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Method for preparing anhydrous proton exchange film based on sulfonated graphene oxide by utilizing spin-coating technology

A proton exchange membrane, sulfonated oxidation technology, used in final product manufacturing, electrochemical generators, sustainable manufacturing/processing, etc., to achieve the effect of improving proton conductivity and good mechanical properties

Active Publication Date: 2019-12-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the preparation of a proton exchange membrane with an ordered structure by combining polyvinyl chloride (PVC) with sulfonated graphene oxide (SGO) by spin coating technology.

Method used

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  • Method for preparing anhydrous proton exchange film based on sulfonated graphene oxide by utilizing spin-coating technology
  • Method for preparing anhydrous proton exchange film based on sulfonated graphene oxide by utilizing spin-coating technology
  • Method for preparing anhydrous proton exchange film based on sulfonated graphene oxide by utilizing spin-coating technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the phosphoric acid-doped spin-coated polymer composite film of this embodiment is carried out according to the following steps:

[0030] (1) 1.6g of polyvinyl chloride (PVC) was added to 20mL of N,N-dimethylformamide (DMF) to prepare a PVC solution with a mass fraction of 8%;

[0031] (2) 0.2g sulfonated graphene oxide (SGO) is added in the DMF of 20mL, is mixed with the SGO solution that mass fraction is 1%;

[0032] (3) Fix the glass substrate on the glue homogenizer, drop 2mL of PVC solution with a mass fraction of 8% on the glass plate with a pipette gun, spin coat at 1000rpm for 10 seconds, and bake in an oven at 80°C for 20 minutes;

[0033] (4) Use a pipette gun to take 1 mL of SGO solution with a mass fraction of 1% and drop it on a glass plate, bake it in an oven at 80°C for 20 minutes, and record it as (PVC / SGO) 1 spin-coated film;

[0034] (5) Steps (3)-(4) were repeated 5 times, the last layer was coated with PVC solution, and pl...

Embodiment 2

[0041] The preparation method of the phosphoric acid-doped spin-coated polymer composite film of this embodiment is carried out according to the following steps:

[0042] (1) 1.6g of polyvinyl chloride (PVC) was added to 20mL of N,N-dimethylformamide (DMF) to prepare a PVC solution with a mass fraction of 8%;

[0043] (2) 0.1g sulfonated graphene oxide (SGO) is added in the DMF of 20mL, is mixed with the SGO solution that mass fraction is 0.5%;

[0044] (3) Fix the glass substrate on the glue homogenizer, drop 2mL of PVC solution with a mass fraction of 8% on the glass plate with a pipette gun, spin coat at 1000rpm for 10 seconds, and bake in an oven at 80°C for 20 minutes;

[0045] (4) Use a pipette gun to take 1 mL of 0.5% SGO solution and drop it on a glass plate, bake it in an oven at 80°C for 20 minutes, and write it as (PVC / SGO) 1 spin-coated film;

[0046] (5) Steps (3)-(4) were repeated 5 times, the last layer was coated with PVC solution, and placed in an oven at 80...

Embodiment 3

[0051] The preparation method of the phosphoric acid-doped spin-coated polymer composite film of this embodiment is carried out according to the following steps:

[0052] (1) 1.6g of polyvinyl chloride (PVC) was added to 20mL of N,N-dimethylformamide (DMF) to prepare a PVC solution with a mass fraction of 8%;

[0053] (2) 0.2g sulfonated graphene oxide (SGO) is added in the DMF of 20mL, is mixed with the SGO solution that mass fraction is 1%;

[0054] (3) Fix the glass substrate on the glue homogenizer, drop 2mL of PVC solution with a mass fraction of 8% on the glass plate with a pipette gun, spin coat at 1000rpm for 10 seconds, and bake in an oven at 80°C for 20 minutes;

[0055] (4) Use a pipette gun to take 2 mL of SGO solution with a mass fraction of 1% and drop it on a glass plate, bake it in an oven at 80°C for 20 minutes, and record it as (PVC / SGO) 1 spin-coated film;

[0056] (5) Steps (3)-(4) were repeated 5 times, the last layer was coated with PVC solution, and pl...

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Abstract

The invention belongs to the technical field of a fuel cell and particularly relates to a method for preparing an anhydrous proton exchange film based on sulfonated graphene oxide by utilizing the spin-coating technology. The method comprises steps of preparing polyvinyl chloride (PVC) solution, preparing graphene oxide (SGO) solution, uniformly coating the PVC solution on a surface of a glass plate by using a spin coater, dropwise adding the SGO solution, repeating a spin coating step for 5 times, and drying to prepare the PVC / SGO 5 composite film. And soaking in PA (Polyamide) with the massfraction of 85% for 24-48 hours to prepare the PVC / SGO (Polyvinyl Chloride / Styrene Glycol)5 / PA composite film. The method is advantaged in that the non-aqueous proton exchange film having high mechanical property, good proton conductivity and the like is prepared by utilizing the spin-coating technology based on excellent conductivity of the SGO and controllable thickness of a film material prepared by the spin-coating technology and the like, and the method has the good application prospect.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a method for preparing a non-aqueous proton exchange membrane based on sulfonated graphene oxide by using spin coating technology. Background technique [0002] As the core component of the fuel cell, the proton exchange membrane (PEM) is not only responsible for conducting protons, but also provides a place for electrochemical reactions. Its properties determine the performance of the proton exchange membrane fuel cell. Therefore, researchers have been devoting themselves to the development and preparation of new proton exchange membranes with advantages such as high proton conductivity, high thermal decomposition temperature, good mechanical strength and low fuel permeability. At present, the preparation methods of proton exchange membranes mainly include the following: solution casting method (Solution Casting), the process is simple and easy to operate, but it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1069H01M8/1081
CPCH01M8/1069H01M8/1081Y02P70/50
Inventor 车全通金瑾赵静申思肖立邦黄阳磊王梦琦
Owner NORTHEASTERN UNIV
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