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Novel Titanium Aluminum Carbide And Titanium Carbide Composite Hydrogen Storage Material And Preparation Method Thereof

wallpapers News 2020-11-13
The technical solution of the present invention is: a titanium aluminum carbide and titanium carbide composite hydrogen storage material, characterized in that: titanium aluminum carbide is a ternary compound, specifically Ti3AlC2 or Ti2AlC, the titanium carbide is TiCx, where 0.48≤x≤ 0.8, the mass ratio of titanium aluminum carbide in the composite hydrogen storage material is 2%-15%, and the rest is titanium carbide. The preparation method consists of the following steps:
 
(1) Raw material preparation: prepare the raw material aluminum powder and titanium carbide powder or titanium aluminum carbide powder and titanium carbide powder required for preparing the composite hydrogen storage material, the titanium aluminum carbide powder is a ternary compound, specifically Ti3AlC2 or Ti2AlC, The titanium carbide powder has a non-stoichiometric ratio TiCx, where 0.48≤x≤0.8. When the raw material is aluminum powder and titanium carbide powder, the mass ratio of aluminum powder is 0.3% to 3%, and the rest is titanium carbide powder; when the raw material is titanium carbide aluminum powder and titanium carbide powder, the mass ratio of titanium carbide aluminum powder is 2 %-15%, the rest is titanium carbide powder;
 
(2) Raw material mixing: mix aluminum powder and titanium carbide powder or titanium carbide aluminum powder and titanium carbide powder evenly;
 
(3) Ball milling: ball mill the aluminum powder and titanium carbide powder or the mixed powder of titanium carbide aluminum powder and titanium carbide powder in a high-energy ball mill for 3-8 hours;
 
(4) Compression molding: pressing the uniformly mixed mixed powder into the required shape;
 
(5) Sintering: Place the pressed raw materials in a sintering furnace. When the raw materials are aluminum powder and titanium carbide powder, heat to 950-1200°C for 3-8 hours. When the raw materials are titanium carbide aluminum powder and titanium carbide powder When heated to 600-950°C for 3-8 hours, and then cooled to room temperature with the furnace, a titanium aluminum carbide and titanium carbide composite hydrogen storage material is obtained.

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