Novel center-radial nickel-carbon catalytic material as well as preparation method and application thereof

A catalytic material and radial technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of harsh reaction conditions and increase the economic cost of industrial production. , to achieve the effect of promoting diffusion, high reuse rate, and accelerating adsorption activation

Pending Publication Date: 2022-05-31
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although nickel-based metal catalysts can achieve high selectivity, harsh reaction conditions are required, such as: reaction hydrogen pressure and reaction temperature, which greatly increase the economic cost of industrial production

Method used

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  • Novel center-radial nickel-carbon catalytic material as well as preparation method and application thereof
  • Novel center-radial nickel-carbon catalytic material as well as preparation method and application thereof
  • Novel center-radial nickel-carbon catalytic material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a center-radiating novel nickel-carbon catalytic material, characterized in that it comprises the following steps:

[0038] Step 1, preparation of precursor: take 4 mmol of nickel acetate as nickel salt and add it to 25 mL of water to obtain solution a; take 4 mmol of 2,5-dihydroxy-1,4-terephthalic acid as an organic ligand and add it to 25 mL of water to obtain solution b ;

[0039]Mix solution a and solution b, stir evenly, transfer to a polytetrafluoroethylene reactor, heat up to 160°C, and react for 5 hours; after the reaction is completed, centrifuge the precipitate after the temperature drops to room temperature, and wash it with deionized water After 3 times, dry at 80°C for 12 hours to obtain a brownish-yellow powder, which is the MOF precursor;

[0040] Step 2: Place 0.4 g of the MOF precursor obtained in Step 1 in a tube furnace, and under the protection of a nitrogen atmosphere of 50 mL / min, raise the temperature from room temperature ...

Embodiment 2

[0043] A method for preparing a center-radiating novel nickel-carbon catalytic material, characterized in that it comprises the following steps:

[0044] Step 1, preparation of the precursor: take 4 mmol of nickel acetate as nickel salt and add it to 25 mL of water to obtain solution a; take 4 mmol of 1,4-terephthalic acid as an organic ligand and add it to 25 mL of water to obtain solution b;

[0045] Mix solution a and solution b, stir evenly, transfer to a polytetrafluoroethylene reactor, heat up to 160°C, and react for 5 hours; after the reaction is completed, centrifuge the precipitate after the temperature drops to room temperature, and wash it with deionized water After 3 times, dry at 80°C for 12 hours to obtain a brownish-yellow powder, which is the MOF precursor;

[0046] Step 2: Place 0.4 g of the MOF precursor obtained in Step 1 in a tube furnace, and under the protection of a nitrogen atmosphere of 50 mL / min, raise the temperature from room temperature to 300 °C a...

Embodiment 3

[0048] A method for preparing a center-radiating novel nickel-carbon catalytic material, characterized in that it comprises the following steps:

[0049] Step 1, preparation of the precursor: take 4mmol of nickel sulfate as nickel salt and add it to 25mL of water to obtain solution a; take 4mmol of 2,5-dihydroxy-1,4-terephthalic acid as an organic ligand and add it to 25mL of water to obtain solution b ;

[0050] Mix solution a and solution b, stir evenly, transfer to a polytetrafluoroethylene reactor, heat up to 160°C, and react for 5 hours; after the reaction is completed, centrifuge the precipitate after the temperature drops to room temperature, and wash it with deionized water After 3 times, dry at 80°C for 12 hours to obtain a brownish-yellow powder, which is the MOF precursor;

[0051] Step 2: Place 0.4 g of the MOF precursor obtained in Step 1 in a tube furnace, and under the protection of a nitrogen atmosphere of 50 mL / min, raise the temperature from room temperature...

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Abstract

The invention relates to the technical field of fine chemical engineering, in particular to a center-radial novel nickel-carbon catalytic material, the nickel-carbon catalytic material is a composite material obtained by uniformly dispersing Ni nanoparticles in an incompletely carbonized MOF framework, the external morphology of the nickel-carbon catalytic material is a hexagonal rod morphology, and the interior of the nickel-carbon catalytic material is of a center-radial structure; the nickel-carbon catalytic material is of a hierarchical pore structure, the specific surface area is 250-900 m < 2 >/g, and the pore volume is 0.7-1.05 cm < 3 >/g. The nickel-carbon catalytic material is large in specific surface area, has central radial internal pore channels, can provide more catalytic active sites for reactant molecules, and can promote efficient adsorption and activation of the reactant molecules, so that the selectivity of a target product is improved under mild conditions. Meanwhile, the invention provides a preparation method and application of the compound.

Description

technical field [0001] The invention relates to the technical field of fine chemical industry, in particular to a new-type nickel-carbon catalytic material with a center radial shape and a preparation method and application thereof. Background technique [0002] As an important platform molecule, furfural can be converted into various fine chemicals, including furfuryl alcohol, tetrahydrofurfuryl alcohol, furan, 2-methylfuran, 2-methyltetrahydrofuran and other products; among them, tetrahydrofurfuryl alcohol can not only be used as many A green solvent for organic reactions, but also considered a biodegradable furan-based chemical widely used in agriculture and industry, such as industrial resins and fuel additives. However, due to the complexity of the furfural hydrogenation reaction route, it is usually difficult to control and obtain tetrahydrofurfuryl alcohol with high selectivity. [0003] In the early days, low-cost Cu-Cr catalysts were used in the industrial producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J35/10C07D307/12
CPCB01J23/755B01J35/0013B01J35/0093B01J35/1019B01J35/1047B01J35/1057B01J35/1061C07D307/12Y02E60/50
Inventor 赵学波付秋菊牛纬静闫理停陈瑞华刘丹丹
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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