A method for preparing 2,5-furandimethanol by electrocatalytic hydrogenation of carbon-coated copper nitride nanowire catalyst

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

Active Publication Date: 2022-05-13
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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  • A method for preparing 2,5-furandimethanol by electrocatalytic hydrogenation of carbon-coated copper nitride nanowire catalyst
  • A method for preparing 2,5-furandimethanol by electrocatalytic hydrogenation of carbon-coated copper nitride nanowire catalyst
  • A method for preparing 2,5-furandimethanol by electrocatalytic hydrogenation of carbon-coated copper nitride nanowire catalyst

Examples

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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 copper foam turned from orange to blue to obtain the precursor catalyst copper hydroxide, which was recorded as Cu(OH) 2 ...

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 preparing 2,5-furandimethanol by electrocatalytic hydrogenation of a carbon-coated copper nitride nanowire catalyst. An H-shaped electrolytic cell is used for the reaction. In the anode chamber, a platinum sheet is used as a counter electrode, and the acid The solution is used as the anolyte; in the cathode chamber, the carbon-coated copper nitride nanowire catalyst is directly used as the working electrode, and 5-hydroxymethylfurfural is dissolved in the acidic solution as the catholyte. The temperature is 25-80°C and the current is 10‑100mA, cell voltage 1‑10V, electrocatalytic hydrogenation reaction, reaction time 1‑5h, after the reaction, the reaction liquid is post-treated to obtain 2,5‑furandimethanol (BHMF). The process method of the present invention has mild electrocatalytic hydrogenation reaction process conditions, is green and pollution-free, has a high conversion rate of raw materials, and has a good selectivity of BHMF. Copper oxide nanowire catalysts are less expensive.

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 Patents(China)
IPC IPC(8): B01J27/24C07D307/42
CPCB01J27/24B01J35/0033C07D307/42
Inventor 王建国李随勤钟兴
Owner ZHEJIANG UNIV OF TECH
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