Ferrotitanium alloy hydrogen storage material used for fuel cell car and preparing method

Abstract

The invention discloses a ferrotitanium alloy hydrogen storage material used for a fuel cell car and a preparing method. The ferrotitanium alloy hydrogen storage material is prepared through the following steps that a, a water solution containing iron salt and titanium salt, a reducing agent, a pore-forming agent and a flocculating agent are added into ethyl orthosilicate, after the stirring reaction, standing and aging are carried out, and a gelatinous material is made; b, the gelatinous material and doped metal powder are mixed for carrying out low-temperature heat treatment, and through subsequent forming, the ferrotitanium alloy hydrogen storage material is obtained. The method has following beneficial effects that silicon dioxide evenly wraps the ferrotitanium alloy surface, the activity and the stability of an alloy material can be obviously improved, the material is large in hydrogen storage amount, the service life is long, the whole preparing process is simple, the cost is low, and the ferrotitanium alloy hydrogen storage material used for the fuel cell car has the wide application prospect.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to the preparation of hydrogen storage materials, in particular to a ferro-titanium alloy hydrogen storage material for fuel cell vehicles and a preparation method. Background technique [0002] Hydrogen vehicles use hydrogen as the main energy for moving vehicles, using fuel cells and electric motors to replace general engines, that is, hydrogen fuel cells. The principle is to input hydrogen into the fuel cell, and the electrons of the hydrogen atoms are blocked by the proton exchange membrane, and then conduct from the negative electrode to the positive electrode through an external circuit, and become electric energy to drive the motor; however, the protons can be combined with oxygen through the proton exchange membrane to form pure water mist and discharged. Hydrogen can be produced in large quantities from electrolysis of water and coal gasification, and does not require major modifi...

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Problems solved by technology

[0008] It can be seen that in the metal hydrogen storage materials in the prior art, rare earth metals and transition metals are expensive and have low reserves, and when iron-titanium alloy materials are used, because the use environment is relatively rough and the content of impurity gases is relatively large, it is easy to The surface of the alloy is oxidized and the activation is difficult. At the same time, the anti-poisoning performance of gaseous impurities is poor, and the activation and stability of titanium-iron hydrogen storage alloy are poor, which seriously affects the service life and other problems.

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