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Fe-doped two-phase nickel sulfide nano array material, as well as preparation method and application thereof

A nano-array and nickel sulfide technology, which is applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of low conductivity of hydroxides, reduce energy use efficiency, etc., and increase the specific surface area , low cost, excellent stability

Active Publication Date: 2018-08-14
深圳海氢科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Layered double metal hydroxides with anion intercalation, also known as hydrotalcite, are widely used in the electrolysis of water industry, but as hydroxides themselves have low conductivity, it still needs more than 200 Millivolt overpotential, which reduces energy efficiency

Method used

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  • Fe-doped two-phase nickel sulfide nano array material, as well as preparation method and application thereof
  • Fe-doped two-phase nickel sulfide nano array material, as well as preparation method and application thereof
  • Fe-doped two-phase nickel sulfide nano array material, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) In the first reaction kettle, it is an aqueous solution containing 0.2 mol / liter of nickel nitrate, 0.1 mol / liter of iron nitrate, and 1.5 mol / liter of urea. Put the acid-treated nickel foam base material into the first reactor, then seal the reactor, raise the temperature to 100° C. and keep it under autogenous pressure for 12 hours to perform the first solvothermal reaction. After the reaction, nickel-iron layered hydroxide nano-arrays grow on the surface of the vertical nickel foam substrate. The nickel-iron layered hydroxide nano-array material is taken out, washed and dried.

[0037] (2) Put the nickel-iron layered hydroxide nanoarray material obtained in step (1) into a second reaction kettle, which contains 0.625 mol / liter of sulfur in carbon disulfide solution. Seal the reaction kettle, raise the temperature to 120° C. and keep it under autogenous pressure for 24 hours to carry out the second solvothermal reaction, so that each nickel-iron layered hydroxide...

Embodiment 2

[0043] Referring to the method in Example 1, the concentration of elemental sulfur in carbon disulfide was changed to 0.5 mol / L, and the conditions of the second solvothermal reaction were changed to: the temperature was 140° C., and the reaction time was 24 hours.

[0044] The scanning electron microscope of the obtained iron-doped two-phase nickel sulfide nanoarray material is shown in the appendix Figure 8 .

Embodiment 3

[0046] Referring to the method in Example 1, the concentration of elemental sulfur in carbon disulfide was changed to 0.625 mol / L, and the conditions of the second solvothermal reaction were changed to: the temperature was 160° C., and the reaction time was 8 hours.

[0047] The scanning electron microscope of the obtained iron-doped two-phase nickel sulfide nanoarray material is shown in the appendix Figure 9 .

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Abstract

The invention discloses a Fe-doped two-phase nickel sulfide nano array material which comprises a conductive substrate material and a Fe-doped two-phase nickel sulfide nano array structure material growing on the conductive substrate material. The invention further discloses a preparation method of the Fe-doped two-phase nickel sulfide nano array material and application of the Fe-doped two-phasenickel sulfide nano array material in an anode material for oxygen evolution with electrolytic water.

Description

technical field [0001] The invention belongs to the technical field of inorganic advanced nanometer materials, and in particular relates to an iron-doped two-phase nickel sulfide nanoarray material, its preparation method and application. Background technique [0002] With the depletion of fossil fuels and the aggravation of environmental pollution, sustainable development is facing enormous challenges, so the development of new clean energy has become a top priority. Solar energy, wind energy, biomass energy, hydrogen energy, etc. are all potential energy sources contained in nature that can replace fossil resources. As a new energy source, hydrogen energy has attracted widespread attention due to its high energy density, cleanness and pollution-free storage. However, the development of hydrogen energy is facing huge challenges. Among the many production processes, the hydrogen production process from water electrolysis is relatively simple and the technology is relatively ...

Claims

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Application Information

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IPC IPC(8): C25B11/04C25B1/04B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C25B1/04C25B11/051C25B11/091Y02E60/36
Inventor 孙晓明李鹏松邝允
Owner 深圳海氢科技有限公司
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