Preparing method for carbon cloth load Ni-S-Se nanosheet array

A nanosheet array and nanosheet technology, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effects of uniform product shape and size, simple and easy process, and low cost

Inactive Publication Date: 2017-12-29
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although cation doping is widely used to control the performance of catalysts, there are still few reports on the optimization of catalyst performance by anion doping.

Method used

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  • Preparing method for carbon cloth load Ni-S-Se nanosheet array
  • Preparing method for carbon cloth load Ni-S-Se nanosheet array
  • Preparing method for carbon cloth load Ni-S-Se nanosheet array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First mix nickel nitrate with a concentration of 0.05 moles per liter, ammonium fluoride with 0.1 moles per liter and 0.25 moles per liter of urea aqueous solution, then transfer to a polytetrafluoroethylene reactor and add a pre-cut 1*4 cm strip carbon cloth. The above reactants were reacted in an oven at 120 degrees Celsius for 6 hours, and the carbon cloth-supported Ni(OH) was obtained after naturally cooling down to room temperature. 2 Nanosheet arrays. The Ni(OH) supported by the above carbon cloth 2 The nanosheet array was placed on one end of the quartz boat, and 80 mg of a mixture of sulfur powder and selenium powder in a molar ratio of 1:3 was placed on the other end. Put the quartz boat into the high-temperature tube furnace protected by nitrogen, pay attention to place the end containing the mixture of sulfur powder and selenium powder in the direction of the upper airflow, and raise the temperature of the tube furnace to 450 degrees Celsius at a heating ra...

Embodiment 2

[0025] First mix nickel nitrate with a concentration of 0.05 moles per liter, ammonium fluoride with 0.1 moles per liter and 0.25 moles per liter of urea aqueous solution, then transfer to a polytetrafluoroethylene reactor and add a pre-cut 1*4 cm strip carbon cloth. The above reactants were reacted in an oven at 110 degrees Celsius for 10 hours, and the carbon cloth-supported Ni(OH) was obtained after naturally cooling down to room temperature. 2 Nanosheet arrays. The Ni(OH) supported by the above carbon cloth 2 The nanosheet array was placed on one end of the quartz boat, and 100 mg of a mixture of sulfur powder and selenium powder in a molar ratio of 1:3 was placed on the other end. Put the quartz boat into a high-temperature tube furnace protected by nitrogen, pay attention to placing the end of the mixture of sulfur powder and selenium powder in the direction of the upper airflow, and raise the temperature of the tube furnace to 450 at a rate of 10 degrees Celsius per m...

Embodiment 3

[0027] Using Chenhua 660D electrochemical workstation to load Ni(S 0.41 Se 0.59 ) 2 The catalytic activity of nanosheet arrays for electrolysis of water was tested. Platinum wire was used as the counter electrode, silver / silver chloride was used as the reference electrode, and carbon cloth was loaded with Ni(S 0.41 Se 0.59 ) 2 The nanosheet array is the working electrode, and the 1.0 mole per liter KOH aqueous solution is the electrolyte solution. In the voltage range from -0.6 to 0.2 V, linear voltammetry scans were performed at a scan rate of 5 mA per second to obtain carbon cloth supported Ni(S 0.41 Se 0.59 ) 2 Polarization curves of nanosheet array-catalyzed water electrolysis for hydrogen production.

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Abstract

The invention relates to a carbon cloth load Ni(S0.41Se0.59)2 nanosheet array and a preparing method thereof, and belongs to the technical field of inorganic nanomaterial preparing. A carbon cloth load Ni(OH)2 nanosheet array serves as a front driving body to be simultaneously vulcanized-selenized to prepare the carbon cloth load Ni(S0.41Se0.59)2 nanosheet array. The preparing method comprises the specific steps that firstly, nickel nitrate, ammonium fluoride and urea are used as reactants, the carbon cloth load Ni(OH)2 nanosheet array which serves as the front driving body is prepared through a hydrothermal method, further, sulfur powder and selenium powder mixture with the mass ratio of 1:3 is used to simultaneously vulcanizing and selenizing the front driving body under the protection of nitrogen to prepare the carbon cloth load Ni(S0.41Se0.59)2 nanosheet array.

Description

technical field [0001] The invention relates to a Ni-S-Se three-component nanosheet array and a preparation method thereof, belonging to the field of preparation of inorganic nanometer materials. Background technique [0002] With the global energy crisis and the intensification of environmental pollution, renewable clean energy has received more and more attention from scientists. Among them, hydrogen energy has the advantages of high energy density, clean and pollution-free, and is considered to be an excellent substitute for traditional fossil fuels. In the presence of catalysts, the use of solar or electrical energy to split water is an important method for producing hydrogen. Transition metal chalcogenides (such as: cobalt sulfide, nickel selenide, tungsten sulfide, molybdenum sulfide, etc.) have excellent catalytic performance for water splitting and have received extensive attention. Relevant studies have shown that the morphology, structure, composition and other f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/06C25B1/04C23C18/12B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C23C18/1204C23C18/1295C25B1/04C25B11/051C25B11/075Y02E60/36
Inventor 徐波陈志明张哲杨贺李村成
Owner UNIV OF JINAN
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