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FeSe2 nanocomposite material and synthetic method and application thereof

A nanocomposite material and iron diselenide technology are applied in the field of iron diselenide nanocomposite materials and their synthesis, and can solve the problems of poor hydrogen production performance, poor distribution uniformity of iron diselenide nanocomposite materials, and the like, Achieve the effects of good electrochemical hydrogen production performance, improved electron transport efficiency, and simple process

Active Publication Date: 2017-12-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the current preparation process of iron diselenide nanocomposites, due to the defects in the control of preparation process parameters, the distribution uniformity of iron diselenide nanocomposites is not good, resulting in poor hydrogen production performance

Method used

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  • FeSe2 nanocomposite material and synthetic method and application thereof
  • FeSe2 nanocomposite material and synthetic method and application thereof
  • FeSe2 nanocomposite material and synthetic method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1, the preparation of iron diselenide nanocomposite material

[0058] Cut 2×3cm 2 Long strips of carbon fiber paper were sonicated in 6M HCl, deionized water, and absolute ethanol for 10 minutes, and then dried in a vacuum oven at 60°C for 1 hour. After treatment, they were placed in an autoclave liner. Measure 15ml of dimethylamide (DMF) and 15ml of absolute ethanol in a clean beaker, and stir them with a magnetic force to mix them evenly. Then add 0.5 mmol of ferrous sulfate heptahydrate (FeSO 4 ·7H 2 O) and the selenium powder of 1mmol, stir 10min. Finally, 1 mmol of urea was added and stirred for five minutes. After the stirring was completed, the solution was transferred into a reaction kettle and reacted at 180° C. for 12 hours. After the reaction is complete, take out the reaction kettle, cool it to room temperature, rinse the carbon fiber paper with FeSe2 with water and ethanol several times in sequence, and wash the precipitated product in the ke...

Embodiment 2

[0069] Embodiment 2, the preparation of iron diselenide nanocomposite material

[0070] Cut 2×3cm 2 Long strips of carbon fiber paper were sonicated in 6M HCl, deionized water, and absolute ethanol for 10 minutes, and then dried in a vacuum oven at 60°C for 1 hour. After treatment, they were placed in an autoclave liner. Measure 20ml of dimethylamide (DMF) and 10ml of absolute ethanol in a clean beaker, and stir them with a magnetic force to mix them evenly. Then add 0.5 mmol of ferrous sulfate heptahydrate (FeSO 4 ·7H 2 O) and 1mmol of selenium powder, stirred for 10min. Finally, 1 mmol of urea was added and stirred for five minutes. After the stirring was completed, the solution was transferred into a reaction kettle and reacted at 180° C. for 12 hours. After the reaction is completed, the reactor is taken out, cooled to room temperature, and FeSe 2 The carbon fiber paper was rinsed several times with water and ethanol in turn, and the precipitated product in the kettle...

Embodiment 3

[0071] Embodiment 3, the preparation of iron diselenide nanocomposite material

[0072] Cut 2×3cm 2 Long strips of carbon fiber paper were sonicated in 6M HCl, deionized water, and absolute ethanol for 10 minutes, and then dried in a vacuum oven at 60°C for 1 hour. After treatment, they were placed in an autoclave liner. Measure 15ml of dimethylamide (DMF) and 15ml of absolute ethanol in a clean beaker, and stir them with a magnetic force to mix them evenly. Then add 0.5 mmol of ferrous sulfate heptahydrate (FeSO 4 ·7H 2 O) and the selenium powder of 1mmol, stir 10min. Finally, 2 mmol of urea was added and stirred for five minutes. After the stirring was completed, the solution was transferred into a reaction kettle and reacted at 180° C. for 12 hours. After the reaction is completed, the reactor is taken out, cooled to room temperature, and FeSe 2 The carbon fiber paper was rinsed several times with water and ethanol in turn, and the precipitated product in the kettle wa...

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Abstract

The invention relates to a FeSe2 nanocomposite material and a synthetic method and application thereof. The composite material is characterized in that FeSe2 nano particles are loaded on the surface of a conducting substrate. Dimethylformamide (DMF), absolute ethyl alcohol and the like are adopted as a solvent, urea serves as a reducing agent, iron vitriol and the like serve as an iron source of a product, selenium powder serves as a selenium source of the product, and a FeSe2 material in nanoscale is controlled and synthesized at the high pressure. Compared with an existing method, the beneficial effects of being simple and quick in preparing process, soft in synthesis condition and environment-friendly are achieved, and the synthesized nanocomposite material has the electrocatalytic activity and is suitable for the electrochemistry field.

Description

technical field [0001] The invention belongs to the field of nanomaterials and electrochemistry, and specifically relates to an iron diselenide nanocomposite material and a synthesis method thereof, and its synthesized iron diselenide composite material (FeSe 2 @CP) has good electrochemical hydrogen production performance and can be used as a catalyst for electrochemical hydrogen production. Background technique [0002] With the increasingly serious problem of the consumption of fossil energy and the environmental damage caused by it in today's world, the development of greener new energy technology has become one of the problems that human beings need to solve urgently. Therefore, scholars have made great efforts in energy conversion and storage in recent years, developed clean energy sources including wind energy, solar energy, biomass energy, tidal energy, hydrogen energy, etc. New energy storage technologies such as supercapacitors and liquid flow batteries. Among the...

Claims

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Application Information

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IPC IPC(8): C25B11/06C25B1/04B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00C25B1/04C25B11/075Y02E60/36
Inventor 周炎张景彤陈亚兰王雪媛刘明王兆杰张军
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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