Devrim, YılserBudak, YagmurDevrim, YilserEnergy Systems Engineering2024-07-052024-07-052020160360-31991879-348710.1016/j.ijhydene.2019.11.1732-s2.0-85076529956https://doi.org/10.1016/j.ijhydene.2019.11.173https://hdl.handle.net/20.500.14411/3183DEVRIM, YILSER/0000-0001-8430-0702; Budak, Yagmur/0000-0002-8443-1160High temperature Proton Exchange Membrane Fuel Cells (HT-PEMFC) have attracted the attention of researchers in recent years due to their advantages such as working with reformed gases, easy heat management and compatibility with micro-cogeneration systems. In this study, it is aimed to designed, manufactured and tested of the HT-PEMFC stack based on Polybenzimidazole/Graphene Oxide (PBI/GO) composite membranes. The micro-cogeneration application of the PBI/GO composite membrane based stack was investigated using a reformat gas mixture containing Hydrogen/Carbon Dioxide/Carbon Monoxide (H-2/CO2/CO). The prepared HT-PEMFC stack comprises 12 cells with 150 cm(2) active cell area. Thermo-oil based liquid cooling was used in the HT-PEMFC stack and cooling plates were used to prevent coolant leakage between the cells. As a result of HTPEMFC performance studies, maximum 546 W and 468 W power were obtained from PBI/ GO and PBI membranes based HT-PEMFC stacks respectively. The results demonstrate that introducing GO into the PBI membranes enhances the performance of HT-PEMFC technology and demonstrated the potential of the HT-PEMFC stack for use in micro cogeneration applications. It is also underlined that the developed PBI/GO composite membranes have the potential as an alternative to commercially available PBI membranes in the future. (c) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessHigh temperature proton exchangemembrane fuel cells (HT-PEMFC)PBIPBI/GOComposite membraneCogenerationArticleQ145603519835207WOS:000594531800008