A kind of loaded ultra-small Prussian blue analogue and its preparation method and application

A technology of Prussian blue and analogs, applied in the field of supported ultra-small Prussian blue analogs and their preparation, can solve problems such as unseen Prussian blue structures, and achieve the effects of high catalytic activity, mild reaction conditions, and improved electrical capability.

Active Publication Date: 2022-04-01
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this stage, there is no report on the application of Prussian blue structure in nitrogen fixation reaction

Method used

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  • A kind of loaded ultra-small Prussian blue analogue and its preparation method and application
  • A kind of loaded ultra-small Prussian blue analogue and its preparation method and application
  • A kind of loaded ultra-small Prussian blue analogue and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method of graphene-loaded ultra-small Prussian blue analogues specifically comprises the following steps:

[0038] a) The trivalent metal compound, the divalent metal compound, the first solvent, the ligand and graphene are mixed and reacted and washed to prepare the graphene-loaded ultra-small Prussian blue analogue; the trivalent metal compound, the divalent metal source compound, The weight ratio of the first solvent, ligand and graphene is 5:5:4000:10:1; the reaction conditions are: reaction temperature 100°C, reaction time 2 days;

[0039] b) Disperse the graphene-loaded ultra-small Prussian blue analogue in the first solvent, and add a reducing agent and an alkaline solution to mix and react to prepare the graphene-loaded ultra-small Prussian blue analogue after graphene reduction; graphene-loaded The weight ratio of the ultra-small Prussian blue analogue, the first solvent, the reducing agent, and the basic drug is 4000:50000:150:1; the reaction con...

Embodiment 2

[0043] A preparation method of graphene-loaded ultra-small Prussian blue analogues specifically comprises the following steps:

[0044] a) The trivalent metal compound, the divalent metal compound, the first solvent, the ligand and graphene are mixed and reacted and washed to prepare the graphene-loaded ultra-small Prussian blue analogue; the trivalent metal compound and the divalent metal source compound, The weight ratio of the first solvent, ligand and graphene is 1:5:1000:10:1; the reaction conditions are: reaction temperature 10°C, reaction time 7 days;

[0045] b) Disperse the graphene-loaded ultra-small Prussian blue analogue in the first solvent, and add a reducing agent and an alkaline solution to mix and react to prepare the graphene-loaded ultra-small Prussian blue analogue after graphene reduction; graphene-loaded The weight ratio of the ultra-small Prussian blue analogue, the first solvent, the reducing agent, and the basic drug is 5000:50000:200:1; the reaction c...

Embodiment 3

[0049] A preparation method of graphene-loaded ultra-small Prussian blue analogues specifically comprises the following steps:

[0050] a) The trivalent metal compound and the divalent metal compound, the first solvent, the ligand and graphene are mixed and reacted and washed to prepare the graphene-loaded ultra-small Prussian blue analogue; the trivalent metal compound and the divalent metal source compound, The weight ratio of the first solvent, ligand and graphene is 10:9:5000:10:1; the reaction conditions are: reaction temperature 180°C, reaction time 1 day;

[0051] b) Dispersing the graphene-loaded ultra-small Prussian blue analog in the first solvent, adding a reducing agent and an alkaline solution to mix and react to prepare the graphene-loaded ultra-small Prussian blue analog after graphene reduction. The weight ratio of the ultra-small Prussian blue analogue loaded on graphene, the first solvent, the reducing agent, and the basic drug is 10000:50000:150:1; the react...

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Abstract

A loaded ultra-small Prussian blue analogue and its preparation method and application belong to the technical field of functional nanomaterials. The preparation method comprises the following steps: 1) react trivalent metal compound, divalent metal compound, first solvent, ligand and graphene, and prepare graphene-loaded ultra-small Prussian blue analogue after mixing and washing; 2) graphite The turbid liquid of the graphene-loaded ultra-small Prussian blue analogue is dispersed in the first solvent, and a reducing agent and an alkaline solution are added for a mixed reaction to obtain a graphene-loaded ultra-small Prussian blue analogue after graphene reduction. The invention can realize the synthesis of graphene-loaded ultra-small Prussian blue analogs, and can realize the synthesis of ultra-small Prussian blue analogs. The loaded ultra-small Prussian blue analogue prepared by the invention is a composite structure of the Prussian blue analogue and graphene, which can improve the electricity receiving ability of the catalyst.

Description

technical field [0001] The invention belongs to the technical field of functional nanomaterials, and in particular relates to a loaded ultra-small Prussian blue analogue and its preparation method and application. Background technique [0002] Chemical nitrogen fixation refers to the synthesis of ammonia from nitrogen through chemical reduction to obtain a series of downstream nitrogen-containing products. The methods of chemical nitrogen fixation include thermal catalysis, photocatalysis, electrocatalytic nitrogen fixation and so on. Now, the nitrogen fixation method widely used in industry is the Haber method, which uses iron catalyst as a catalyst to catalyze N 2 and H 2 The reaction produces ammonia gas. Since ammonia synthesis by the Haber method requires harsh conditions such as high temperature and high pressure, and the hydrogen needed in the ammonia synthesis industry comes from water gas reforming, which also consumes a large amount of energy, the ammonia synthe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28B82Y30/00B82Y40/00C25B1/27C25B11/065C25B11/085
CPCB01J31/28B82Y30/00B82Y40/00C25B1/00B01J2531/0213B01J2531/845B01J2531/847B01J2531/821C25B11/091
Inventor 叶伟钮敏权方泽平
Owner HANGZHOU NORMAL UNIVERSITY
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