A composite material of metal foam-carbon nanotube, the preparation method thereof and the use thereof

2:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 1, wherein the area of the substrate of polyurethane sponge described in step (1) is 5×5 cm2;
• and the said pre-treatment refers to the subsequent processes of treatments of chemical degreasing, deionized water-washing, potassium permanganate-coarsening, deionized water-washing, oxalic acid-reduction, deionized water-washing, sensitization and colloidal palladium-activation.

4:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 1, characterized in that said electroless plating solution containing metallic element refers to a nickel-containing electroless plating solution, a copper-containing electroless plating solution or a cobalt-containing electroless plating solution.

5:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 4, characterized in that said nickel-containing electroless plating solution refers to an electroless plating solution containing 30 g/L of NiSO4, 10 g/L of NaH2PO2, 35 g/L of Na3Cyt, and 50 g/L of Na3PO4;
• said copper-containing electroless plating solution refers to an electroless plating solution containing 10 g/L of CuSO4, 24 g/L of Na3Cyt, 3 g/L of NiSO4, 30 g/L of H3BO3, 10 g/L of NaOH and 30 g/L of NaH2PO2;
• said cobalt-containing electroless plating solution refers to an electroless plating solution containing 28 g/L of CoSO4, 25 g/L of NaH2PO2, 60 g/L of Na3Cyt and 30 g/L of H3BO3.

6:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 1, characterized in that said electroless plating reaction refers to the reaction being carried out at 45 to 80° C. for 0.5 to 2 hours;
• the mass of the metal foam catalyst produced by the electroless plating reaction is 40% to 200% of the mass of the substrate of polyurethane sponge.

7:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 1, characterized in that said raising temperature rate in step (2) is 10˜15° C./min;
• and the rate of introducing the mixture gas of acetylene and nitrogen is 50 to 100 mL/min.

8:

• A preparation method of a composite material of metal foam-carbon nanotube according to claim 1, characterized in that said mixture gas of acetylene and nitrogen is the mixture of nitrogen and acetylene in a volume ratio of 1:9.

9:

• A composite material of metal foam-carbon nanotube, prepared by the method according to claim 1.

10:

• The composite material of metal foam-carbon nanotube according to claim 9 for a fuel cell electro-catalysts or fuel cell electro-catalyst supports.