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Method for preparation, characterization and performance test of graphene-graphene nanoribbon sponge

A graphene nanoribbon and graphene technology, applied in the field of chemistry, can solve the problem that sponges do not have compressive elasticity, and achieve the effects of good compressive elasticity, simple operation and good application prospects.

Inactive Publication Date: 2020-03-10
季懿
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Problems solved by technology

[0005] For the defects in the prior art, the object of the present invention is to overcome the deficiencies in the above-mentioned prior art, provide the method for the preparation characterization and performance testing of graphene-graphene nanoribbon sponge, solve the problems prepared in the prior art Sponge does not have the technical problem of compressive elasticity, the invention is simple to operate, and the graphene sponge prepared by using the present invention has compressive elasticity

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Embodiment Construction

[0029] The method of preparation, characterization and performance testing of graphene-graphene nanoribbon sponge, using the gravimetric method to determine the concentration of graphene oxide (GO) and graphene oxide nanoribbon (GONR) solution, in mg / mL;

[0030] (2) According to the mass ratio of GO and GONR is 1:1, draw the corresponding volume of solution into the mold, stir and mix evenly;

[0031] (3) Freeze the well-mixed GO-GONR solution in the cold well of the freeze dryer for about 24 hours, then vacuumize and start freeze-drying. In order to ensure that the sample is completely dry, the freeze-drying time needs to be at least 48 hours;

[0032] (4) Take out the completely freeze-dried sample, which is the unreduced GO-GONR sponge, that is, graphene oxide-graphene oxide nanoribbon composite sponge;

[0033] (5) Place it in hydrazine hydrate vapor at 90°C for 24 hours, take it out after cooling to room temperature, put it in a vacuum drying oven at 100°C for 24 hours ...

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Abstract

The invention provides a method for preparation, characterization and performance test of graphene-graphene nanoribbon sponge in the field of chemistry. The method comprises the steps of (1) measuringthe concentrations of a graphene oxide (GO) solution and a graphene oxide nanoribbon (GONR) solution; (2) respectively extracting solutions with corresponding volumes into a mold according to a massratio of GO to GONR of 1:1, and uniformly stirring and mixing; (3) freezing the uniformly mixed GO-GONR solution in a cold well of a freeze dryer for 24 hours, vacuumizing, and starting freeze drying;(4) taking out the completely freeze-dried sample to obtain unreduced GO-GONR sponge at the moment; (5) putting the unreduced GO-GONR sponge into 90 DEG C hydrazine hydrate steam, reducing for 24 hours, cooling to the room temperature, taking out, putting into a vacuum drying oven, carrying out vacuum drying at the temperature of 100 DEG C, and cooling to the room temperature; and (6) characterizing the prepared sponge. The method is simple to operate.

Description

technical field [0001] The invention belongs to the field of chemistry, and in particular relates to methods for the preparation, characterization and performance testing of graphene-graphene nanoribbon sponges. Background technique [0002] Graphene nanosheets have a two-dimensional planar structure. After introducing one-dimensional (such as carbon nanotubes) or two-dimensional (such as molybdenum disulfide) nanomaterials and compounding them, due to the van der Waals force and π-π force between molecules For other reasons, these one-dimensional or two-dimensional nanomaterials will be adsorbed together with graphene nanosheets to form graphene composite nanosheets; by exerting the synergistic effect between various materials, graphene composite nanosheets have better Assembling it into a three-dimensional structure can obtain a multifunctional graphene composite sponge. [0003] The Gaochao research group of Zhejiang University mixed multi-walled carbon nanotubes (MWCNTs...

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Application Information

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IPC IPC(8): G01N3/32G01N30/00G01N27/48
CPCG01N3/32G01N27/48G01N30/00G01N2203/0005G01N2203/0019G01N2203/0085
Inventor 季懿
Owner 季懿
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