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Chemical nickel-plating graphene preparation method

A technology of electroless nickel plating and graphene, applied in the field of materials, can solve the problems of uneven plating, high cost, poor bonding, etc., and achieve the effects of smooth and smooth surface, uniform thickness and simple preparation method.

Active Publication Date: 2013-10-23
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of electroless nickel plating on difficult-to-plate substrates still needs to be improved, especially the non-porous and thin coating process of metals still faces the shortcomings of uneven coating, poor bonding and high cost.

Method used

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  • Chemical nickel-plating graphene preparation method
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  • Chemical nickel-plating graphene preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] ①Coarsening: Take 2g of graphene powder, add 15mL of ethanol and 60mL of 20% NaOH solution, ultrasonically disperse at 40°C for 30min, separate by suction filtration, then wash repeatedly with distilled water, and set aside.

[0029]②Sensitization: add 40mL of HCl with a concentration of 20mL / L and SnCl of 40g / L to 1g of coarsened graphene powder 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed several times with distilled water, and set aside.

[0030] ③Activation: At room temperature, take 1g of sensitized graphene powder and add it to 60mL of HCl with a concentration of 20mL / L and PdCl with a concentration of 0.5g / L 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed with distilled water, and set aside.

[0031] ④Reduction: At room temperature, weigh 1g of activated graphene powder, add 75mL NaH with a concentration of 40g / L 2 PO 2 ·H 2 O solution was stirred for 35 min, separated, washed with distilled water u...

Embodiment 2

[0038] ①Coarsening: Take 2g of graphene powder, add 15mL of ethanol and 60mL of 20% NaOH solution, ultrasonically disperse at 40°C for 30min, separate by suction filtration, then wash repeatedly with distilled water, and set aside.

[0039] ②Sensitization: add 40mL of HCl with a concentration of 15mL / L and SnCl of 30g / L to 1g of the coarsened graphene powder 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed several times with distilled water, and set aside.

[0040] ③Activation: At room temperature, take 1g of sensitized graphene powder and add it to 60mL of HCl with a concentration of 20mL / L and PdCl with a concentration of 0.5g / L 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed with distilled water, and set aside.

[0041] ④ Reduction: At room temperature, weigh 1 g of activated graphene powder, add 75 mL of 25 g / L sodium borohydride solution, stir for 35 min, separate, wash with distilled water until neutral, and set a...

Embodiment 3

[0045] ①Coarsening: Take 2g of graphene powder, add 15mL of ethanol and 60mL of 30% NaOH solution, ultrasonically disperse at 40°C for 30min, separate by suction filtration, then wash repeatedly with distilled water, and set aside.

[0046] ②Sensitization: Add 40mL of 20mL / L HCl and 20g / L SnCl to 1g of coarsened graphene powder 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed several times with distilled water, and set aside.

[0047] ③Activation: At room temperature, take 1g of sensitized graphene powder and add it to 60mL of 20mL / L HCl and 0.4g / L PdCl 2 The mixture was ultrasonically dispersed for 30 minutes, separated, washed with distilled water, and set aside.

[0048] ④Reduction: At room temperature, weigh 1g of activated graphene powder, add 75mL NaH with a concentration of 40g / L 2 PO 2 ·H 2 O solution was stirred for 35 min, separated, washed with distilled water until neutral, and set aside.

[0049] ⑤ Nickel plating: prepare 50mL of N...

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Abstract

The invention provides a chemical nickel-plating graphene preparation method and particularly provides a process method for improving the performance of graphene by nickeling the graphene. Chemical nickel-plating graphene is prepared by coarsening, sensitizing, activating, reducing, nickelizing and refining the graphene. A coating is added to the graphene by adopting a chemical nickel-plating technology. The preparation method is simple and can be used for continuous production. The prepared graphene coating is uniform in thickness and voidless and has a bright, clean and smooth surface.

Description

technical field [0001] The invention relates to the field of materials, in particular to a preparation method of electroless nickel-plated graphene. Background technique [0002] Graphene is made of carbon atoms with sp 2 A new carbonaceous material in which a single layer of hybridized carbon atoms is tightly packed into a two-dimensional honeycomb lattice structure (Novoselov K. S., Geim A. K., Morozov S. V., et al. Electric field effect in atomically thin carbon films[J]. Science, 2004, 306(5696): 666-669.), whose basic structural unit is the most stable benzene six-membered ring in organic materials. Graphene is the thinnest two-dimensional material in the world, with a thickness of only 0.35nm; its strength is the highest among tested materials (Lee C. G., Wei X. D., Kysar J .W., et al. Measurement of the elastic properties and intrinsic strength of monolayer graphene [J].Science, 2008, 321:385-388.), up to 130GPa, more than 100 times that of steel; its carrier mobili...

Claims

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Application Information

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IPC IPC(8): C23C18/18C23C18/36C04B35/628
Inventor 夏燎原邓凌峰余开明胡云楚
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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