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Loaded ultra-small Prussian blue analog and preparation method and application thereof

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, achieve simple process, realize large-scale production of catalysts, and mild reaction conditions. Effect

Active Publication Date: 2019-09-17
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Loaded ultra-small Prussian blue analog and preparation method and application thereof
  • Loaded ultra-small Prussian blue analog and preparation method and application thereof
  • Loaded ultra-small Prussian blue analog and preparation method and application thereof

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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PUM

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Abstract

The invention discloses a loaded ultra-small Prussian blue analog and a preparation method and application thereof, belonging to the technical field of functional nanomaterials. The preparation method comprises the following steps: 1) mixing a trivalent metal compound, a divalent metal compound, a first solvent, a ligand and graphene for reaction and washing to prepare a graphene-loaded ultra-small Prussian blue analog; (2) dispersing a graphene-loaded ultra-small Prussian blue analog turbid liquid in the first solvent, and adding a reducing agent and an alkaline solution for mixing and reacting to prepare the graphene-loaded ultra-small Prussian blue analog after graphene reduction. The method can realize the synthesis of the graphene loaded ultra-small Prussian blue analog and the synthesis of the ultra-small Prussian blue analog. The loaded ultra-small Prussian blue analog prepared by the method is a Prussian blue analog and graphene composite structure, and can improve the electricity receiving capacity 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 Applications(China)
IPC IPC(8): B01J31/28B82Y30/00B82Y40/00C25B1/00C25B11/06
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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