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Influence of the Molecular Weight on PVA/GO Composite Membranes for Fuel Cell Applications

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Influence of the Molecular Weight on PVA/GO Composite Membranes for Fuel Cell Applications

dc.contributor.author	González-Guisasola, C.
dc.contributor.author	Gil Castell, O.
dc.contributor.author	Teruel-Juanes, Roberto
dc.contributor.author	Ribes Greus, A.
dc.date.accessioned	2022-12-15T14:34:21Z
dc.date.available	2022-12-15T14:34:21Z
dc.date.issued	2020
dc.identifier.citation	González-Guisasola, C. Gil Castell, O. Teruel-Juanes, Roberto Ribes Greus, A. 2020 Influence of the Molecular Weight on PVA/GO Composite Membranes for Fuel Cell Applications Journal Of Renewable Materials 8 9 1171 1180
dc.identifier.uri	https://hdl.handle.net/10550/84788
dc.description.abstract	Composite polymer electrolyte membranes were prepared with poly (vinyl alcohol) (PVA). Two different molecular weight (Mw), 67·103 and 130·103 g·mol−1 were selected, cross-linked with sulfosuccinic acid (SSA) and doped graphene oxide (GO). The effects on the membranes obtained from these polymers were characterized in order to evaluate the fuel cell performance. Electron microscopy showed a proper nanoparticle distribution in the polymer matrix. The chemical structure was evaluated by Fourier transform infrared spectroscopy. The absence of a crystalline structure and the enhancement on the thermal stability with the addition of 1% of GO was demonstrated by thermal characterization. Total transference number and protonic conductivity were correlated to the performance of a hydrogen fuel cell. Overall, a power increase in the composite membranes with lower molecular weight was observed. Shorter polymer chains may improve protonic conductivity and consequently the fuel cell performance.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Renewable Materials, 2020, vol. 8, num. 9, p. 1171-1180
dc.subject	Materials
dc.subject	Òxids
dc.subject	Solucions polimèriques
dc.title	Influence of the Molecular Weight on PVA/GO Composite Membranes for Fuel Cell Applications
dc.type	journal article	es_ES
dc.date.updated	2022-12-15T14:34:22Z
dc.identifier.doi	10.32604/jrm.2020.04399
dc.identifier.idgrec	155955
dc.rights.accessRights	open access	es_ES