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A kind of preparation method of two-dimensional nanometer electrode material

A two-dimensional nano-electrode material technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of cumbersome process and low yield, and achieve the effect of no noble metal doping, low cost, and preventing recombination

Active Publication Date: 2017-08-04
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the synthesis methods are synthesized separately, and then compound the catalyst and the carrier, the process is cumbersome and the yield is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 Cu-TiO 2 / MoS 2 preparation of

[0023] (1) Add 0.6 g of molybdenum disulfide powder and 0.2 mmol of copper salt to 3 mL of n-butyllithium solution, and stir for 12 hours under nitrogen protection at 60 °C to obtain the reacted solution;

[0024] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 60 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain copper Intercalated molybdenum disulfide nanomaterials;

[0025] (3) Take 500 mg of copper-intercalated molybdenum disulfide nanomaterials prepared in step (2) and add them to 5 mL of tetrabutyl titanate. After stirring for 1 hour, slowly add 0.5 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 160°C for 18 hours;

[0026] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol, and the...

Embodiment 2

[0031] Example 2 Cu-TiO 2 / MoS 2 preparation of

[0032] (1) Add 0.6 g of molybdenum disulfide powder and 1.0 mmol of copper salt to 5 mL of n-butyllithium solution, and stir for 24 hours under nitrogen protection at 30 °C to obtain the reacted solution;

[0033] (2) Use a non-polar solvent to wash the solution after the reaction in step (1), and then perform ultrasonic treatment in a water bath at 30 °C. After the treatment, use a non-polar solvent to wash the treated solution, and dry it in vacuum to obtain copper Intercalated molybdenum disulfide nanomaterials;

[0034] (3) Take 200 mg of copper-intercalated molybdenum disulfide nanomaterials prepared in step (2) and add them to 5 mL of tetrabutyl titanate. After stirring for 1 hour, slowly add 0.6 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 180°C for 20 hours;

[0035](4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute et...

Embodiment 3

[0040] Example 3 Cu-TiO 2 / MoS 2 Photoelectrochemical test of

[0041] The Cu-TiO prepared in Example 1 2 / MoS 2 dissolved in water to obtain Cu-TiO at a concentration of 5 mg / mL 2 / MoS 2 Sol, take 0.02 mL Cu-TiO 2 / MoS 2 The sol is modified on the ITO electrode, the saturated calomel electrode is used as the reference electrode, and the platinum wire electrode is used as the auxiliary electrode to form a three-electrode system, which is connected to the photoelectrochemical detection equipment; 15mL Tris with pH=5.4 is added to the electrolytic cell successively. -HCl buffer solution and 5 mL of 10 mmol / L L-ascorbic acid-2-phosphate trisodium salt AAP solution; using i-t test means, test the resulting photocurrent intensity, which can reach 0.2 mA, indicating that the Cu-TiO prepared by the present invention 2 / MoS 2 It has practical application value.

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PUM

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Abstract

The invention discloses a preparation method of a two-dimensional nano electrode material without noble metal doping, low cost, simple preparation and high photoelectric activity. In this method, copper-doped titania nanosheets were in situ composited on copper-intercalated molybdenum disulfide nanosheets, and a two-dimensional nanocomposite Cu‑TiO2, in which copper-doped titania nanosquares were in situ composited with molybdenum disulfide, was prepared in one pot. / MoS2. The prepared Cu‑TiO2 / MoS2 can be applied in the fields of solar photovoltaic cell preparation, photoelectrochemical sensor construction, photocatalytic water splitting hydrogen production, and photocatalytic degradation of organic pollutants. The invention belongs to the technical field of novel nano functional materials and green energy.

Description

technical field [0001] The invention relates to a method for preparing a two-dimensional nanomaterial. The prepared two-dimensional nanomaterial has photoelectrochemical activity and can be applied to the preparation of solar photovoltaic cells, the construction of photoelectrochemical sensors, photocatalytic water splitting to produce hydrogen, and photocatalytic degradation of organic pollution. things and other fields. The invention belongs to the technical field of novel nano functional materials and green energy. Background technique [0002] Solar cells, also known as "solar chips" or "photovoltaic cells", are photoelectric semiconductor sheets that use sunlight to generate electricity directly. As long as it is illuminated by light that meets certain illumination conditions, it can output voltage instantly and generate current when there is a loop. In physics, it is called solar photovoltaic, or photovoltaic for short. A solar cell is a device that directly convert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0224
CPCC01G39/06C01P2004/84C01P2006/40C01P2006/60H01L31/022425Y02E10/50
Inventor 史御书张国庆郑娜张勇
Owner UNIV OF JINAN
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