Iron-doped copper sulfide nanosheet material with rich defects and preparation method and application thereof

A technology of iron doping and nanosheets, which is applied in the field of nanomaterials, can solve the problems that restrict the development and slowness of hydrogen production energy technology by electrolysis of water, and achieve the effect of low production cost, high purity and high active sites

Active Publication Date: 2019-02-19
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of water splitting, its high electrocatalytic oxygen evolution reaction (OER) overpotential and slow kinetic reaction process seriously restrict the development of electrolytic water hydrogen production energy technology.

Method used

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  • Iron-doped copper sulfide nanosheet material with rich defects and preparation method and application thereof
  • Iron-doped copper sulfide nanosheet material with rich defects and preparation method and application thereof
  • Iron-doped copper sulfide nanosheet material with rich defects and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A method for self-assembling to form an iron-doped copper sulfide (Fe-CuS-0.025) nanosheet material with abundant defects, comprising the following steps:

[0042] S1: Dissolve 2mmol of copper chloride dihydrate in 10ml of absolute ethanol and stir vigorously to dissolve completely to form a uniform copper salt solution; 0.05mmol ferrous chloride tetrahydrate is vigorously stirred in 20mL of ethanol until completely dissolved to form a uniform ferrous salt solution;

[0043] S2: Vigorously stir 4 mmol of thiourea in 10 mL of ethanol until completely dissolved;

[0044] S3: Then, under vigorous stirring, the thiourea solution and the copper salt solution were rapidly mixed and stirred for 15 minutes to obtain a white flocculent intermediate solution;

[0045] S4: Under vigorous stirring, quickly mix the ferrous salt solution with the white flocculent intermediate solution obtained in step S3 and stir for 15 minutes, then transfer to a 60mL reaction kettle, tighten the l...

Embodiment 2

[0048] A method for self-assembling to form an iron-doped sulfur (Fe-CuS-0.033) copper nanosheet material with abundant defects, comprising the following steps:

[0049]S1: Dissolve 2mmol of copper chloride dihydrate in 10ml of absolute ethanol and stir vigorously to dissolve completely to form a uniform copper salt solution; 0.067mmol ferrous chloride tetrahydrate is vigorously stirred in 20mL of ethanol until completely dissolved to form a uniform ferrous salt solution;

[0050] S2: Vigorously stir 4 mmol of thiourea in 10 mL of ethanol until completely dissolved;

[0051] S3: Then, under vigorous stirring, the thiourea solution and the copper salt solution were rapidly mixed and stirred for 15 minutes to obtain a white flocculent intermediate solution;

[0052] S4: Under vigorous stirring, quickly mix the ferrous salt solution with the white flocculent intermediate solution obtained in step S3 and stir for 15 minutes, then transfer to a 60mL reaction kettle, tighten the li...

Embodiment 3

[0055] A method for self-assembling to form an iron-doped sulfur (Fe-CuS-0.05) copper nanosheet material with abundant defects, comprising the following steps:

[0056] S1: Dissolve 2mmol of copper chloride dihydrate in 10ml of absolute ethanol and stir vigorously to dissolve completely to form a uniform copper salt solution; 0.1mmol ferrous chloride tetrahydrate is vigorously stirred in 20mL of ethanol until completely dissolved to form a uniform ferrous salt solution;

[0057] S2: Vigorously stir 4 mmol of thiourea in 10 mL of ethanol until completely dissolved;

[0058] S3: Then, under vigorous stirring, the thiourea solution and the copper salt solution were rapidly mixed and stirred for 15 minutes to obtain a white flocculent intermediate solution;

[0059] S4: Under vigorous stirring, quickly mix the ferrous salt solution with the white flocculent intermediate solution obtained in step S3 and stir for 15 minutes, then transfer to a 60mL reaction kettle, tighten the lid ...

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Abstract

The invention discloses an iron-doped copper sulfide nanosheet material with rich defects and a preparation method and application thereof. The method comprises the following steps of adding a coppersalt solution into a thiourea solution, and rapidly forming a white floccule solution during stirring; mixing a ferrous salt solution with the white floccule solution under stirring, conducting stirring for 15 minutes, then transferring the solution into a reaction kettle, conducting a hydrothermal reaction for 12-15 hours at 140-160 DEG C, and conducting centrifugation, washing and drying to obtain the material. The iron-doped copper sulfide nanosheet material has the advantages that the iron-doped copper sulfide nanosheet material with the rich defects coats foamed nickel and serves as a working electrode material for electrolyzing water, the high stability and a large specific surface area are achieved, a larger activity area is provided, and therefore the water can be fast and efficiently electrolyzed.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to an iron-doped copper sulfide nanosheet material with abundant defects, a preparation method and application thereof. Background technique [0002] The ever-increasing global energy demand, coupled with the depletion of fossil fuels and associated negative environmental impacts, is driving the pursuit and utilization and intensive research of various efficient, sustainable, and low-cost energy conversion and storage technologies. Photo / electrically driven water splitting to produce hydrogen and oxygen fuels is considered to be one of the most promising strategies to realize the conversion of solar / electrical energy into chemical energy, thereby overcoming the intermittency of sunlight and realizing solar energy storage. However, in the process of water splitting, its high electrocatalytic oxygen evolution reaction (OER) overpotential and slow kinetic reaction pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/12B82Y40/00C25B1/04C25B11/06
CPCB82Y40/00C01G3/12C01P2002/72C01P2004/03C01P2004/04C25B1/04C25B11/04Y02E60/36
Inventor 张小俊陈静
Owner ANHUI NORMAL UNIV
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