Fuel battery, its catalyst layer and manufacturing method of said catalyst layer

Abstract

The invention provides a fuel battery catalyst layer, comprising a tubular carrier and catalyst formed on the surface of the tubular carrier, where the tubular carrier comprises nano tubular metal or conductive oxide, the catalyst is deposited on the surfaces of inner and outer walls of the nano tube. The invention also provides a method for manufacturing the catalyst layer and the fuel battery with the catalyst layer. The catalyst layer has a nano tublar structure, helpful to realize full contact between reacting gas and catalyst, thus strengthening the catalyst activity and raising the battery efficiency.

Description

【Technical field】 [0001] The invention relates to a catalyst layer of a fuel cell, in particular to a fuel cell with a catalyst carrier, its catalyst layer and a manufacturing method of the catalyst layer. 【Background technique】 [0002] A fuel cell is a power generation device that generates electrical energy through an electrochemical reaction. In order to speed up the electrochemical reaction, a catalyst layer is formed on the electrodes, and the catalyst is loaded on a carrier material. At present, the catalyst carriers of fuel cells are mostly made of materials with high surface area. For example, nano-scale precious metal powder is fully mixed with carbon materials such as carbon black or graphite with high surface area, and then coated on the electrolyte membrane after forming a gel, which can effectively disperse the nanometer size. Noble metals, which form the conductive catalyst layer of fuel cells, can improve catalyst performance and reduce costs. [0003] For e...

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Problems solved by technology

[0007] In order to solve the problem in the prior art that due to the insufficient performance of the catalyst carrier material, the flow of the fuel is blocked, and the contact between the catalyst and the fuel is insufficient, resulting in a decrease in the activity of the catalyst. Contact, fuel cell catalyst layer for increased catalyst activity

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