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Method for producing 2,5-furandimethanol through carbon-coated copper nitride nanowire catalyst and electrocatalytic hydrogenation

A copper nitride nanometer, electrocatalytic hydrogenation technology, applied in physical/chemical process catalysts, chemical instruments and methods, organic chemistry and other directions, can solve the problems of complex production process, high catalyst cost and high reaction efficiency, and achieve the conversion of raw materials High yield, high product yield and good selectivity

Active Publication Date: 2019-11-12
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned problems existing in the prior art, the object of the present invention is in order to overcome the problems such as the use raw material and catalyst cost that exist in current existing 2,5-furandimethanol (BHMF) synthesis technique, complex production process, Provided is a method for preparing 2,5-furandimethanol by electrocatalytic hydrogenation of a carbon-coated copper nitride nanowire catalyst, the process is green and environmentally friendly, the production process is simple, the catalyst cost is low, and the reaction efficiency is high

Method used

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  • Method for producing 2,5-furandimethanol through carbon-coated copper nitride nanowire catalyst and electrocatalytic hydrogenation
  • Method for producing 2,5-furandimethanol through carbon-coated copper nitride nanowire catalyst and electrocatalytic hydrogenation
  • Method for producing 2,5-furandimethanol through carbon-coated copper nitride nanowire catalyst and electrocatalytic hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Synthesis of NC@CuN / CF catalyst and its electrocatalytic hydrogenation of HMF to BHMF

[0034] (1) preparation concentration is the sodium hydroxide of 5mol / L, the ammonium persulfate aqueous solution of preparation 0.25mol / L, standby;

[0035] (2) According to the volume ratio of 1:1, respectively take the 5mol / L sodium hydroxide solution of 20mL obtained in step 1) and the 0.25mol / L ammonium persulfate solution of 20mL obtained in step 1), and then mix and stir the two solutions until The solution is clear;

[0036] (3) Take the pretreated foamed copper carrier (pretreatment is a conventional treatment method, sonicate under acidic conditions for 10 minutes, then use acetone, ethanol and water to sonicate for 30 minutes, and finally wash with water and dry) and add it to step 2 ) reacted in the solution obtained for 30 minutes, and the foamed copper changed from orange to blue to obtain the precursor catalyst copper hydroxide, which was recorded as Cu(OH) ...

Embodiment 2

[0045] Example 2: C@Cu(OH) 2 Synthesis of / CF Catalyst and Its Electrocatalytic Hydrogenation of HMF to BHMF

[0046] (1) preparation concentration is the potassium hydroxide of 2mol / L, the ammonium persulfate aqueous solution of preparation 0.5mol / L, standby;

[0047] (2) According to the volume ratio of 1:1, respectively take the 2mol / L sodium hydroxide solution of 20mL obtained in step 1) and the 0.5mol / L ammonium persulfate solution of 20mL obtained in step 1), and then mix and stir the two solutions until The solution is clear;

[0048] (3) Take the pretreated foamed copper carrier (pretreatment is a conventional treatment method, sonicate under acidic conditions for 10 minutes, then use acetone, ethanol and water to sonicate for 30 minutes, and finally wash with water and dry) and add it to step 2 ) reacted in the solution obtained for 30 minutes, and the copper foam turned from orange to blue to obtain the precursor catalyst copper hydroxide, which was recorded as Cu(...

Embodiment 3

[0055] Example 3: Cu(OH) 2 Synthesis of / CF Catalyst and Its Electrocatalytic Hydrogenation of HMF to BHMF

[0056] (1) preparation concentration is the barium hydroxide of 3mol / L, the ammonium persulfate aqueous solution of preparation 0.1mol / L, standby;

[0057] (2) According to the volume ratio of 1:1, respectively take the 3mol / L sodium hydroxide solution of 20mL obtained in step 1) and the 0.1mol / L ammonium persulfate solution of 20mL obtained in step 1), and then mix and stir the two solutions until The solution is clear;

[0058] (3) Take the pretreated foamed copper carrier (pretreatment is a conventional treatment method, sonicate under acidic conditions for 10 minutes, then use acetone, ethanol and water to sonicate for 30 minutes, and finally wash with water and dry) and add it to step 2 ) reacted in the solution obtained for 30 minutes, and the copper foam turned from orange to blue to obtain the precursor catalyst copper hydroxide, which was recorded as Cu(OH) ...

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Abstract

The invention discloses a method for producing 2,5-furandimethanol through a carbon-coated copper nitride nanowire catalyst and electrocatalytic hydrogenation. An H-shaped electrolytic cell is adoptedfor a reaction, in an anode chamber, a platinum sheet is used as a counter electrode, and an acid solution is used as anolyte; and in a cathode chamber, the carbon-coated copper nitride nanowire catalyst is directly used as a working electrode, a solution obtained by dissolving 5-hydroxymethylfurfural in an acid solution is used as catholyte, under conditions of temperature of 25-80 DEG C, current of 10-100 mA and cell voltage of 1-10 V, the electrocatalytic hydrogenation reaction is carried out, reaction time is 1-5 h, and after the reaction is completed, post-treatment is conducted on reaction liquid to obtain the 2,5-furandimethanol (BHMF). According to the technology method, the electrocatalytic hydrogenation reaction process is mild in condition, environmentally friendly and pollution-free, the conversion rate of the raw material (5-hydroxymethylfurfural) is high, the BHMF selectivity is good, and compared with noble metal catalysts which are commonly adopted in the prior art, the carbon-coated copper nitride nanowire catalyst used in the technology method is low in cost.

Description

technical field [0001] The invention relates to a synthesis method of organic chemical products, in particular to a method for preparing 2,5-furandimethanol through electrocatalytic hydrogenation of a carbon-coated copper nitride nanowire catalyst. Background technique [0002] 2,5-furandimethanol (BHMF for short) is a high value-added diol, which has important applications in the synthesis of fine chemicals, the preparation of new functionalized polyethers, polyurethanes and polyheterocyclic compounds for pharmaceuticals. For the reaction of sugars (mainly glucose and fructose) to prepare 2,5-furandimethanol, it is still mainly in the stage of multi-step reaction system research, so the reaction will involve more separation and purification steps, which will not only increase equipment investment costs, Moreover, the organic solvents used also increase the difficulty of handling and the possibility of polluting the environment. In addition, the traditional thermal catalyti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C07D307/42
CPCB01J27/24C07D307/42B01J35/33
Inventor 王建国李随勤钟兴
Owner ZHEJIANG UNIV OF TECH
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