Synthesis and characterisation of novel fluorinated polymers bearing pendant imidazole groups and blend membranes: New materials for PEMFC operating at low relative humidity

Frutsaert, Guillaume; David, Ghislain; Améduri, Bruno; Jones, Deborah J.; Rozière, Jacqués; Glipa, Xavier

doi:10.1016/j.memsci.2010.10.047

Cited by 31 publications

(23 citation statements)

References 30 publications

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“…It is well known that the performance of Nafion greatly depends on the perfluorinated structure [43]. To utilize the advantages of fluorinated structure, a novel base copolymer containing a chlorotrifluorinated backbone and pendant imidazole groups has been developed by David et al [44], and it could be used as one component for fabricating acid-base blend membranes for PEMFCs. The pendant imidazole group was first protected by a benzyl group before polymerization as shown in Figure 5a and then was deprotected after polymerization to form the pendant imidazole groups that can participate in the proton transfer process via the Grotthuss-type mechanism.…”

Section: Speek-based Acid-base Membranesmentioning

confidence: 99%

Novel Blend Membranes Based on Acid-Base Interactions for Fuel Cells

2012

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Fuel cells hold great promise for wide applications in portable, residential, and large-scale power supplies. For low temperature fuel cells, such as the proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs), proton-exchange membranes (PEMs) are a key component determining the fuel cells performance. PEMs with high proton conductivity under anhydrous conditions can allow PEMFCs to be operated above 100 °C, enabling use of hydrogen fuels with high-CO contents and improving the electrocatalytic activity. PEMs with high proton conductivity and low methanol crossover are critical for lowering catalyst loadings at the cathode and improving the performance and long-term stability of DMFCs. This review provides a summary of a number of novel acid-base blend membranes consisting of an acidic polymer and a basic compound containing N-heterocycle groups, which are promising for PEMFCs and DMFCs.

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Section: Speek-based Acid-base Membranesmentioning

confidence: 99%

Novel Blend Membranes Based on Acid-Base Interactions for Fuel Cells

2012

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“…David et al [127] used radical-initiated copolymerization of CTFE with 2-chloroethylvinylether (CEVE) to yield chlorotrifluorinated backbone and imidazole-terminated pendant ethylene oxide groups as a high-molecular-weight polymer for protonconducting membranes in PEMFCs. David et al [127] used radical-initiated copolymerization of CTFE with 2-chloroethylvinylether (CEVE) to yield chlorotrifluorinated backbone and imidazole-terminated pendant ethylene oxide groups as a high-molecular-weight polymer for protonconducting membranes in PEMFCs.…”

Section: Other Fluoropolymers As Proton Exchange Membranesmentioning

confidence: 99%

Fluorosilicones and Other Fluoropolymers

Mistri

Ghosh

Banerjee

2015

Handbook of Specialty Fluorinated Polymers

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“…More recently, our group reported a family of novel proton-conducting membranes based on a blend comprising sulfonated poly(ether ether ketone) (s-PEEK; IEC = 1.3 meq g −1 ) and fluorinated copolymers bearing different azole groups [37,38]. s-PEEK enabled the supply of proton conductivity at temperatures <80 °C while the azole group enhanced it at higher temperatures.…”

Section: Membranes Based On Fluorinated Copolymers Containing Triazolmentioning

confidence: 99%