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  • 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 impregnated by 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 - 400 nm dependi
  • 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 impregnated by 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 - 400 nm dependi (en)
  • 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 Nafion nanášen 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. (cs)
Title
  • Electrochemical preparation of gas diffusion electrodes for PEMFC
  • Electrochemical preparation of gas diffusion electrodes for PEMFC (en)
  • Elektrochemická príprava plynově difuzních elektrod pro PEMFC (cs)
skos:prefLabel
  • Electrochemical preparation of gas diffusion electrodes for PEMFC
  • Electrochemical preparation of gas diffusion electrodes for PEMFC (en)
  • Elektrochemická príprava plynově difuzních elektrod pro PEMFC (cs)
skos:notation
  • RIV/60461373:22310/08:00020339!RIV09-MSM-22310___
http://linked.open...avai/riv/aktivita
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  • Z(MSM6046137301)
http://linked.open...vai/riv/dodaniDat
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  • 365782
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  • RIV/60461373:22310/08:00020339
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  • electrochemical deposition; gas diffusion electrode; PEM fuel cell (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [F74586424AAB]
http://linked.open...v/mistoKonaniAkce
  • Praha
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  • Praha
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  • Proceedings of 8th European Symposium on Electrochemical Engineering
http://linked.open...in/vavai/riv/obor
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  • Mazúr, Petr
  • Paidar, Martin
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Ing. Jan Novosad, Procesní inženýrství
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  • 978-80-02-02053-0
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  • 22310
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