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Preparation method and application of foamed nickel-based Ni3Se2 nano material

A technology of nanomaterials and nickel foam, which is applied in the field of electrocatalytic material preparation technology and new energy, can solve the problems of inapplicability to large-scale production, complicated preparation process, and expensive electrode materials, and achieves the advantages of rapid and direct transfer and simple preparation process The effect of easy operation and good photoelectric conversion efficiency

Active Publication Date: 2016-10-12
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the counter electrode material in the dye-sensitized solar cell is expensive, the preparation process is complicated, and it is not suitable for large-scale production, and a Ni foam based on Ni foam is provided. 3 Se 2 Preparation methods and applications of nanomaterials

Method used

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  • Preparation method and application of foamed nickel-based Ni3Se2 nano material
  • Preparation method and application of foamed nickel-based Ni3Se2 nano material
  • Preparation method and application of foamed nickel-based Ni3Se2 nano material

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Effect test

Embodiment 1

[0037] Step 1: Cut out a piece with a size of 3cm×3cm×1.5mm and a surface density of 300 g m -2 The foamed nickel was cleaned in an ultrasonic cleaner with acetone, hydrochloric acid, acetic acid, deionized water and ethanol respectively;

[0038] Step 2: Use a precision electronic balance to weigh 0.05 mmol (about 0.0055 g) of selenium dioxide into a container; use a pipette gun to measure 42 ml of benzyl alcohol into the container, and magnetically stir to disperse at 25 ° C;

[0039] Step 3: Add the cleaned nickel foam and the prepared mixed solution together into the reaction kettle, seal the reaction kettle, place it in a blast drying oven, heat to 170°C, and react for 13 hours;

[0040] Step 4, after the reaction is over, the reactor is naturally cooled to room temperature, and the Ni 3 Se 2 The nanomaterials were cleaned with deionized water and ethanol, respectively, and dried in a vacuum oven at 40 °C for 8 h to obtain Ni foam-based Ni 3 Se 2 nanomaterials.

Embodiment 2

[0042] Step 1: Cut out a piece with a size of 3cm×3cm×1.5 mm and a surface density of 300 g m-2 The foamed nickel was cleaned in an ultrasonic cleaner with acetone, hydrochloric acid, acetic acid, deionized water and ethanol respectively;

[0043] Step 2, using a precision electronic balance to weigh 0.10 mmol (about 0.0111g) of selenium dioxide into the inner container; using a pipette gun to measure 45ml of benzyl alcohol into the inner container, and magnetic stirring at 25°C to disperse;

[0044] Step 3, add the above-mentioned cleaned foamed nickel and the prepared mixed solution into a 60 ml hydrothermal reaction kettle, seal the hydrothermal reaction kettle, place it in a blast drying oven, heat to 180°C, and react for 15 hours;

[0045] Step 4, after the reaction is over, the hydrothermal reactor is naturally cooled to room temperature, and the Ni 3 Se 2 The nanomaterials were cleaned with deionized water and ethanol, respectively, and dried in a vacuum oven at 50 °C ...

Embodiment 3

[0047] Step 1: Cut out a piece with a size of 3cm×3cm×1.5 mm and a surface density of 300 g m -2 The foamed nickel was cleaned in an ultrasonic cleaner with acetone, hydrochloric acid, acetic acid, deionized water and ethanol respectively;

[0048] Step 2, use a precision electronic balance to weigh 0.15 mmol (about 0.0166g) of selenium dioxide into the inner container; use a pipette gun to measure 48ml of benzyl alcohol into the inner container, and disperse with magnetic stirring at 25°C;

[0049] Step 3, add the above-mentioned cleaned foamed nickel and the prepared mixed solution into a 60 ml hydrothermal reaction kettle, seal the hydrothermal reaction kettle, place it in a blast drying oven, heat to 190°C, and react for 17 hours;

[0050] Step 4, after the reaction is over, the hydrothermal reactor is naturally cooled to room temperature, and the Ni 3 Se 2 The nanomaterials were cleaned with deionized water and ethanol respectively, and dried in a vacuum oven at 70 °C f...

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Abstract

The invention discloses a preparation method and application of a foamed nickel-based Ni3Se2 nano material. According to the preparation method and application of the foamed nickel-based Ni3Se2 nano material of the invention, foamed nickel is adopted as a nickel source and a base material at the same time, selenium dioxide is adopted as a selenium source, and one-step solvothermal method is adopted to prepare a vertically-arranged Ni3Se2 nano material of a dendritic structure; the Ni3Se2 nano material, without any other subsequent processing required, can be directly applied to a dye-sensitized solar cell. The foamed nickel-based Ni3Se2 nano material prepared by using the preparation method provided by the invention is of a three-dimensional porous mesh structure, so that the diffusion of an electrolyte can be benefitted; the foamed nickel-based Ni3Se2 nano material is also of a vertically-arranged dendritic structure, more electrocatalytic active sites are provided, so that rapid and direct transfer of electrons can be benefitted; and therefore, the photoelectric conversion efficiency of the dye-sensitized solar cell with the Ni3Se2 nano material adopted as a counter electrode is close to the efficiency of a dye-sensitized solar cell with a traditional platinum electrode adopted as a counter electrode. The preparation method is simple in preparation process, easy in operation, easily available and low-toxicity in raw material and low in cost, and therefore, the overall cost of the dye-sensitized solar cell can be decreased.

Description

technical field [0001] The invention belongs to the field of electrocatalytic material preparation technology and new energy, in particular to a Ni foam based on nickel foam 3 Se 2 Preparation methods and applications of nanomaterials. Background technique [0002] With the increasing global energy crisis, solar energy has become a research hotspot in the field of new energy due to its advantages of abundant resources, wide distribution, and environmental protection. Dye-sensitized solar cells have the characteristics of high theoretical photoelectric conversion efficiency, low cost, simple preparation process, and environmental friendliness. As one of the most promising photovoltaic power generation technologies, they have received extensive attention. At present, dye-sensitized solar cells still face many key technical problems and have not met the needs of industrial production. [0003] Among many key technical issues, the production cost of dye-sensitized solar cells...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/042B82Y40/00
CPCY02E10/542H01G9/20B82Y40/00H01G9/042H01G9/2022
Inventor 蒋青松胡光张俊林毅
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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