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Preparation method of graphene/polyaniline composite anode

A composite anode and polyaniline technology, applied to electrodes, devices for coating liquid on the surface, conductive coatings, etc., can solve the problems of high production costs and achieve low cost, stable performance, and simple processes

Inactive Publication Date: 2014-01-01
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional coated electrode is to coat metal oxides on the surface of metal titanium. Metal oxides are mostly noble metals, and the production cost is very high. Therefore, it is meaningful to develop insoluble anodes with low cost and stable performance to replace expensive coated electrodes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A method for preparing a graphene / polyaniline composite anode is characterized in that: after mixing 1g graphene, 10g aniline, and 70mL of 2mol / L hydrochloric acid, add 1g of ammonium persulfate, and stir and react for 3 hours at 0°C. The product was filtered and washed with 3% hydrochloric acid and distilled water three times each, dried at 80°C and ground to scales. The ground product is mixed with the binder PVDF and NMP at a ratio of 70:20:10, then ultrasonically oscillated for 30 minutes, stirred until viscous, and the electrode coating material is coated on the surface of the titanium plate by the pulling method and heated at 130°C. The composite anode was prepared by drying for 5 hours, and then pulling and drying for 10 times. The prepared anode is used for electroplating tin, and the performance of the composite anode is stable.

Embodiment 2

[0014] A method for preparing a graphene / polyaniline composite anode is characterized in that: 0.5g of graphene, 8g of aniline, and 40mL of 2mol / L hydrochloric acid are mixed uniformly, then 0.5g of ammonium persulfate is added, and the reaction is stirred at 3°C ​​for 2 hours, The product was filtered and washed with 3% hydrochloric acid and distilled water three times each, dried at 80°C and ground to scales. After grinding, the product is mixed with the binder epoxy resin and the solvent ethyl formate in a ratio of 70:20:10, then ultrasonically oscillated for 30 minutes, stirred until viscous, and the electrode coating material is coated on the surface of the titanium plate by pulling method After drying at 150°C for 4 hours, the electrode was prepared by pulling and drying 15 times, and the anode was used for electrogalvanizing, and the performance of the composite anode was stable.

Embodiment 3

[0016] A method for preparing a graphene / polyaniline composite anode, which is characterized in that: 0.5g of graphene, 8g of aniline, and 40mL of 2mol / L hydrochloric acid are mixed uniformly, then 0.5g of ammonium persulfate is added, and the mixture is stirred and reacted for 1 hour at 4°C. The product was filtered and washed with 3% hydrochloric acid and distilled water three times each, dried at 80°C and ground to scales. The ratio of active material, adhesive and organic solvent is 80:15:5. After mixing, ultrasonic vibration treatment is performed for 30 minutes, stirred until viscous, and the electrode coating material is coated on the surface of the titanium plate by pulling method and heated at 120 After drying at ℃ for 6 hours, the electrode was prepared by pulling and drying for 5 times. The prepared anode is used for chromium electroplating, and the performance of the composite anode is stable.

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Abstract

The invention relates to a preparation method of a graphene / polyaniline composite anode. The preparation method comprises the following steps: uniformly mixing 1-20g of graphene, 50-150g of aniline and 500-1000ml of 2mol / L hydrochloric acid, then adding 1-10g of ammonium persulfate, stirring and reacting for 1-3h at the temperature of 0-4 DEG C, respectively filtering and washing the reaction product with 3% by weight of hydrochloric acid and distilled water for three times respectively, drying at the temperature of 80 DEG C, grinding into scales, mixing the ground product with an adhesive and an organic solvent at a ratio of 70: 20: 10-80, then performing ultrasonic vibration treatment for 30min, stirring till the mixture is sticky, thus obtaining an electrode coating; and pulling many times by adopting a pulling method, coating an electrode coating layer on the surface of a titanium plate, drying for 3-7h at the temperature of 120-150 DEG C, and preparing the composite anode. The preparation method disclosed by the invention has simple process, and the prepared electrode has the advantages of stable performances, low cost and good conductive performance.

Description

technical field [0001] The invention belongs to the field of electrochemistry and new energy materials, and relates to a preparation method of a graphene / polyaniline composite anode. Background technique [0002] Electroplating anodes can be divided into soluble anodes and insoluble anodes according to their solubility properties. The role of the insoluble anode is to conduct electricity and control the distribution of current on the surface of the cathode. It does not participate in the dissolution of the metal, which is conducive to improving the uniformity of the coating, reducing energy consumption, and ensuring the operation rate and production continuity without frequent replacement. Widely used in modern electroplating industry. However, the traditional coated electrode is to coat metal oxide on the surface of metal titanium. Metal oxides are mostly noble metals, and the production cost is very high. Therefore, it is meaningful to develop an insoluble anode with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D17/10B05D1/18C08G73/02C09D179/02C09D5/24
Inventor 郝建军里新吴凯王昊
Owner SHENYANG LIGONG UNIV
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