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Journal of Polymer Research
Erschienen in: Journal of Polymer Research 5/2019

01.05.2019 | ORIGINAL PAPER

Nafion®/ sulfated zirconia oxide-nanocomposite membrane: the effects of ammonia sulfate on fuel permeability

verfasst von: Rudzani Sigwadi, Touhami Mokrani, Mokhotjwa S. Dhlamini, Patrick Nonjola, Phumlani F. Msomi

Erschienen in: Journal of Polymer Research | Ausgabe 5/2019

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Abstract

Nafion®/sulfated zirconium nanocomposite membranes were prepared by incorporating sulfonated zirconia with ammonia sulfate and sulphuric acid, which enhances proton conductivity and reduces fuel crossover on Nafion® membrane as they sustain water affinity and strong acidity. XRD, AFM, SEM, FTIR and TGA were used to investigate the morphology and high temperature degradation of nanocomposite membranes compared with commercial Nafion® 117 membrane. The results show that nanocomposite membranes have low water content angle, improved thermal degradation and higher conductivity than commercial Nafion® 117 membrane, which holds great promise for fuel cell application. The Nafion®/ sulfated zirconia nanocomposite membrane obtained a higher IEC and water uptake due to the presence of SO42− providing extra acid sites for water diffusion. The proton conductivity calculated from impedance spectroscopy measurements were 7.891 S/cm and 0.146 S/cm, respectively, when compared with 0.113 S/cm of commercial Nafion® 117 membrane. The Nafion®/sulfated zirconium nanocomposite membranes showed a highest power density of 183 m. cm−2 when evaluated using a direct single cell methanol fuel cell.
Vorheriger Artikel CO2 plasticization effect and selectivity for Pt-Pd alloy coated polycarbonate membrane
Nächster Artikel Effect of reactive group types on the properties of poly(ethylene octane) toughened poly(lactic acid)

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Metadaten
Titel
Nafion®/ sulfated zirconia oxide-nanocomposite membrane: the effects of ammonia sulfate on fuel permeability
verfasst von
Rudzani Sigwadi
Touhami Mokrani
Mokhotjwa S. Dhlamini
Patrick Nonjola
Phumlani F. Msomi
Publikationsdatum
01.05.2019
Verlag
Springer Netherlands
Erschienen in
Journal of Polymer Research / Ausgabe 5/2019
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-019-1760-2

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