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Catalyst for fuel cell, method for preparing same, and membrane-electrode assembly comprising same

A technology of fuel cells and catalysts, applied in the direction of fuel cells, battery electrodes, electrical components, etc., can solve the problems of undeveloped, low-metal or alloy catalysts, etc., and achieve the effect of improving performance and durability, excellent performance and durability

Pending Publication Date: 2022-04-12
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Furthermore, no metal or alloy catalysts have been developed that can be prepared at relatively low cost with satisfactory performance and durability

Method used

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  • Catalyst for fuel cell, method for preparing same, and membrane-electrode assembly comprising same
  • Catalyst for fuel cell, method for preparing same, and membrane-electrode assembly comprising same
  • Catalyst for fuel cell, method for preparing same, and membrane-electrode assembly comprising same

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Experimental program
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Embodiment 1

[0086] 1 g of the PtCo / C catalyst (ie, the first catalyst) was dispersed in water to obtain a dispersion. In addition, 1.3gCuCl 2 dissolved in water to obtain a Cu precursor solution. The dispersion was uniformly mixed with the Cu precursor solution to obtain a mixed solution, and the mixed solution was dried to remove moisture to obtain a solid as a mixture of the PtCo / C catalyst and the Cu precursor. The solid was introduced into a tube furnace and heated at H 2 and N 2 Heat treatment at 250 ° C for 30 minutes in a mixed gas atmosphere to obtain a Cu-PtCo / C catalyst (hereinafter referred to as Cu-PtCo / C_H 2 catalyst).

Embodiment 2

[0088] except in NH 3 Except heat treatment in air atmosphere, obtain Cu-PtCo / C catalyst (hereinafter, this catalyst is referred to as Cu-PtCo / C_NH 3 catalyst).

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Abstract

Disclosed are a catalyst for a fuel cell having excellent performance and durability, a method for preparing the catalyst, and a membrane-electrode assembly comprising the catalyst. The catalyst for a fuel cell according to the present invention comprises: a support; and PtCo alloy particles supported on the support, in which the PtCo alloy particles include a transition metal doped or transition metal partially alloyed surface modified by at least one transition metal selected from the group consisting of V, Cr, Mn, Fe, Ni, Cu, W, and Mo, or a transition metal doped or transition metal partially alloyed inner region including the transition metal.

Description

technical field [0001] The present disclosure relates to a catalyst for a fuel cell, a method of preparing the catalyst, and a membrane-electrode assembly including the catalyst. More particularly, the present disclosure relates to a catalyst for a fuel cell having improved performance and durability, a method of preparing the catalyst, and a membrane-electrode assembly including the catalyst. Background technique [0002] Polymer Electrolyte Membrane Fuel Cells (PEMFC) generate electricity using a stacked structure of unit cells, each unit cell including a membrane-electrode assembly (MEA) and a separator (also called a "bipolar plate"), due to its high energy efficiency and Environmental friendliness attracts attention as next-generation energy that can replace fossil fuels. [0003] Membrane-electrode assemblies typically include an anode (also called "fuel electrode"), a cathode (also called "air electrode"), and a polymer electrolyte membrane positioned between them. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/92H01M8/1004
CPCY02P70/50Y02E60/50H01M4/926H01M4/925H01M4/921H01M4/8657H01M8/1004H01M2008/1095Y02E60/10H01M8/1018
Inventor 金正镐
Owner KOLON IND INC
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