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In this work, sulfonated reduced graphene oxide (SRGO) has been synthesized and incorporated into conventional random sulfonated poly(ether ether ketone) (SPEEK) in order to decrease the proton conduction barrier between isolated sulfonic acid groups in SPEEK and improve its conduction properties. SRGO was prepared by a facile arylation of reduced graphene oxide (RGO) with diazonium salt, which allowed...
This article reviews recent studies on proton exchange membrane (PEM) materials for polymer electrolyte fuel cells. In particular, it focuses on the development of novel sulfonated aromatic hydrocarbon polymers for PEMs as alternatives to conventional perfluorinated polymers. It is necessary to improve proton conductivity especially under low-humidity conditions at high operating temperatures to breakthrough...
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