Journal
JOURNAL OF POLYMER RESEARCH
Volume 25, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/s10965-018-1532-4
Keywords
Fuel cells; Functionalization of polymers; Anion exchange membranes; Nanocomposite
Categories
Funding
- South African National Research Foundation (NRF)
- University of Johannesburg and the Centre for Nanomaterials Science Research (CNSR)
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Composite anion exchange membranes (AEM) based on quaternized poly (phenylene) oxide and polysulfone blend (QPPO/PSF) were successfully fabricated and characterized for methanol alkaline fuel cell application. To make a composite AEM, increasing graphene oxide (GO) wt.% ratios was introduced in the polymer blend. The membrane properties were enhanced by the addition of GO in comparison to the bare QPPO/PSF blend. The addition of GO resulted to a higher ion exchange capacity (IEC) of 3.21 mmol.g(-1) and an ion conductivity increase of up to 63.67 mS.cm(-1) at 80 degrees C. The QPPO/PSF/2%GO composite membrane reached a peak power density of 112 mW.cm(-2), which is about five (5) times more than the parent QPPO membrane at room temperature. The above results indicate that QPPO/PSF/GO is a good candidate as an anion exchange membrane for alkaline fuel cell application.
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