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Understanding the Degradation Mechanisms of Membrane-Electrode-Assembly for High Temperature PEMFCs and Optimization of the Individual Components

Objective

The state of the art high temperature PEM fuel cell technology is based on H3PO4 imbibed polymer electrolytes. The most challenging areas towards the optimization of this technology are: (i) the development of stable long lasting polymer structures with high ionic conductivity and (ii) the design and development of catalytic layers with novel structures and architectures aiming to more active and stable electrochemical interfaces with minimal Pt corrosion. In this respect the objective of the present proposal is to understand the functional operation and degradation mechanisms of high temperature H3PO4 imbibed PEM and its electrochemical interface. The degradation mechanisms will be thoroughly studied and be focused on low loading Pt or nanostructured alloyed Pt electrocatalysts and catalytic layers, which will be supported on finely dispersed or structurally organized modified carbon supports (nanotubes, pyrolytic carbon). A stable electrocatalytic layer with full metal electrocatalyst utilization at the electrode/electrolyte interface can thus be achieved. The high temperature PEM membrane electrode assembly (MEA) will be based on a) PBI and variants as control group and b) the advanced state of the art MEAs based on aromatic polyethers bearing pyridine units. These MEAs have been developed optimized and tested at temperatures up to 200oC, where they exhibit stable and efficient operation. In the present proposal they will be studied and tested in single fuel cells with regards to their operating conditions and long term stability aiming to the development of a series of diagnostic tests that will lead in the design and development of an accelerated test and prediction tool for the MEA’s performance. If we can really understand the fundamentals of the failure mechanisms, then we can use that information to guide the development of new materials or we can develop system approaches to mitigate these failures.
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Coordinator

ADVANCED ENERGY TECHNOLOGIES AE EREUNAS & ANAPTYXIS YLIKON & PROIONTONANANEOSIMON PIGON ENERGEIAS & SYNAFON SYMVOULEFTIKON Y PIRESION*ADVEN

Address

Kifisias 44 Ktiriou B
15125 Athens

Greece

Activity type

Private for-profit entities (excluding Higher or Secondary Education Establishments)

EU Contribution

€ 207 400

Administrative Contact

Stylianos Neophytides (Dr.)

Participants (7)

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IDRYMA TECHNOLOGIAS KAI EREVNAS

Greece

EU Contribution

€ 242 350

PAUL SCHERRER INSTITUT

Switzerland

EU Contribution

€ 226 888

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 222 507

FUMATECH BWT GMBH

Germany

EU Contribution

€ 184 456

VYSOKA SKOLA CHEMICKO-TECHNOLOGICKA V PRAZE

Czechia

EU Contribution

€ 149 905

DLR-INSTITUT FUR VERNETZTE ENERGIESYSTEME EV

Germany

EU Contribution

€ 209 730

TECHNISCHE UNIVERSITAT DARMSTADT

Germany

EU Contribution

€ 195 750

Project information

Grant agreement ID: 245156

Status

Closed project

  • Start date

    1 January 2010

  • End date

    31 December 2012

Funded under:

FP7-JTI

  • Overall budget:

    € 3 189 918,80

  • EU contribution

    € 1 638 986

Coordinated by:

ADVANCED ENERGY TECHNOLOGIES AE EREUNAS & ANAPTYXIS YLIKON & PROIONTONANANEOSIMON PIGON ENERGEIAS & SYNAFON SYMVOULEFTIKON Y PIRESION*ADVEN

Greece