Nickel selenide composite material loaded with ferronickel tannate and preparation method and application of nickel selenide composite material

A composite material, nickel-iron tannin technology, applied in electrical components, battery electrodes, circuits, etc., can solve problems such as low overpotential, and achieve the effects of low synthesis temperature, good oxygen production performance, and large specific surface area

Inactive Publication Date: 2020-09-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is still a great challenge to develop efficient and stable oxygen evolution cocatalysts with low overpotential, high conversion and high current generation.

Method used

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  • Nickel selenide composite material loaded with ferronickel tannate and preparation method and application of nickel selenide composite material
  • Nickel selenide composite material loaded with ferronickel tannate and preparation method and application of nickel selenide composite material
  • Nickel selenide composite material loaded with ferronickel tannate and preparation method and application of nickel selenide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1, cut the nickel foam base to 1×3cm 2 After that, the nickel foam substrate was sequentially soaked in acetone solution, water and 3M HCl aqueous solution and ultrasonicated for 15 min.

[0031] Step 2, mix 0.05g of selenium powder, 2.0ml of ethylenediamine, and 3.0ml of water in a stainless steel hydrothermal kettle, and stir for 15 minutes. Then take a piece of the cleaned nickel foam substrate treated in step 1 and put it into a hydrothermal kettle, then seal the hydrothermal kettle and react at a temperature of 180° C. for 5 hours.

[0032] Step 3, after the temperature of the hydrothermal kettle in step 2 is cooled, wash the foamed nickel substrate with black precipitation on the surface with water and alcohol respectively, and let it air dry naturally.

[0033] Step 4, the nickel foam that the surface that step 3 obtains is the black nickel selenide product is placed in the middle of an empty 20mL container, then add the ferric chloride of 2.5mL 10mM and th...

Embodiment 2

[0036] Step 1, cut the nickel foam base to 1×3cm 2 After that, the nickel foam substrate was sequentially soaked in acetone solution, water and 3M HCl aqueous solution and ultrasonicated for 15 min.

[0037] Step 2, mix 0.05g of selenium powder, 2.0ml of ethylenediamine, and 3.0ml of water in a stainless steel hydrothermal kettle, and stir for 15 minutes. Then take a piece of the treated clean nickel foam substrate in step 1 and put it into a hydrothermal kettle, then seal the hydrothermal kettle and react at a temperature of 170° C. for 5 hours.

[0038] Step 3, after the temperature of the hydrothermal kettle in step 2 is cooled, wash the foamed nickel substrate with black precipitation on the surface with water and alcohol respectively, and let it air dry naturally.

[0039]Step 4, the nickel foam that the surface that step 3 obtains is the black nickel selenide product is placed in the middle of an empty 20mL container, then add the ferric chloride of 2.5mL 10mM and the n...

Embodiment 3

[0042] Step 1, cut the nickel foam base to 1×3cm 2 After that, the nickel foam substrate was sequentially soaked in acetone solution, water and 3M HCl aqueous solution and ultrasonicated for 15 min.

[0043] Step 2, mix 0.05g of selenium powder, 2.0ml of ethylenediamine, and 3.0ml of water in a stainless steel hydrothermal kettle, and stir for 15 minutes. Then take a piece of the cleaned nickel foam substrate treated in step 1 and put it into a hydrothermal kettle, then seal the hydrothermal kettle, and react at a temperature of 160° C. for 5 hours.

[0044] Step 3, after the temperature of the hydrothermal kettle in step 2 is cooled, wash the foamed nickel substrate with black precipitation on the surface with water and alcohol respectively, and let it air dry naturally.

[0045] Step 4, the nickel foam that the surface that step 3 obtains is the black nickel selenide product is placed in the middle of an empty 20mL container, then add the ferric chloride of 2.5mL 10mM and t...

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Abstract

The invention discloses a ferronickel tannate-loaded nickel selenide composite material and a preparation method and application thereof. The ferronickel tannate-loaded nickel selenide composite material comprises a foamed nickel substrate, a nickel selenide nanostructure is deposited on the surface of the foamed nickel substrate, and the nickel selenide nanostructure is coated with a ferronickeltannate complex layer. As an electrocatalyst, the composite material has the advantages of low cost, low synthesis temperature, high product purity, large specific surface area, large generated current and good oxygen production performance.

Description

technical field [0001] The invention relates to the technical field of transition metal selenide nanomaterials, in particular to a nickel selenide electrocatalytic composite material loaded with ferronickel tannate and its preparation method and application. Background technique [0002] In recent years, with the outbreak of the energy crisis, the development of new energy has become a major challenge facing today's society. Electrocatalytic water splitting is considered to be one of the most attractive methods for producing renewable fuels, which has very important research value and application prospects for alleviating the energy shortage and environmental pollution problems faced by today's society. In the water electrolysis reaction, the cathode and the anode perform two different redox reactions of hydrogen production and oxygen production respectively, and the oxygen evolution reaction on the anode usually shows poor activity due to the slow kinetics caused by the mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90
CPCH01M4/9075H01M4/90Y02E60/50
Inventor 张兵俞锦黄义吴永萌
Owner TIANJIN UNIV
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