Preparation method and applications of foam nickel-loaded iron-nickel-based composite material

A composite material and nickel foam technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve thermal stability, poor water stability and chemical stability, difficult recycling and post-processing, Affect the use effect and other issues to achieve the effect of realizing catalytic efficiency, preventing loss and improving catalyst performance

Active Publication Date: 2020-02-21
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability, water stability and chemical stability of MOF materials are poor, which limits its application in many fields; in addition, the particle size

Method used

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  • Preparation method and applications of foam nickel-loaded iron-nickel-based composite material
  • Preparation method and applications of foam nickel-loaded iron-nickel-based composite material
  • Preparation method and applications of foam nickel-loaded iron-nickel-based composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1. Take nickel foam (NF) and cut it into a piece (1cm×3cm), put it in a beaker, add absolute ethanol to submerge, pour out the absolute ethanol after ultrasonication for 15min, add 1mol / L dilute hydrochloric acid until submerged, and ultrasonically After 15 minutes, wash with water and set aside; add 16mL aqueous solution containing nickel nitrate (25mM), ferric nitrate (25mM), ammonium acetate (0.1M) and ammonium fluoride (0.1M) into a 25mL glass bottle, then take 0.4mL of 0.125 The g / mL polyvinylpyrrolidone solution is mixed with the above solution, and the treated foam nickel is added; then the glass bottle is put into a 100mL autoclave, and reacted at 200°C for 10h; after separation, washing and drying, the loaded carbon-rich The nickel foam of FeNi-LDHs is FeNi-LDHs / NF nano-array composite material.

[0034] The scanning electron microscope images of the prepared FeNi-LDHs / NF nanoarray composites are as follows: figure 1 as shown ( figure 1 are the scanning ...

Embodiment 2

[0040] Step 1. Take nickel foam (NF) and cut it into a piece (1cm×1cm), put it in a beaker, add absolute ethanol to submerge, pour out the absolute ethanol after ultrasonication for 15min, add 1mol / L dilute hydrochloric acid until submerged, and ultrasonically After 15min, wash with water and set aside; add 16mL ethanol solution containing nickel chloride (25mM), ferric chloride (50mM), ammonium chloride (0.2M) and urea (0.2M) into a 25mL glass bottle, then take 0.2mL The 0.125g / mL sodium citrate solution was mixed with the above solution, and then the treated foam nickel was added; then the glass bottle was put into a 100mL autoclave, and reacted at 100°C for 10h; after separation, washing and drying, the loaded Carbon-rich FeNi-LDHs nickel foam is the FeNi-LDHs / NF nanoarray composite.

[0041] Step 2, dissolving ferric chloride hexahydrate (25mM) in 50mL water, dissolving 1,3,5-tribenzoic acid (25mM) in 50mL water, stirring and mixing the two to form a MOF precursor solution...

Embodiment 3

[0045] Step 1. Take nickel foam (NF) and cut it into a piece (1cm×3cm), put it in a beaker, add absolute ethanol to submerge, pour out the absolute ethanol after ultrasonication for 15min, add 1mol / L dilute hydrochloric acid until submerged, and ultrasonically After 15 minutes, wash with water and set aside; add 16mL aqueous solution containing nickel nitrate (25mM), ferric chloride (25mM) and ammonium fluoride (0.2M) into a 25mL glass bottle, then take 0.8mL of 0.125g / mL hexadecanon The alkyltrimethylammonium bromide solution was mixed with the above solution, and the treated foamed nickel was added; then the glass bottle was put into a 100mL autoclave, and reacted at 160°C for 10h. After separation, washing and drying, nickel foam loaded with carbon-rich FeNi-LDHs was obtained, which was the FeNi-LDHs / NF nanoarray composite.

[0046] Step 2. Dissolve nickel nitrate (5mM) in 25mL water, dissolve cobalt nitrate (5mM) in 25mL water, and dissolve terephthalic acid (50mM) in 50mL...

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Abstract

The invention discloses a preparation method and applications of a foam nickel-loaded iron-nickel-based composite material. The method comprises the following operation steps: 1, taking a nickel source, an iron source, an ammonium source, a surfactant and foam nickel, to be ultrasonically dispersed in a solvent A to prepare a precursor solution, putting the obtained precursor solution into a high-pressure kettle, reacting for 5-20 h in a high-pressure environment, cooling to room temperature after the reaction is finished, taking out, washing, and drying to obtain a nitrogen-doped FeNi-LDHs/NFnanometer array composite material; 2, putting the FeNi-LDHs/NF nanometer array composite material obtained in the step 1 into a synthesis solution of MOF, loading the MOF particles on the surface ofthe FeNi-LDHs/NF nanometer array composite material through a template oriented growth reaction, washing with water multiple times, and drying to obtain a FeNi-LDHs/MOF/NF nanometer array composite material; and 3, carrying out phosphorus doping, sulfur doping or oxidation reaction on the FeNi-LDHs/MOF/NF nanometer array composite material obtained in the step 2 to obtain the foam nickel-loaded iron-nickel-based composite material. According to the invention, the preparation method is simple to operate, the raw materials are easy to obtain, and the reaction conditions are easy to achieve.

Description

technical field [0001] The invention relates to the technical field of nanocomposite materials, in particular to a method for preparing foamed nickel-loaded iron-nickel-based composite materials. Background technique [0002] With the continuous aggravation of environmental pollution and energy crisis, the demand for environmentally friendly adsorption materials and efficient energy storage materials is increasing. At present, the world is in urgent need of new materials that can simultaneously meet the two major problems of environmental governance and new energy development. Layered double hydroxides (Layered Double Hydroxides, referred to as LDHs), is a clay material composed of different double metal hydroxides and has a layered microstructure. The exchangeability of metal ions and interlayer anions has become a research hotspot in the fields of water environment treatment and electrochemical energy storage in recent years. [0003] FeNi-LDHs is a typical layered doubl...

Claims

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Application Information

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IPC IPC(8): B01J27/185
CPCB01J27/1853B01J35/10B01J35/1004Y02E60/36
Inventor 王建芝喻发全陈晨薛亚楠蔡宁刘捷李辉
Owner WUHAN INSTITUTE OF TECHNOLOGY
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