An electrocatalytic reduction of CO 2 Cu-mof material and preparation method thereof

An electrocatalysis, CO2 technology, applied in electrodes, electrolysis components, electrolysis processes, etc., can solve the problems of low selectivity of catalytic products, low yield, poor catalyst stability, etc., to improve catalytic rate and selectivity, prolong Durability, the effect of good industrial application prospects

Active Publication Date: 2022-03-15
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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  • An electrocatalytic reduction of CO <sub>2</sub> Cu-mof material and preparation method thereof
  • An electrocatalytic reduction of CO <sub>2</sub> Cu-mof material and preparation method thereof
  • An electrocatalytic reduction of CO <sub>2</sub> Cu-mof material and preparation method thereof

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 an electrocatalytic reduction of CO 2 The Cu-MOF material and preparation method thereof belong to the technical field of electrocatalytic reduction. Dissolve 3,4,9,10-perylenetetracarboxylic dianhydride in N,N-dimethylformamide as solvent, and react with 1-(3-aminopropyl)imidazole to generate perylenetetracarboxylic acid bis(propylimidazole) , that is, PDI, dried after washing; then the obtained PDI was dissolved in chloroform solution, filtered to obtain a saturated solution of chloroform of PDI; finally the saturated solution of chloroform of PDI and the methanol solution of copper chloride were placed in a closed container, heated to 40- 80°C, constant temperature reaction for 2‑6h, solid-liquid separation to obtain precipitation, washing and drying to obtain electrocatalytic reduction of CO 2 Cu‑MOF materials. The Cu-MOF material prepared by the present invention has the effect on CO 2 The electrocatalytic reduction has good catalytic activity and stability. Moreover, the preparation process is simple, the requirement for equipment is low, and the invention has 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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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/091C25B1/23
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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