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Electrochemical preparation of gas diffusion electrodes for PEMFC

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F08%3A00020339" target="_blank" >RIV/60461373:22310/08:00020339 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Electrochemical preparation of gas diffusion electrodes for PEMFC

  • Original language description

    Subject of the present work is development of the electrochemical method for preparation of the gas diffusion electrodes (GDE). The attention has focused mainly on the incorporation of the proton conductor represented in this study by the NafionR into the electrode structure. Two concepts were followed. The first one consists in the cathodic deposition of the Pt metal on the commercial gas diffusion layer (GDL) by means of the cathodic potential pulses. In the next step such an electrode was impregnatedby the NafionR solution. The second concept is characterised by the reverse order of the technological steps, i.e. GDL was initially impregnated by the NafionR solution. Platinum catalyst was electrodeposited subsequently on the same way. Various NafionR loadings were tested. Pt particle size and layer morphology was analyzed by scanning electron microscopy. Prepared GDE were characterised in the laboratory O2/H2 PEMFC. The size of the platinum particles deposited falls in the range 50

  • Czech name

    Elektrochemická príprava plynově difuzních elektrod pro PEMFC

  • Czech description

    Byla studována metoda elektrochemické přípravy plynově difúzních elektrod pro palivové články typu PEM. Hlavní pozornost byla věnována způsobu zabudování protonového vodiče (Nafion) do struktury elektrody. Byly použity dva způsoby, při prvním byl Nafionnanášen na vrstvu již vyloučené platiny . Při druhém postupu byl podklad nejprve modifikován vrstvou ionomeru a na modifikovanou vrstvu byla vylučována platina. Byly použity různé navážky ionomeru. Připravené elektrody byly následně testovány.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CG - Electrochemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of 8th European Symposium on Electrochemical Engineering

  • ISBN

    978-80-02-02053-0

  • ISSN

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

  • Publisher name

    Ing. Jan Novosad, Procesní inženýrství

  • Place of publication

    Praha

  • Event location

    Praha

  • Event date

    Aug 24, 2008

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article