Elektrochemická príprava plynově difuzních elektrod pro PEMFC

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical preparation of gas diffusion electrodes for PEMFC

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Electrochemical preparation of gas diffusion electrodes for PEMFC

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 8th European Symposium on Electrochemical Engineering

ISBN

978-80-02-02053-0

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

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Název nakladatele

Ing. Jan Novosad, Procesní inženýrství

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

24. 8. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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