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Preparation method of CNT/Co/MoS2 composite material

A technology of composite materials and mixtures, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve environmental pollution and other problems, and achieve the effect of simple reaction equipment and low cost

Inactive Publication Date: 2015-09-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the modified molybdenum sulfide still has hydrophobicity in the existing molybdenum sulfide surface modification treatment method, or the surface modification treatment method involves a large amount of organic solvents, causing serious environmental pollution problems, And provide a CNT / Co / MoS 2 Preparation method of composite material

Method used

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  • Preparation method of CNT/Co/MoS2 composite material
  • Preparation method of CNT/Co/MoS2 composite material
  • Preparation method of CNT/Co/MoS2 composite material

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specific Embodiment approach 1

[0017] Specific implementation mode 1: This implementation mode is a kind of CNT / Co / MoS 2 The preparation method of the composite material is specifically completed according to the following steps: 1. acid treatment: put carbon nanotubes into acid for acid treatment to obtain carbon nanotubes after acidification; 2. prepare CNT / Co: assisted by ultrasonic waves After acidification, the carbon nanotubes are uniformly dispersed in distilled water to obtain a carbon nanotube dispersion, and then cobalt nitrate is dissolved in the carbon nanotube dispersion under ultrasonic conditions to obtain a cobalt-containing carbon nanotube mixture, and the cobalt-containing carbon nanotube mixture is obtained under ultrasonic conditions. Add sodium borohydride aqueous solution dropwise to the carbon nanotube mixture, then filter, and use deionized water to rinse the solid-phase filtrate for 2 to 4 times to obtain the cleaned solid-phase filtrate, and then wash the solid-phase filtrate Carry...

specific Embodiment approach 2

[0018] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the acid described in step one is concentrated nitric acid-concentrated sulfuric acid mixed acid, and the volume ratio of described concentrated nitric acid and concentrated sulfuric acid is 1:3, and the described The mass fraction of the concentrated nitric acid is 60%-68%, and the mass fraction of the concentrated sulfuric acid is 68%-75%. Others are the same as the first embodiment.

specific Embodiment approach 3

[0019] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the acid treatment described in step 1 is specifically operated as follows: carbon nanotubes are put into concentrated nitric acid-concentrated sulfuric acid mixed acid, at a temperature of The acid treatment was completed by ultrasonic treatment at 50°C for 6 hours, and the volume ratio of the mass of the carbon nanotubes to the mixed acid of concentrated nitric acid-concentrated sulfuric acid was 1g:40mL. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method of a CNT / Co / MoS2 composite material, relates to a modification method of molybdenum sulfide, and aims at solving the problems that according to the existing surface modification method of molybdenum sulfide, after modification, molybdenum sulfide still has hydrophobicity, or serious environment pollution problem is caused as a great deal of organic solvents are used in the existing surface modification method. The preparation method provided by the invention comprises the following steps: 1. performing acid treatment so as to obtain an acidized carbon nano tube; 2. preparing CNT / Co; and 3. loading MoS2 so as to obtain the CNT / Co / MoS2 composite material. The preparation method has the advantage that the surface of carbon nano tube can be uniformly coated by molybdenum sulfide. The technology is used for preparing the CNT / Co / MoS2 composite material.

Description

technical field [0001] The invention relates to a modification method of molybdenum sulfide. Background technique [0002] my country is rich in molybdenite mineral resources, molybdenite (MoS 2 ) have many excellent properties, such as lubrication, catalysis, energy storage, and optoelectronic properties, which are favored by the scientific and industrial circles. Especially for catalytic performance, compared with traditional catalysts, molybdenum sulfide not only has high catalytic efficiency, but also can effectively avoid hydrogen sulfide poisoning that often occurs in the catalytic process of precious metals such as Pt. However, in most applications of molybdenum sulfide, such as catalysis and energy storage, molybdenite is insoluble in water, which directly limits the application of molybdenum sulfide. At present, the solution to this problem mainly depends on: 1) the resynthesis of molybdate and sulfur source; 2) the surface modification of molybdenum sulfide by su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/52H01M4/58H01M4/583B01J27/051
CPCH01M4/139H01M4/362H01M4/5815H01M4/583Y02E60/10
Inventor 李春香胡平安姜兆华
Owner HARBIN INST OF TECH
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