Devrim, YılserDevrim, YilserArica, Elif DamlaEnergy Systems Engineering2024-07-052024-07-052019470360-31991879-348710.1016/j.ijhydene.2019.01.0512-s2.0-85060757044https://doi.org/10.1016/j.ijhydene.2019.01.051https://hdl.handle.net/20.500.14411/3296DEVRIM, YILSER/0000-0001-8430-0702In the literature, studies on platinum catalysts deposited on multi-walled carbon nanotube (Pt/MWCNT) have been mostly focused on low temperature fuel cell (LT-PEMFC) applications. In this study, we focus the synthesis and characterization of high temperature fuel cell (HT-PEMFC) performance of Pt/MWCNT in short and long term. The structural properties of the Pt/MWCNT electrocatalyst were analyzed by XRD, TGA, SEM and TEM measurements. The Pt/MWCNTs were also characterized by electrochemical measurements for durability estimation. Laboratory scale MEA with Pt/MWCNT was prepared by ultrasonic coating technique and has been tested in situ in single HT-PEMFC. Performance curves in dry Hydrogen/Air system were obtained that demonstrated performance comparable to commercial catalysts in that HT-PEMFC. The characterizations specified that the electrocatalytic and HT-PEMFC performance of the Pt/MWCNT catalysts are higher power density (0.360 W/cm(2)) than Pt/C (0.310 W/cm(2)) at 160 degrees C. The results obtained show that the synthesized catalysts are suitable for high temperature applications. In addition, the stability studies of MEAs prepared with Pt/MWCNT catalyst were performed by AST tests and compared with Pt/C based MEA. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessProton exchange membrane fuel cellHigh temperatureMulti walled carbon nanotubeCatalystMicrowave synthesisConference ObjectQ144341895118966WOS:000477092000030