Preparation method of nickel-graphene complex phase

A graphene and graphene nanosheet technology, applied in electrolytic coatings, coatings, etc., can solve problems such as oxygen functional groups cannot be completely reduced, metal-graphene complex phase influence, limiting graphene performance, etc., to achieve complex phase Good mechanical properties and corrosion resistance, wide application range, avoid the effect of reduction process

Inactive Publication Date: 2014-07-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the reduction effect of GO is limited by the nickel matrix, which cannot reduce GO to the maximum extent, resulting in the incomplete reduction of the oxygen functional groups in the final nickel-graphene composite phase, which will greatly limit the gra

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] 1) Add NaOH, Na 3 PO 4 , Na 2 CO 3 And Na 2 SiO 3 According to the mass ratio of 3:3:3:1, mix and configure into an alkaline solution, wash the square iron pieces with the above alkaline solution and deionized water in turn, then activate them in hydrochloric acid with a molar concentration of 30% for 10 minutes, and then use deionized water rinse;

[0017] 2) Dissolve nickel sulfate and nickel chloride in water and mix them to obtain a mixed solution; dissolve boric acid and sodium lauryl sulfate in water, and add them to the mixed solution of nickel sulfate and nickel chloride successively, and stir to obtain nickel Plating solution: Nickel sulfate in the nickel plating solution is 290g / L, nickel chloride is 50g / L, boric acid is 40g / L, and sodium lauryl sulfate is 0.3g / L;

[0018] 3) Wet the single-layer graphene nanosheets with a small amount of the nickel plating solution configured in step 2) and sonicate it, and then add it to the remaining nickel pla...

Example Embodiment

[0021] Example 2

[0022] 1) Add NaOH, Na 3 PO 4 , Na 2 CO 3 And Na 2 SiO 3 According to the mass ratio of 3:3:3:1, mix and configure into an alkaline solution, wash the square stainless steel sheet with the above alkaline solution and deionized water in turn, then activate it in hydrochloric acid with a molar concentration of 5% for 5 minutes, and then rinse with ionized water ;

[0023] 2) Dissolve nickel sulfate and nickel chloride in water and mix them to obtain a mixed solution; dissolve boric acid and sodium lauryl sulfate in water, and add them to the mixed solution of nickel sulfate and nickel chloride successively, and stir to obtain nickel Plating solution: The nickel sulfate in the nickel plating solution is 240g / L, nickel chloride is 45g / L, boric acid is 30g / L, and sodium lauryl sulfate is 1.5g / L;

[0024] 3) Wet the multilayer graphene nanosheets with a small amount of the nickel plating solution configured in step 2) and sonicate them, and then add them to the remainin...

Example Embodiment

[0027] Example 3

[0028] 1) Add NaOH, Na 3 PO 4 , Na 2 CO 3 And Na 2 SiO 3 According to the mass ratio of 3:3:3:1, mix and configure into an alkaline solution, wash the round iron pieces with the above alkaline solution and deionized water in turn, then activate them in hydrochloric acid with a molar concentration of 30% for 5 minutes, and then deionize water rinse;

[0029] 2) Dissolve nickel sulfate and nickel chloride in water and mix them to obtain a mixed solution; dissolve boric acid and sodium lauryl sulfate in water, and add them to the mixed solution of nickel sulfate and nickel chloride successively, and stir to obtain nickel Plating bath: The nickel sulfate in the nickel bath is 300g / L, nickel chloride is 40g / L, boric acid is 50g / L, and sodium lauryl sulfate is 0.5g / L;

[0030] 3) Wet the single-layer graphene nanosheets with a small amount of the nickel plating solution configured in step 2) and sonicate it, and then add it to the remaining nickel plating solution. The ...

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Abstract

The invention discloses a preparation method of a nickel-graphene complex phase, which comprises the following steps: cleaning a base plate with an alkali solution, and activating with hydrochloric acid; 2) preparing nickel sulfate, nickelous chloride, boric acid and a surfactant into a nickel plating solution; 3) adding graphene nanosheets into the nickel plating solution to obtain an electroplating solution containing graphene nanosheets; and 4) electroplating in the electroplating solution by using a nickel sheet as an anode and the base plate as a cathode to obtain the nickel-graphene complex phase. The graphene and nickel are directly compounded, thereby avoiding the GO (graphene oxide) reduction process in the traditional method. The method has the advantages of simple technique, favorable controllability and wide application range; and the prepared nickel-graphene complex phase has favorable mechanical properties and corrosion resistance.

Description

technical field [0001] The invention relates to a preparation method of nickel-graphene composite phase. Background technique [0002] Adding the second phase to the nickel coating has been studied for a long time to improve the hardness, wear resistance and corrosion resistance of steel materials through the effects of grain strengthening and dispersion strengthening, mainly through the combination of the second phase with excellent mechanical properties and electroplating The nickel layer is compounded, so that the performance of the second phase is reflected in the nickel matrix, thereby obtaining a metal composite phase with excellent performance, and a nickel composite phase with good mechanical properties and corrosion resistance. [0003] Most of the existing nickel-graphene composite phases are composed of graphene oxide (GO) and nickel, and then the GO is reduced to graphene to obtain the nickel-graphene composite phase. First of all, the reduction effect of GO is ...

Claims

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Application Information

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IPC IPC(8): C25D15/00
Inventor 徐杨任招娣骆季奎俞滨
Owner ZHEJIANG UNIV
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