ELECTRODE CATALYST LAYER FOR FUEL CELL, AND SOLID POLYMER-TYPE FUEL CELL COMPRISING SAID ELECTRODE CATALYST LAYER

ELECTRODE CATALYST LAYER FOR FUEL CELL, AND SOLID POLYMER-TYPE FUEL CELL COMPRISING SAID ELECTRODE CATALYST LAYER

An electrode catalyst layer for a fuel cell includes a catalyst/support composite including a support and a catalyst supported thereon. The support contains a titanium oxide. The surface of the catalyst/support composite has an oxide of at least one element selected from the group consisting of niob...

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Hauptverfasser: MIKI, Joji, WATANABE, Haruka, KITABATAKE, Takuya
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Sprache:eng ; fre ; ger
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator MIKI, Joji
WATANABE, Haruka
KITABATAKE, Takuya
description An electrode catalyst layer for a fuel cell includes a catalyst/support composite including a support and a catalyst supported thereon. The support contains a titanium oxide. The surface of the catalyst/support composite has an oxide of at least one element selected from the group consisting of niobium, tantalum, zirconium, and silicon. The ratio A2/A1 is from 0.35 to 1.70, wherein A1 is the atomic ratio of titanium on a surface of the catalyst layer and A2 is the atomic ratio of a total of niobium, tantalum, zirconium, and silicon on the surface of the catalyst layer, A1 and A2 being measured by X-ray photoelectron spectroscopy. The titanium oxide preferably has a composition TiOx (0.5 ≤ x < 2).
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title ELECTRODE CATALYST LAYER FOR FUEL CELL, AND SOLID POLYMER-TYPE FUEL CELL COMPRISING SAID ELECTRODE CATALYST LAYER
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