Electrocatalyst for electrochemical reduction of carbon dioxide, and preparation and application thereof

An electrocatalyst, carbon dioxide technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of less application research, and achieve the effects of low price, simple and easy preparation method, and wide source of raw materials

Active Publication Date: 2018-03-27
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few studies on the application of this material in ERC technology.

Method used

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  • Electrocatalyst for electrochemical reduction of carbon dioxide, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 0.05g of ferric phthalocyanine, add 1g of N-methylpyrrolidone as a solvent, vibrate and mix in ultrasonic until uniform, and prepare A; take 6mg of phenol, add 20 times its weight to ethanol, vibrate and mix until uniform in ultrasonic , to prepare B; add B dropwise to A, then react at 140°C for 3h under nitrogen protection, cool to room temperature, filter and wash the material; then put the material into a ball mill and mill at 500rpm for 4h;

[0031] A phenol-ferrophthalocyanine composite electrocatalyst was prepared.

Embodiment 2

[0033] Take 0.1g of cobalt phthalocyanine, add 2g of N-methylpyrrolidone as a solvent, oscillate and mix in ultrasonic waves until uniform, and prepare A; take 5.26mg of phenol, add 10 times its weight to ethanol, and oscillate and mix in ultrasonic waves until Prepare B; add B dropwise to A, then react at 140°C for 3 hours under nitrogen protection, cool to room temperature, filter and wash the material; then put the material into a ball mill and mill at 500rpm for 4 hours;

[0034] The phenol-phthalocyanine cobalt composite catalyst was prepared.

Embodiment 3

[0036] Take 0.05g of vitamin B12, add 1.0g of dimethyl sulfoxide as a solvent, oscillate and mix until uniform in ultrasonic waves, and prepare A; take 3mg of resorcinol, add 20 times its weight to ethanol, and oscillate in ultrasonic waves Mix until uniform to prepare B; add B dropwise to A, then react at 130°C for 2 hours under nitrogen protection, cool to room temperature, filter and wash the material; then put the material into a ball mill and mill at 400rpm for 4 hours;

[0037] The resorcinol-vitamin B12 composite catalyst was prepared.

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PUM

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Abstract

The invention relates to an electrocatalyst for electrochemical reduction of carbon dioxide and a preparation method thereof. The electrocatalyst for electrochemical reduction of carbon dioxide is composed of one or more than two selected from metallorganic compounds and one or more than two selected from aromatic compounds containing -OH. The aromatic compounds interact with the metallorganic compounds via -OH to reduce the valence, C-N bond strength and electronic structure of the metallorganic compounds, so the amount of active sites is increased, and the adsorption strength of reactants and intermediates on the surface of the electrocatalyst are regulated; and thus, the activity and selectivity of the electrocatalyst are improved.

Description

technical field [0001] This aspect relates to the technical field of carbon dioxide electrochemical reduction, in particular to a catalyst for carbon dioxide electrochemical reduction. Background technique [0002] Energy is an important material basis for national economic development and people's lives. At present, my country's economy and society are in a stage of rapid development, and the demand for energy continues to increase. CO 2 Gas emissions are also increasing. Therefore, how to reduce CO 2 emissions, effective use of CO 2 It has become a research hotspot in recent years. [0003] CO 2 There are three main methods of emission reduction and utilization: (1) capture and storage, CO 2 Underground storage after capture by chemical or physical adsorption; (2) chemical conversion, including catalytic hydrogenation and reforming, that is, under the action of a catalyst, CO 2 Chemical reaction with other chemical raw materials to synthesize valuable chemicals, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/06C25B3/04C25B3/25
CPCC25B11/04C25B3/25
Inventor 钟和香张华民邱艳玲李先锋张桃桃
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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