CATALYST FOR FUEL CELL, FUEL CELL ELECTRODE, MEMBRANE ELECTRODE COMPLEX AND FUEL CELL

CATALYST FOR FUEL CELL, FUEL CELL ELECTRODE, MEMBRANE ELECTRODE COMPLEX AND FUEL CELL

PROBLEM TO BE SOLVED: To provide catalyst for a fuel cell containing high active performance for reducing poisons by intermediate products such as CO or/and CHO. SOLUTION: As a result of an examination in order to achieve above invention, the catalyst includes at least platinum. The catalyst is in a...

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Hauptverfasser: INOHARA MASAHIRO, KIDAI MASAYUKI
Format: Patent
Sprache:eng
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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 INOHARA MASAHIRO
KIDAI MASAYUKI
description PROBLEM TO BE SOLVED: To provide catalyst for a fuel cell containing high active performance for reducing poisons by intermediate products such as CO or/and CHO. SOLUTION: As a result of an examination in order to achieve above invention, the catalyst includes at least platinum. The catalyst is in a range from 65.1 to 67.3 degrees for a peak position of a maximum peak from 2θ=62 to 76 degrees in a diffraction pattern obtained by carrying out particle X-ray diffraction measurement, and/or in a range from 39.0 to 39.5 degrees for a peak position of a maximum peak from 2θ=36 to 44 degrees, and/or includes at least platinum and a second metal component. In the diffraction pattern obtained by a particle X-ray diffraction measurement, when a crystallite size is calculated by a peak of a (220) field origin, by using a catalyst having crystallite size smaller than 2.0 nm, poisoning by intermediate products can be reduced, so that, high active fuel cell catalyst can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title CATALYST FOR FUEL CELL, FUEL CELL ELECTRODE, MEMBRANE ELECTRODE COMPLEX AND FUEL CELL
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