Fuel cell electrode catalyst and manufacturing method thereof, supporting electrode of fuel cell electrode catalyst, and fuel cell

A technology for electrode catalysts and fuel cells, applied in fuel cells, battery electrodes, chemical instruments and methods, etc., can solve the problems of reduced catalyst activity and reduced usage of PtCo alloys

Inactive Publication Date: 2015-02-11
SUZUKI MOTOR CORP
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although it has the advantage of reducing the cost, it has the disadvantage of reducing the catalyst activity, so it is assumed that it can only be set to Pt:Co=1:1 even at the maximum.
[0011] That is, in the actual situation of PtCo / C catalysts, it is not possible to significantly reduce the amount of Pt used in the PtCo alloy and obtain the desired catalytic activity.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel cell electrode catalyst and manufacturing method thereof, supporting electrode of fuel cell electrode catalyst, and fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The method for producing an electrode catalyst for a fuel cell of the present invention is carried out, and the mass activity of the obtained catalyst is determined.

[0070] In the case where the noble metal is platinum (Pt) and the base metal is cobalt (Co), by adjusting the feeding amount of the platinum precursor and the cobalt precursor, the molar ratio "Pt:Co=1:X, Prepare PtCo / C alloy catalyst in the range of X=1~9”.

[0071] Specifically, the total amount of the loading of Pt+Co relative to carbon (C) was fixed at 30 wt%, and the feeding amount of each precursor (platinum precursor and cobalt precursor) was changed according to the molar ratio, while Preparation of PtCo / C alloy catalyst.

[0072] Preparation of PtCo / C Alloy Catalyst

[0073] The procedure of an example in which a PtCo / C alloy catalyst is prepared in a molar ratio (Pt:Co=1:7) is shown below.

[0074] Platinum hexahydroxide nitric acid solution (manufactured by Tanaka Kizoku Co., Ltd.) with a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a fuel cell electrode catalyst capable of greatly reducing the use of Pt in PtCo alloy and obtaining PtCo / C which can achieve a mass activity equal to that of a Pt / C catalyst or above, and a manufacturing method thereof, a supporting electrode of the fuel cell electrode catalyst, and a fuel cell. The fuel cell electrode catalyst supports the alloy on a carbon support, the alloy comprises a noble metal and a base metal, wherein the molar ratio of the noble metal to the base metal of the above alloy, referring to the ratio of the base metal / the noble metal is set as 4-9.

Description

technical field [0001] The present invention relates to an electrode catalyst for a fuel cell and a manufacturing method thereof, a catalyst carrying electrode for a fuel cell, and a fuel cell. Background technique [0002] Solid polymer fuel cells (PEFC: polymer electrolyte fuel cells) using polymer materials as electrolytes have high output and can be easily miniaturized, so they are mainly used in vehicle power (for example, fuel cell vehicles) and stationary power supplies. In recent years, various researches and developments aimed at further improving the performance of PEFC have been conducted. [0003] Currently, a Pt / C catalyst in which platinum (Pt) is supported on a carbon (C) support as a carbon material is the mainstream for an electrode catalyst for PEFC. However, platinum exhibits high catalyst performance, but on the other hand is a rare and expensive noble metal, so in order to manufacture PEFC at a lower cost, it is sought to reduce the usage amount of expe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/92H01M4/86
CPCH01M4/96H01M4/90H01M4/88H01M4/921H01M4/926B01J21/18B01J23/8913H01M4/8803H01M4/8882H01M2008/1095Y02E60/50
Inventor 伊藤裕也福永聪洋
Owner SUZUKI MOTOR CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap