Příprava kompozitního materiálu na bázi membrány Nafion a polypyrrolu pro potencální použití v palivovém článku typu PEM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F05%3A00013785" target="_blank" >RIV/60461373:22310/05:00013785 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of a novel composite material based on a Nafion membrane and polypyrrole for potential application in a PEM fuel cell

Popis výsledku v původním jazyce

The process of embedding polypyrrole (PPy) on the surface of a Nafion# membrane was studied. Three methods of PPy synthesis directly on the membrane surface were compared. The diffusion method based on the separation of monomer and oxidant (peroxidisulphate) solutions by the membrane to be modified is proposed as the most promising one. The monomer diffuses through the membrane to the oxidant side, where it is polymerized. In this case sulphate is incorporated into the film as a counter-ion. PPy film prepared in this way adheres well to the Nafion# surface and shows promising electrochemical activity. The permeability of the composite for monomer in comparison to self standing Nafion# film is reduced significantly. This may be important for the potential application of this composite, especially in a direct methanol fuel cell, as an alternative membrane electrode assembly (MEA), particularly with regard to the currently used MEA's permeability for fuel.

Název v anglickém jazyce

Preparation of a novel composite material based on a Nafion membrane and polypyrrole for potential application in a PEM fuel cell

Popis výsledku anglicky

The process of embedding polypyrrole (PPy) on the surface of a Nafion# membrane was studied. Three methods of PPy synthesis directly on the membrane surface were compared. The diffusion method based on the separation of monomer and oxidant (peroxidisulphate) solutions by the membrane to be modified is proposed as the most promising one. The monomer diffuses through the membrane to the oxidant side, where it is polymerized. In this case sulphate is incorporated into the film as a counter-ion. PPy film prepared in this way adheres well to the Nafion# surface and shows promising electrochemical activity. The permeability of the composite for monomer in comparison to self standing Nafion# film is reduced significantly. This may be important for the potential application of this composite, especially in a direct methanol fuel cell, as an alternative membrane electrode assembly (MEA), particularly with regard to the currently used MEA's permeability for fuel.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F02%2F0664" target="_blank" >GA104/02/0664: Studie alternativních anod pro nízkoteplotní palivové články na bázi vodivých polymerů modifikovaných platinou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Electrochemistry

ISSN

0021-891X

e-ISSN

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Svazek periodika

35

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

991-997

Kód UT WoS článku

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EID výsledku v databázi Scopus

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