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 in particular relates to a preparation method of a multi-component catalyst for a proton exchange membrane fuel cell using a hydrothermal method. Background technique [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. In order to reduce the amount of precious metals and improve the dispersion of precious metals, people use various preparation methods, such as sol-gel method, co-impregnation, co-deposition, colloidal method, etc. to provide more specific surface area for the contact between metal particles and the carrier, and reduce the electrode unit area. The amount of Pt used on the screen increases the utilization rate of Pt. [0003] The hydrothermal method is...

AI Technical Summary

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.