Pemsmentioning

confidence: 99%

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Park

Lee

Guiver

2011

Progress in Polymer Science

619

229

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“…One approach is to use a catalyst binder with the same composition as the PEM [109,175,176]. This method was effective in improving compatibility with the PEM.…”

Section: Surface Fluorinated Pemsmentioning

confidence: 99%

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Park

Lee

Guiver

2011

Progress in Polymer Science

619

229

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“…[52][53][54] Thus the development of new proton conducting polymers for membranes ought to be complemented by the development of similar polymers for use in catalyst layers-but the latter has considerably lagged the former. Perhaps this is because of a perception that having developed an alternative hydrocarbon proton conducting polymer it would be a simple matter to incorporate it in the catalyst layers to prepare MEAsas is conventionally carried out with PFSAs.…”

Section: Alternative Proton Conducting Polymers For Use In Catalyst Lmentioning

confidence: 99%

“…However, even under similar reaction conditions the degree of sulfonation of polyaromatic polymers can vary widely between synthetic batches. Sulfonated polyetheretherketone (sPEEK) 53 and sulfonated polyarylsulfones (sPAES) 52 have been incorporated in catalyst layers and examined in methanol fuel cells, and while the beginning-of-life performances of sPEEK 53 or sPAES 52 -based MEAs were lower than MEAs prepared with polyaromatic membrane and NafionÒ-based catalyst layer, the interfacial resistance of the catalyst layer/membrane interface remained constant during operation, whereas that of the NafionÒ/polyaromatic-MEA increased significantly. The lack of compatibility between the polyaromatic electrolytes and perfluorosulfonic leads rapidly to delamination of the CL from the membrane and a decrease in fuel performance.…”

Section: Durabilitymentioning

confidence: 99%

Hydrocarbon proton conducting polymers for fuel cell catalyst layers

Péron

Shi

Holdcroft

2011

Energy Environ. Sci.

103

115

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Proton exchange membrane fuel cells (PEMFCs) employing proton conducting membranes are promising power sources for automotive applications. Perfluorosulfonic acid (PFSA) ionomer represents the state-of-the-art polymer used in both the membrane and catalyst layer to facilitate the transport of protons. However, PFSA ionomer is recognized as having significant drawbacks for largescale commercialization, which include the high cost of synthesis and use of fluorine-based chemistry. According to published research much effort has been directed to the synthesis and study of non-PFSA electrolyte membranes, commonly referred to as hydrocarbon membranes, which has led to optimism that the less expensive proton conducting membranes will be available in the not-so-distant future. Equally important, however, is the replacement of PFSA ionomer in the catalyst layer, but in contrast to membranes, studies of catalyst layers that incorporate a hydrocarbon polyelectrolyte are relatively sparse and have not been reviewed in the open literature; despite the knowledge that hydrocarbon polyelectrolytes in the catalyst layer generally lead to a decrease in electrochemical fuel cell kinetics and mass transport. This review highlights the role of the solid polymer electrolyte in catalyst layers on pertinent parameters associated with fuel cell performance, and focuses on the effect of replacing perfluorosulfonic acid ionomer with hydrocarbon polyelectrolytes. Collectively, this review aims to provide a better understanding of factors that have hindered the transition from PFSA to non-PFSA based catalyst layers.

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“…[83] Jung et al investigated the durability of PEMFCs with SAP-based membranes and SAP-based electrode binders. [84,85] It was claimed that SAP electrode binders (for example, sulfonated poly(arylene ether sulfone) and SPEEK) were more efficient than conventional Nafion binders at maintaining the long-term stability of the DMFC. However, the control of swelling of the SAP-based binder, while maintaining high proton conductivity, is still pivotal for membraneelectrode compatibility.…”

Section: Durability Test Of Sap-based Electrode Bindersmentioning

confidence: 99%

Durability of Sulfonated Aromatic Polymers for Proton‐Exchange‐Membrane Fuel Cells

2011

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As a key component of proton-exchange-membrane fuel cells (PEMFCs), proton-exchange membranes (PEMs) must continuously withstand very harsh environments during long-term fuel cell operations. With the coming commercialization of PEMFCs, investigations into the durability and degradation of PEMs are becoming more and more urgent and interesting. Herein, various recent attempts and achievements to improve the durability of sulfonated aromatic polymers (SAPs) are reviewed and some further developments are predicted. Extensive investigations into inexpensive SAPs as alternative electrolyte membranes include modification of available polymer materials; design, synthesis, and optimization of new macromolecules; durability testing; and exploring the degradation mechanisms.

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The effect of sulfonated poly(ether ether ketone) as an electrode binder for direct methanol fuel cell (DMFC)

Cited by 58 publications

References 12 publications

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Hydrocarbon proton conducting polymers for fuel cell catalyst layers

Durability of Sulfonated Aromatic Polymers for Proton‐Exchange‐Membrane Fuel Cells

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