Development of Palladium and Platinum based Membrane Electrode Assemblies and Performance Characterization in the Alkaline Direct Ethanol Fuel Cell

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

Alkaline direct ethanol fuel cells (ADEFCs) have gained much attention in the last years due to their use of alternative energy sources. Commercial carbon supported palladium and platinum catalysts were ex-situ characterized by means of cyclic voltammetry experiments for their application in ADEFCs. The activity for the ethanol oxidation reaction (EOR) of the Pd/C catalyst was analyzed and an electrochemical active surface area (ECSA) of 411 cm2 mg-1, an onset potential of 0.255 V and a maximum current density for the forward scan of 126 mA cm-2 was examined. In addition, the performance of the Pt/C catalyst for the oxygen reduction reaction (ORR) was investigated resulting in an onset potential of 0.95 V and a limiting current density of ‑3.68 mA cm‑2 at 2000 rpm. Moreover, in-situ characterization in a self-designed ADEFC was performed. Therefore, a membrane electrode assembly (MEA) was developed using the Pt/C catalyst as active cathode material, Pd/C as active anode material and a commercial fumasep® FAA-3-PK-130 as anion-exchange membrane. The results of the single cell tests showed that a humidified oxygen flow rate of 20 mL min-1 and an ethanol fuel flow rate of 200 mL min-1 are most optimal for a good performance of the fuel cell. A maximum power density of 0.4 mW cm-2 was achieved.
Original languageEnglish
Title of host publicationProceedings of the 16th Minisymposium Verfahrenstechnik and 7th Partikelforum (TU Wien, Sept. 21/22, 2020)
Number of pages4
DOIs
Publication statusPublished - 2020
Event16. Minisymposium Verfahrenstechnik & 7. Partikelforum - TU Wien, Inst. of Chemical Engineering, Virtuell, Austria
Duration: 21 Sep 202022 Sep 2020
http://www.chemical-engineering.at/minisymposium/

Conference

Conference16. Minisymposium Verfahrenstechnik & 7. Partikelforum
CountryAustria
CityVirtuell
Period21/09/2022/09/20
Internet address

Fields of Expertise

  • Mobility & Production

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