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A kind of preparation method of bimetallic co-doped two-dimensional nano-electrode material

A two-dimensional nanometer and 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 effects of no precious metal doping, low cost and time saving

Active Publication Date: 2017-06-30
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

[0023] Example 1 FeMn-TiO 2 / MoS 2 preparation of

[0024] (1) Add 0.6 g of molybdenum disulfide powder, 0.2 mmol of iron salt and 0.2 mmol of manganese salt into 3 mL of n-butyllithium solution, and stir for 12 hours under nitrogen protection at 60 °C to obtain the reacted solution;

[0025] (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 iron , Molybdenum disulfide nanomaterials co-intercalated with manganese;

[0026] (3) Add 500 mg of molybdenum disulfide nanomaterials co-intercalated with iron and manganese prepared in step (2) into 5 mL of tetrabutyl titanate, and after stirring for 1 hour, slowly add 0.5 mL of hydrofluoric acid while stirring acid, then reacted in a reactor at 160°C for 18 hours;

[0027] (4) The reaction product obtained in step (3) was centrifuged and washed thre...

Embodiment 2

[0033] Example 2 FeMn-TiO 2 / MoS 2 preparation of

[0034] (1) Add 0.6 g of molybdenum disulfide powder, 1.0 mmol of iron salt and 1.0 mmol of manganese salt into 5 mL of n-butyllithium solution, and stir for 24 hours under nitrogen protection at 30 °C to obtain the reacted solution;

[0035](2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 30 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain iron , Molybdenum disulfide nanomaterials co-intercalated with manganese;

[0036] (3) Add 200 mg of molybdenum disulfide nanomaterials co-intercalated with iron and manganese prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, then slowly add 0.6 mL of hydrofluoric acid while stirring acid, then reacted in a reactor at 180°C for 20 hours;

[0037] (4) The reaction product obtained in step (3) was centrifuged and washed three times wi...

Embodiment 3

[0043] Example 3 FeMn-TiO 2 / MoS 2 Photoelectrochemical test of

[0044] The FeMn-TiO prepared in Example 1 2 / MoS 2 dissolved in water to obtain FeMn-TiO at a concentration of 5 mg / mL 2 / MoS 2 Sol, take 0.02 mL FeMn-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 prepared FeMn-TiO 2 / MoS 2 It has practical application value.

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Abstract

The invention discloses a method for preparing a double-metal co-doped two-dimensional nanometer electrode material with no noble metal doping, low cost, simple preparation and high photoelectrochemical activity. In this method, iron and manganese co-doped titanium dioxide nanosheets were in situ composited on iron and manganese co-intercalated molybdenum disulfide nanosheets, and iron and manganese co-doped titanium dioxide nano-squares were in situ composited molybdenum disulfide in one pot. The two-dimensional nanocomposite FeMn‑TiO2 / MoS2. The prepared FeMn-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 nanometer electrode material. The prepared two-dimensional nanometer electrode material 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 organic pollutants etc. 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 directl...

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 张勇张国庆郑娜史御书杨丽原
Owner UNIV OF JINAN
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