Process for preparing proton exchange film fuel cell multi component catalyst

Abstract

The invention relates to the field of fuel cell material preparation, in particular a process for preparing multi-component catalyst for proton interchange film fuel cells through water heating method which comprises, charging carrying agent, one or two noble metallic compounds, one or two rare earth metallic oxides, and deionized water into air-tight container in inert atmosphere under the condition of 110-300 deg. C, pressure 0.3-4 MPa for reaction 1-24 hours, cooling down and adding reduction agent, deacidizing 1-10 hours at 100-200 deg. C, washing, filtering and drying to obtain the multicomponent catalyst.

Description

Technical field [0001] The invention belongs to the technical scope of fuel cell material preparation, and particularly relates to a method for preparing a multi-element catalyst for a proton exchange membrane fuel cell using a hydrothermal method. Background technique [0002] At present, precious metals such as platinum (Pt) and ruthenium (Ru) are used as proton exchange membrane fuel cell (PEMFC) electrode catalysts, which have high cost and lack of resources, which greatly limits the speed of the practical use of fuel cells. In order to reduce the amount of precious metals and improve the dispersibility of precious metals, people use various preparation methods, such as sol-gel method, co-impregnation, co-deposition, colloid method, etc. to provide more specific surface area for the contact of metal particles with the carrier, and reduce the electrode unit area. The amount of Pt used to improve the utilization rate of Pt. [0003] The hydrothermal method is a wet chemical met...

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Problems solved by technology

[0002] At present, noble metals such as platinum (Pt) and ruthenium (Ru) are used as electrode catalysts for proton exchange membrane fuel cells (PEMFC), and the cost is high and resources are scarce, which greatly limits the practical speed of fuel cells.