Molybdenum disulfide nano-sheet/graphene nano-ribbon composite material and manufacturing method thereof

A technology of graphene nanobelts and molybdenum disulfide, which is applied in the direction of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of poor conductivity of semiconductor materials and the inability to fully utilize the performance of molybdenum disulfide, and achieve easy operation, Effective and fast preparation method, ingenious effect of experimental design

Inactive Publication Date: 2016-01-06
FUDAN UNIV
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, pure molybdenum disulfide is hydrangea-shaped, and it preferentially grows the inert inner layer structure instead of the active sheet edge, and a large number of aggregates further restrain the exposure of the active edge, coupled with the poor conductivity of its semiconductor material properties, the excellent properties of molybdenum disulfide cannot be fully utilized

Method used

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  • Molybdenum disulfide nano-sheet/graphene nano-ribbon composite material and manufacturing method thereof
  • Molybdenum disulfide nano-sheet/graphene nano-ribbon composite material and manufacturing method thereof
  • Molybdenum disulfide nano-sheet/graphene nano-ribbon composite material and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, This embodiment includes the following steps:

[0047] (1) Disperse 150 mg of multi-walled carbon nanotubes in 98% concentrated sulfuric acid, and then add 85% phosphoric acid after the dispersion is uniform, and keep stirring during this process to obtain a uniform dispersion;

[0048] (2) Add 750mg potassium permanganate to the above dispersion, add in batches, and keep stirring;

[0049] (3) Slowly raise the temperature of the reaction system to 70°C. After the temperature stabilizes, keep it warm for a period of time and keep stirring;

[0050] (4) Cool the resulting mixed dispersion to room temperature naturally, then pour it into ice water containing 7mL of 50% hydrogen peroxide, and let it settle overnight;

[0051] (5) Wash the obtained precipitated substance several times with 10% hydrochloric acid aqueous solution, and then wash several times with the mixed solution of ethanol / ether;

[0052] (6) Centrifugal drying to obtain solid graphene ox...

Embodiment 2

[0058] Embodiment 2, Change the quality of the ammonium thiomolybdate in embodiment 1 into 22mg, all the other are the same as embodiment 1, the composite material finally obtained is denoted as GNRMoS 2 -1.

Embodiment 3

[0059] Embodiment 3, Change the quality of the ammonium thiomolybdate in embodiment 1 into 44mg, all the other are the same as embodiment 1, the composite material finally obtained is denoted as GNRMoS 2 -2.

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Abstract

The invention belongs to the technical field of transitional metal sulfide-carbon material, and specifically relates to a molybdenum disulfide nano-sheet / graphene nano-ribbon composite material and a manufacturing method thereof. In the invention, a graphene nano-ribbon is manufactured through the solution oxidation method; and molybdenum disulfide nano-sheets are geminated on the original positions on the graphene nano-ribbon through the solvent thermal method. The graphene nano-ribbon manufactured by the method provided herein has the advantages of stable chemical property, good electric conductivity and high length diameter ratio; the composite material manufactured by the method provided herein has the characteristic of controllable shape; and molybdenum disulfide nano-sheets are evenly loaded on the graphene nano-ribbons, thus the unique base structure of graphene nano-ribbon is fully utilized. The molybdenum disulfide nano-sheet / graphene nano-ribbon composite material manufactured by the method of the invention can be an ideal electrochemistry hydrogen evolution material with high performance and can be electrode material of new energy apparatuses like lithium ion batteries and solar batteries.

Description

technical field [0001] The invention belongs to the technical field of transition metal sulfide-carbon materials, and in particular relates to a molybdenum disulfide nanosheet / graphene nanoribbon composite material and a preparation method thereof. technical background [0002] Graphene nanobelt is a quasi-one-dimensional carbon-based nanomaterial, which inherits the excellent physical and chemical properties of carbon nanomaterials, such as high electrical conductivity, excellent mechanical properties, high aspect ratio, special edge effects and Good chemical stability, etc. These special properties make it have extremely broad application prospects in the fields of energy conversion and storage, field effect transistors, electronic sensors, polymer nanocomposites, etc., and become a research hotspot in the field of carbon nanomaterials. [0003] Molybdenum disulfide is a typical transition metal chalcogenide. It belongs to the hexagonal crystal system. There are strong Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00B82Y30/00B82Y40/00
Inventor 刘天西顾华昊张由芳樊玮黄云鹏张龙生鲁恒毅
Owner FUDAN UNIV
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