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Ni/Co-NCs hydrogen evolution material as well as preparation method and application thereof

A co-ncs, hydrogen evolution technology, applied in the field of hydrogen energy, can solve the problems of low content, high price, unfavorable application, etc., and achieve the effects of good stability, low cost, and low overpotential

Inactive Publication Date: 2019-04-26
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the content of these precious metals in the earth is low and the price is expensive, which is not conducive to practical application

Method used

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  • Ni/Co-NCs hydrogen evolution material as well as preparation method and application thereof
  • Ni/Co-NCs hydrogen evolution material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Nickel acetate 0.5mmol

[0026] Cobalt acetate 1.5mmol

[0027] Dicyandiamide 16mmol

[0028] Ethanol 50ml

[0029] Above-mentioned composite material is prepared by the preparation method of following steps:

[0030] Pour 0.5mmol nickel acetate, 1.5mmol cobalt acetate and 16mmol dicyandiamide into a beaker filled with 50ml ethanol and stir the mixed solution, and put the beaker into an ultrasonic oscillator for 5 minutes. After seeing that there are no solid particles in the solution, heat it in a water bath at 80°C until the solution is evaporated to dryness. Take out Ni / Co-C 2 N 4 h 4 The mixture was placed in a resistance furnace, fed with nitrogen, and calcined at a high temperature of 800° C. for 2 hours to finally obtain a Ni / Co-NCs hydrogen evolution material.

Embodiment 2

[0036] Nickel acetate 1.2mmol

[0037] Cobalt acetate 0.6mmol

[0038] Dicyandiamide 12mmol

[0039] Ethanol 40ml

[0040] Above-mentioned composite material is prepared by the preparation method of following steps:

[0041] Pour 1.2mmol nickel acetate, 0.6mmol cobalt acetate and 12mmol dicyandiamide into a beaker filled with 40ml ethanol and stir the mixed solution, and put the beaker into an ultrasonic oscillator for 5 minutes. After seeing that there are no solid particles in the solution, heat it in a water bath at 80°C until the solution is evaporated to dryness. Take out Ni / Co-C 2 N 4 h 4 The mixture was placed in a resistance furnace, fed with nitrogen, and calcined at a high temperature of 1000° C. for 2 hours to finally obtain a Ni / Co-NCs hydrogen evolution material.

Embodiment 3

[0047] Nickel acetate 1.0mmol

[0048] Cobalt acetate 1.75mmol

[0049] Dicyandiamide 20mmol

[0050] Ethanol 80ml

[0051] Above-mentioned composite material is prepared by the preparation method of following steps:

[0052] Pour 1.0mmol of nickel acetate, 1.75mmol of cobalt acetate and 20mmol of dicyandiamide into a beaker filled with 80ml of ethanol and stir the mixed solution, and put the beaker into an ultrasonic oscillator for 5 minutes. After seeing that there are no solid particles in the solution, heat it in a water bath at 80°C until the solution is evaporated to dryness. Take out Ni / Co-C 2 N 4 h 4 The mixture was placed in a resistance furnace, fed with nitrogen, and calcined at a high temperature of 1000° C. for 4 hours to finally obtain a Ni / Co-NCs hydrogen evolution material.

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PUM

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Abstract

The invention discloses a Ni / Co-NCs hydrogen evolution material as well as a preparation method and application thereof. The preparation method mainly comprises the following steps: firstly, mixing nickel acetate, cobalt acetate, dicyandiamide and ethanol, and ultrasonically dispersing the mixture; putting the mixture into a water bath, and drying by distillation to obtain a Ni / Co-C2N4H4 mixture;putting the mixture into a resistance furnace for calcination under anaerobic conditions to finally obtain the Ni / Co-NCs material. The Ni / Co-NCs raw material prepared with preparation method is low incost, simple in preparation mode and good in hydrogen evolution effect in an alkaline solution and is expected to be developed industrially.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy, in particular to a Ni / Co-NCs hydrogen evolution material, a preparation method and an application thereof. Background technique [0002] Energy and the environment are the most important issues involved in the sustainable development of human society. At present, 80% of the world's energy demand comes from fossil fuels, which will eventually lead to the depletion of fossil fuels, and their use will also lead to serious environmental pollution. It is an inevitable trend of development to gradually shift from fossil fuels to non-fossil energy sources with sustainable development and pollution-free. Hydrogen is one of the ideal clean energy sources and also a heavy chemical raw material, which is widely valued by countries all over the world. Traditional hydrogen production methods often consume a large amount of fossil fuels and produce a large number of by-products at the same time. Ther...

Claims

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Application Information

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IPC IPC(8): B01J27/24C25B1/04C25B11/06
CPCC25B1/04C25B11/04B01J27/24B01J35/33Y02E60/36
Inventor 蒋继波陈宇凯孙瑶馨胡晓敏朱丽莹陈浩天王红星姜鹏飞杨圆圆马健尹佳彬韩生
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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