Method for preparing carbon-doped molybdenum sulfide/graphene oxide composite material

A composite material, molybdenum sulfide technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, chemical/physical processes, etc., can solve the problem of low purity molybdenum disulfide, harsh reaction conditions, economical The problem of high cost is to achieve the effect of simple and controllable preparation method, low cost of raw materials, and improved dispersion performance.

Active Publication Date: 2019-04-16
DONGGUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the preparation methods of molybdenum disulfide are as follows: hydrothermal or solvothermal method, thermal decomposition method, chemical vapor deposition method, microwave method, mechanical stripping method, template method, electrochemical method, etc., the above preparation methods are currently available To a certain extent, the morphology and size of molybdenum disulfide are controlled, and the preparation method of molybdenum disulfide is optimized; although there are many methods found now, there are still many problems, such as harsh reaction conditions, complicated equipment, and the formation of molybdenum disulfide. Therefore, it is urgent to develop a method for preparing nano molybdenum disulfide with superior performance and controllable morphology.

Method used

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  • Method for preparing carbon-doped molybdenum sulfide/graphene oxide composite material
  • Method for preparing carbon-doped molybdenum sulfide/graphene oxide composite material
  • Method for preparing carbon-doped molybdenum sulfide/graphene oxide composite material

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Embodiment 1

[0034]A method for preparing carbon-doped molybdenum sulfide / graphene oxide composites, with (NH 4 ) 6 Mo 7 o 24 4H 2 O, graphene oxide, 1,3-two (thioacetic acid-S-n-propyl) imidazolium bromide, ethanol are raw materials, comprise the steps:

[0035] S1, prepare mixed solution: weigh 0.1236g (NH 4 ) 6 Mo 7 o 24 4H 2 O, 0.0977g 1,3-bis(thioacetic acid-S-n-propyl)imidazolium bromide, 30 mg GO, add 20ml ethanol and 30ml water, sonicate until completely dissolved to form a mixed solution;

[0036] S2. Heating: Transfer the mixed solution to a 100 mL polytetrafluoroethylene reactor, and continue the reaction at 200°C for 24 hours to obtain the reactant;

[0037] S3. Cooling: After the heating is completed, the reactant is cooled to room temperature at a rate of 10°C / 10min. After each cooling, the holding time is 10min, and the product in the reactor is taken out;

[0038] S4. Separation: centrifuge the product at 8000r / min for 5min with a centrifuge, then repeatedly wash ...

Embodiment 2

[0046] The present embodiment provides a method for preparing carbon-doped molybdenum sulfide / graphene oxide composite material, with (NH 4 ) 6 Mo 7 o 24 4H 2 O, graphene oxide, 1,3-two (thioacetic acid-S-n-propyl) imidazolium bromide, ethanol are raw materials, comprise the steps:

[0047] S1, prepare mixed solution: weigh 0.1236g (NH 4 ) 6 Mo 7 o 24 4H 2 O. 0.0782g 1,3-bis(thioacetic acid-S-n-propyl)imidazolium bromide, 10 mg GO, add 20ml ethanol and 30ml water, sonicate until completely dissolved to form a mixed solution;

[0048] S2. Heating: Transfer the mixed solution to a 100 mL polytetrafluoroethylene reactor, and continue the reaction at 180°C for 12 hours to obtain the reactant;

[0049] S3. Cooling: After the heating is completed, the reactant is cooled to room temperature at a rate of 10°C / 10min. After each cooling, the holding time is 10min, and the product in the reactor is taken out;

[0050] S4. Separation: centrifuge the product at 8000r / min for 5min...

Embodiment 3

[0054] The present embodiment provides a method for preparing carbon-doped molybdenum sulfide / graphene oxide composite material, with (NH 4 ) 6 Mo 7 o 24 4H 2 O, graphene oxide, 1,3-two (thioacetic acid-S-n-propyl) imidazolium bromide, ethanol are raw materials, comprise the steps:

[0055] S1, prepare mixed solution: weigh 0.1236g (NH 4 ) 6 Mo 7 o 24 4H 2 O. 0.1954g 1,3-bis(thioacetic acid-S-n-propyl) imidazolium bromide, 10 mg GO, add 20ml ethanol and 30ml water, sonicate until completely dissolved to form a mixed solution;

[0056] S2. Heating: transfer the mixed solution to a 100 mL polytetrafluoroethylene reactor, and continue the reaction at 220°C for 18 hours to obtain the reactant;

[0057] S3. Cooling: After the heating is completed, the reactant is cooled to room temperature at a rate of 10°C / 10min. After each cooling, the holding time is 10min, and the product in the reactor is taken out;

[0058] S4. Separation: centrifuge the product at 8000r / min for 5mi...

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Abstract

The invention discloses a method for preparing a carbon-doped molybdenum sulfide / graphene oxide composite material. The method takes (NH4) 6Mo7O24 4H2O, graphene oxide, 1,3-di(thioacetic acid-S-n-propyl) imidazole bromide and ethyl alcohol as raw materials, and comprises the steps of a, preparation of a mixed solution, b, heating, c, cooling, d, filtering, and e, drying and storing, wherein one-pot synthesis is carried out through a hydrothermal method to obtain the carbon-doped molybdenum sulfide / graphene oxide composite material. The method for preparing the carbon-doped molybdenum sulfide / graphene oxide composite material has the advantages that through the synergistic effect of a 1,3-di(thioacetic acid-S-n-propyl) imidazole bromide dimercapto functionalized ionic liquid, the graphene oxide and the ethyl alcohol, the hydrogenation conversion rate of the composite material for naphthalene reaches up to 45.8%, the preparation method is simple and controllable, the cost of the raw materials is lower, and the composite material is green and has no pollution.

Description

technical field [0001] The invention relates to the technical field of preparation methods of two-dimensional molybdenum disulfide, in particular to a method for preparing carbon-doped molybdenum sulfide / graphene oxide composite materials. Background technique [0002] With the research and development of various nanomaterials, the preparation and application of molybdenum disulfide nanomaterials have gradually entered the field of vision of scientists. In 1995, Israeli scientist R.Tenne and others synthesized molybdenum disulfide nanomaterials with a fullerene structure for the first time. After particles and nanotubes, molybdenum disulfide nanorods, nanoflowers, nanowires, and nanosheets have gradually become research hotspots in the scientific community; performance, so the material has been developed into various excellent lubricants, which are widely used in the industrial field; however, the development of electronic technology and the emergence of the energy crisis ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34C07C13/50C07C5/10
CPCC07C5/10B01J31/34C07C13/50
Inventor 徐红娇马浩鹏
Owner DONGGUAN UNIV OF TECH
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