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Hydroxide Conduction Enhancement of Chitosan Membranes by Functionalized MXene

In this study, imidazolium brushes tethered by –NH(2)-containing ligands were grafted onto the surface of a 2D material, MXene, using precipitation polymerization followed by quaternization. Functionalized MXene was embedded into chitosan matrix to prepare a hybrid alkaline anion exchange membrane....

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Detalles Bibliográficos
Autores principales: Wang, Lina, Shi, Benbing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6266289/
https://www.ncbi.nlm.nih.gov/pubmed/30469362
http://dx.doi.org/10.3390/ma11112335
Descripción
Sumario:In this study, imidazolium brushes tethered by –NH(2)-containing ligands were grafted onto the surface of a 2D material, MXene, using precipitation polymerization followed by quaternization. Functionalized MXene was embedded into chitosan matrix to prepare a hybrid alkaline anion exchange membrane. Due to high interfacial compatibility, functionalized MXene was homogeneously dispersed in chitosan matrix, generating continuous ion conduction channels and then greatly enhancing OH(−) conduction property (up to 172%). The ability and mechanism of OH(−) conduction in the membrane were elaborated based on systematic tests. The mechanical-thermal stability and swelling resistance of the membrane were evidently augmented. Therefore, it is a promising anion exchange membrane for alkaline fuel cell application.