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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus

IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

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Volume 227, Issue 5


Electrocatalyst–Membrane Interface and Fuel Cell Performance with Sulfonated PolyEtherEtherKetone as Ionomer

Francesco Arena / Jens Mitzel / Rolf Hempelmann
Published Online: 2013-02-11 | DOI: https://doi.org/10.1524/zpch.2013.0346


The performance of Polymer Electrolyte Membrane Fuel Cells (PEM-FCs) is directly related to the interfacial resistance between the membrane and Gas Diffusion Electrodes (GDEs), the catalyst availability in the 3-phase zone and the micro structure of the catalyst containing porous layer. Therefore we have deposited a hydrophobic porous layer, containing Sulfonated PolyEtherEtherKetone (SPEEK), onto a Gas Diffusion Layer (GDL), we have electrodeposited Pt electrocatalysts, and in this way we have prepared GDEs particularly suited for fuel cells with SPEEK as membrane (as an alternative to Nafion as the standard membrane material). High degree of catalyst utilization as well as availability is assured by our Pulsed Potentiostatic catalyst ElectroDeposition method (PPED) using a Hydrogen Depolarized Anode (HDA). Characterization of the prepared GDEs containing SPEEK is done viain-situ and ex-situ electrochemical techniques, X-ray diffraction and electron microscopy. The fuel cell performance is evident from polarization curves recorded at different temperatures and at different relative humidity of the reactant gases.

Keywords: Polymer Electrolyte Fuel Cell; Sulfonated Polyetheretherketone; SPEEK; Pulsed Potentiostatic Electrodeposition; Membrane Electrode Interface

About the article

* Correspondence address: Saarland University, Physical Chemistry, Campus B22, 66123 Saarbrücken, Deutschland,

Published Online: 2013-02-11

Published in Print: 2013-05-01

Citation Information: Zeitschrift für Physikalische Chemie, Volume 227, Issue 5, Pages 615–626, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2013.0346.

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