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Method for preparing iron-carbon microsphere material and use thereof

A technology of microspheres and iron-carbon, applied in the field of material science, can solve the problems of expensive carbon nanotubes and complex catalyst loading methods

Inactive Publication Date: 2011-07-20
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotubes are expensive and the catalyst loading method is relatively complicated.

Method used

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  • Method for preparing iron-carbon microsphere material and use thereof
  • Method for preparing iron-carbon microsphere material and use thereof
  • Method for preparing iron-carbon microsphere material and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: Preparation of glucose-based iron carbon microsphere material

[0025] Dissolve 3.75 g glucose in 20 ml deionized water, 4.545 g Fe(NO 3 ) 3 9H 2 O was dissolved in 10 ml of deionized water, mixed rapidly, and transferred to a teflon-lined hydrothermal kettle. Put the hydrothermal kettle in an oven at 80°C for hydrothermal synthesis for a certain period of time, then take it out to cool naturally, filter, wash, and dry. The morphology of the obtained samples is as figure 1 As shown, the TEM photograph of its microscopic morphology is shown in figure 2 shown.

Embodiment 2

[0026] Embodiment 2: Preparation of sucrose-based iron carbon microsphere material

[0027] Dissolve 3.75 g sucrose in 20 ml deionized water, 4.545 g Fe(NO 3 ) 3 9H 2 O was dissolved in 10 ml of deionized water, mixed rapidly, and transferred to a teflon-lined hydrothermal kettle. Put the hydrothermal kettle in an oven at 80°C for hydrothermal synthesis for a certain period of time, then take it out to cool naturally, filter, wash, and dry. The morphology of the obtained samples is as image 3 shown.

Embodiment 3

[0028] Embodiment 3: Preparation of fructose-based iron carbon microsphere material

[0029] Dissolve 3.75 g fructose in 20 ml deionized water, 4.545 g Fe(NO 3 ) 3 .9H 2 O was dissolved in 10 ml of deionized water, mixed rapidly, and transferred to a teflon-lined hydrothermal kettle. Put the hydrothermal kettle in an oven at 80°C for hydrothermal synthesis for a certain period of time, then take it out to cool naturally, filter, wash, and dry. The morphology of the obtained samples is as Figure 4 shown.

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Abstract

The invention belongs to the field of material science, and relates to a method for preparing an iron-carbon microsphere material, in particular to a method for preparing an iron-carbon microsphere material for Fischer-Tropsch synthesis. The iron-carbon microsphere material is prepared from aqueous solution containing saccharides and ferric salts under the hydrothermal condition by a one-step reaction, and has a unique microstructure that iron oxide nano particles are dispersed into carbon microspheres uniformly. When used for the Fischer-Tropsch synthesis, a catalyst prepared from the iron-carbon microsphere material has the advantages of higher selectivity and stability and the like of hydrocarbon having over five carbon atoms compared with an unmodified iron catalyst reported in the prior art.

Description

technical field [0001] The invention belongs to the field of material science, and relates to a method for preparing an iron-carbon microsphere material, in particular to a preparation method for an iron-carbon microsphere material used for Fischer-Tropsch synthesis. Background technique [0002] Carbon materials, such as carbon nanotubes, carbon nanofibers, carbon nanorods, carbon spheres, activated carbon, etc., have received increasing attention in the fields of electricity, magnetism, optics, catalysis, and drug delivery due to their unique physical and chemical properties. focus on. However, at present, the preparation of carbon materials is generally carried out under relatively harsh conditions, such as high temperature, high pressure, high energy, expensive raw materials and complicated preparation processes, etc., and these methods usually cause environmental pollution. Therefore, it is of great significance to find a carbon material preparation method with low raw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J35/08C10G2/00
Inventor 乔明华禹国宾孙博
Owner FUDAN UNIV
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