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Cu-MOF material for electrocatalytic reduction of CO2 and preparation method of Cu-MOF material

An electrocatalysis, CO2 technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of low yield, poor catalyst stability, low selectivity of catalytic products, etc., to achieve extended durability and good industrial application prospects. , the effect of improving the catalytic rate and selectivity

Active Publication Date: 2021-09-07
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, direct use of transition metals as catalysts has disadvantages. Although Cu-based catalysts can convert CO 2 Converted to alkane products, but the selectivity of the catalytic product is low, the yield is low, and the stability of the catalyst is not good

Method used

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  • Cu-MOF material for electrocatalytic reduction of CO2 and preparation method of Cu-MOF material
  • Cu-MOF material for electrocatalytic reduction of CO2 and preparation method of Cu-MOF material
  • Cu-MOF material for electrocatalytic reduction of CO2 and preparation method of Cu-MOF material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Take 5g of 3,4,9,10-perylenetetraic acid dianhydride, add it to 100mL N,N-dimethylformamide solution, stir and then add dropwise 15mL 1-(3-aminopropyl)imidazole , heated to 140°C, condensed and refluxed, stirred at a constant temperature in an inert gas environment for 12 hours, filtered and washed with tetrahydrofuran to remove 1-(3-aminopropyl)imidazole remaining on the surface, put it into a vacuum oven, raised to 60°C, and kept at a constant temperature Drying for 8 hours to remove residual THF gave the PDI product as a red powder.

[0028] (2) Get 4g of the PDI prepared in step (1), add 300mL of chloroform solution, seal and sonicate for 0.5h, obtain the chloroform supersaturated solution of PDI, filter with a sand core filter, remove the filter cake, collect The filtrate with fluorescent color is a chloroform saturated solution of PDI;

[0029] Dissolve an appropriate amount of copper chloride dihydrate in methanol to prepare a methanol solution of copper chl...

Embodiment 2

[0035](1) Take 3g of 3,4,9,10-perylenetetraic acid dianhydride, add it to 100mL N,N-dimethylformamide solution, stir and then add 10mL 1-(3-aminopropyl)imidazole dropwise, Heat up to 140°C, condense and reflux, stir at constant temperature for 12 hours in an inert gas environment, filter and wash with tetrahydrofuran to remove 1-(3-aminopropyl)imidazole remaining on the surface, put it in a vacuum oven, heat up to 60°C, and dry at constant temperature 8 hours to remove residual THF to give the PDI product as a red powder.

[0036] (2) Get 2g of the PDI prepared in step (1), add 150mL of chloroform solution, seal and sonicate for 0.5h, obtain the chloroform supersaturated solution of PDI, filter with a sand core filter, remove the filter cake, and collect The filtrate with fluorescent color is a chloroform saturated solution of PDI;

[0037] Dissolve an appropriate amount of copper chloride dihydrate in methanol to prepare a methanol solution of copper chloride dihydrate with ...

Embodiment 3

[0041] (1) Take 4g of 3,4,9,10-perylenetetraic acid dianhydride, add it to 50mL N,N-dimethylformamide solution, stir and then add dropwise 10mL 1-(3-aminopropyl)imidazole , heated to 120°C, condensed and refluxed, stirred at a constant temperature in an inert gas environment for 16 hours, filtered and washed with tetrahydrofuran to remove 1-(3-aminopropyl)imidazole remaining on the surface, put it into a vacuum oven, raised to 80°C, and kept at a constant temperature Drying for 4 hours to remove residual THF gave the PDI product as a red powder.

[0042] (2) Get 4g of the PDI prepared in step (1), add 300mL of chloroform solution, seal and sonicate for 1h, obtain the chloroform supersaturated solution of PDI, filter with a sand core filter, remove the filter cake, and collect The filtrate of fluorescent color is a chloroform saturated solution of PDI;

[0043] Dissolve an appropriate amount of copper chloride dihydrate in methanol to form a methanol solution of copper chlorid...

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Abstract

The invention discloses a Cu-MOF material for electrocatalytic reduction of CO2 and a preparation method of the Cu-MOF material, and belongs to the technical field of electrocatalytic reduction. The preparation method comprises the following steps: dissolving 3, 4, 9, 10-perylenetetracarboxylic dianhydride by taking N, N-dimethylformamide as a solvent, reacting with 1-(3-aminopropyl) imidazole to generate perylenetetracarboxylic acid di (propyl imidazole), namely PDI, washing and drying; dissolving the obtained PDI in a chloroform solution, and filtering to obtain a chloroform saturated solution of the PDI; and finally, placing the chloroform saturated solution of PDI and the methanol solution of copper chloride in a closed container, heating to 40-80 DEG C, carrying out constant-temperature reaction for 2-6 hours, carrying out solid-liquid separation to obtain a precipitate, washing, and drying to obtain the Cu-MOF material for electrocatalytic reduction of CO2. The Cu-MOF material prepared by the preparation method disclosed by the invention has good catalytic activity and stability on electrocatalytic reduction of CO2. The preparation technology is simple in process and low in equipment requirement, and has a very good industrial application prospect.

Description

technical field [0001] The invention relates to an electrocatalytic reduction of CO 2 A Cu-MOF material and a preparation method thereof belong to the field of electrocatalytic reduction. Background technique [0002] As the world population grows and industrialization expands, CO 2 Emissions are increasing year by year, and the greenhouse effect caused by it has brought problems such as rising sea levels, melting glaciers, and decreasing species of animals and plants. As a result, attempts are increasingly being made to recycle CO2, as it is not a waste material but an abundant and inexpensive carbon source that can be used to produce value-added chemicals. [0003] How to convert carbon dioxide into value-added chemicals is one of the hot topics of current research. At present, there are several ways to convert carbon dioxide through chemical conversion, including thermal catalysis, photocatalysis, and electrocatalysis. Electrocatalysis is currently recognized in the w...

Claims

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Application Information

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IPC IPC(8): C25B11/04C25B1/23
CPCC25B11/04C25B1/23
Inventor 张颖归家宁杨蓝翔娄阳潘成思朱永法
Owner JIANGNAN UNIV
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