Preparation method of antioxidant graphene quantum dot modified proton exchange membrane

Preparation method of antioxidant graphene quantum dot modified proton exchange membrane

  • CN 108,630,972 B
  • Filed: 03/14/2018
  • Issued: 08/06/2021
  • Est. Priority Date: 03/14/2018
  • Status: Active Grant
First Claim
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1. A preparation method of an antioxidant graphene quantum dot modified proton exchange membrane is characterized by comprising the following steps:

  • (a) stirring and mixing 100ml of aqueous solution of graphene oxide quantum dots with 100ml of 5wt% perfluorosulfonic acid resin solution for 8 hours at the stirring speed of 3000 r/min;

    then adding 0.5g of tetra-beta-p-sulfophenoxy zinc phthalocyanine for dissolving to obtain a mixed solution;

    the content of the graphene oxide quantum dots is 2 g/L;

    (b) fixing a hydrophilic PTFE microporous membrane in a frame, dip-coating the mixed solution on the surface of the hydrophilic PTFE microporous membrane, and drying at 80-160 ℃

    ;

    repeating the steps for 6-10 times;

    the aperture of the hydrophilic PTFE microporous membrane is 0.5 mu m, the porosity is 75 percent, and the thickness is 15 mu m.

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