Preparation method of three-dimensional graphene/molybdenum disulfide airgel doped with tetraethyl orthosilicate

A technology of ethyl orthosilicate and molybdenum disulfide, which is applied in the directions of molybdenum sulfide, chemical instruments and methods, catalyst activation/preparation, etc., can solve problems such as unfavorable environmental protection, complicated and complicated processes, and achieve stable three-dimensional structure and simple preparation process. , the effect of large surface area

Active Publication Date: 2019-06-25
武斌
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Problems solved by technology

[0003] To sum up, the existing problems in the prior art are: in the preparation process of the existing composite airgel, chemical cross-linking agents need to be added, which is not conducive to environmental protection; at the same time, the airgel needs to be prepared by freeze-drying, and the process is cumbersome and complicated

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  • Preparation method of three-dimensional graphene/molybdenum disulfide airgel doped with tetraethyl orthosilicate
  • Preparation method of three-dimensional graphene/molybdenum disulfide airgel doped with tetraethyl orthosilicate
  • Preparation method of three-dimensional graphene/molybdenum disulfide airgel doped with tetraethyl orthosilicate

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[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the preparation method of the three-dimensional graphene / molybdenum disulfide aerogel doped with ethyl tetrasilicate provided by the embodiment of the present invention comprises the following steps:

[0027] S101: Prepare graphene oxide by the Hummers method, disperse 2g of graphite powder in 50mL of concentrated sulfuric acid, and then mix 6g of potassium permanganate and 2g of NaNO under magnetic stirring 3Slowly and alternately add to the above r...

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Abstract

The invention belongs to the technical field of aerogel and discloses a preparation method of tetraethyl-orthosilicate-doped three-dimensional graphene / molybdenum disulfide aerogel. The traditional method for preparing aerogel by lyophilizing, tetraethyl orthosilicate is introduced innovatively, and three-dimensional graphene / molybdenum disulfide aerogel is prepared through silicide filling; an optimal stable preparation process is established; adding a chemical crosslinker is not required, and the process is simple and highly controllable; ray diffraction, infrared spectroscopy, scanning electron microscope, thermogravimetric analysis and Raman spectroscopy analyses show that a prepared 3D MoS2 / G sample has the advantages of low density, high porosity, high mechanical strength, and high stability. Compared with other existing methods, the preparation method herein has good stability and repeatability, and can provide references for the construction of other metal silicide and graphene assembly compounds and their application and researches.

Description

technical field [0001] The invention belongs to the technical field of airgel preparation, and in particular relates to a method for preparing a three-dimensional graphene / molybdenum disulfide airgel doped with ethyl orthosilicate. Background technique [0002] Coal gasification technology is playing an increasingly important role in industrial production, and the desulfurization link to improve the production efficiency of this technology is a key component of the system. Carbon-based materials have excellent stability and adsorption properties, and have been widely used as support materials in the preparation of supported noble metal catalysts. So after a lot of research, it was found that MoS 2 Composite materials combined with graphene exhibit superior electrocatalytic activity compared with traditional noble metal catalysts. The three-dimensional graphene assembly can often repair the conjugated structure of the carbon crystal plane during the formation process, and t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051C01B32/198C01G39/06
CPCB01J27/051B01J35/026B01J37/10C01G39/06C01P2002/72C01P2002/82C01P2004/03C01P2004/04
Inventor 武斌
Owner 武斌
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