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Halogen-doped basic copper chloride compound as well as preparation method and application thereof

A copper chloride and compound technology, which is applied in the field of halogen-doped basic copper chloride catalyst precursor and its preparation, can solve the problems of many competing products, high selectivity difficulties, complex reaction paths, etc.

Pending Publication Date: 2020-10-20
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complex reaction pathway of electrocatalytic carbon dioxide reduction and numerous competing products, it is extremely difficult to achieve high selectivity for a single product.

Method used

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  • Halogen-doped basic copper chloride compound as well as preparation method and application thereof
  • Halogen-doped basic copper chloride compound as well as preparation method and application thereof
  • Halogen-doped basic copper chloride compound as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] (1) Preparation of bromine-doped basic copper chloride compound by sol-gel method: Weigh 0.3g of copper dichloride (CuCl 2 ) and 0.03 g of potassium bromide (K bromide), dissolved in a mixed solvent of 4 mL of ethanol and 0.5 mL of deionized water. Then, 1 mL of propylene oxide was added dropwise to the solution and mixed well by shaking. After the solution was allowed to stand for 1 day, 30 mL of acetone was added and allowed to stand for 5 days, and the precipitated product was washed with acetone. After the product is dried, grinding can obtain such as figure 1 a, b, figure 2 a, b, c and image 3 Bromine-doped basic copper chloride shown in a and c.

[0023] (2) Preparation of bromine-doped basic copper chloride compound electrode: Disperse 10 mg of the compound material in a mixed solvent of 1 mL of ethanol and water (volume ratio 1 / 4), and add 80 μL of 5% perfluorosulfur Acid-type polymer solution, after ultrasonication for 30 minutes, the catalyst slurry was...

Embodiment 2

[0025] (1) Preparation of iodine-doped basic copper chloride by sol-gel method: Weigh 0.3g of copper dichloride (CuCl 2 ) and 0.03 g potassium iodide (KI), dissolved in a mixed solvent of 4 mL ethanol and 0.5 mL deionized water. Then, 1 mL of propylene oxide was added dropwise to the solution and mixed well by shaking. After the solution was allowed to stand for 1 day, 30 mL of acetone was added and allowed to stand for 5 days, and the precipitated product was washed with acetone. After the product is dried, grinding can obtain such as figure 1 c, d, figure 2 d, e, f and image 3 Iodine-doped basic copper chloride shown in b and d.

[0026] (2) Preparation of iodine-doped basic copper chloride compound electrode: Disperse 10 mg of the compound material in a mixed solvent of 1 mL of ethanol and water (volume ratio 1 / 4), and add 80 μL of 5% perfluorosulfur Acid-type polymer solution, after ultrasonication for 30 minutes, the catalyst slurry was drop-coated on the glassy ca...

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Abstract

The invention belongs to the technical field of electrocatalytic carbon dioxide reduction, and particularly relates to a catalyst precursor halogen-doped basic copper chloride compound for electrocatalytic carbon dioxide reduction reaction as well as a preparation method and application thereof. The halogen-doped basic copper chloride compound is prepared by a sol-gel method, halogen is bromine oriodine, and the content is 1%-20%. The prepared halogen-doped basic copper chloride can be used as a precursor of an electrocatalytic carbon dioxide reduction reaction catalyst for preparing an electrocatalytic carbon dioxide reduction reaction catalyst electrode; wherein the halogen doping can promote the formation of specific surface micro-morphology and structure of the catalyst precursor in the catalyst activation process, and regulate and control the catalyst structure, thereby regulating and controlling the catalytic reaction path and changing the catalyst selectivity. The sol-gel method is simple in process, can realize high-selectivity electrocatalytic carbon dioxide reduction to generate methane or ethylene, and has a good application prospect in the field of electrocatalytic carbon dioxide reduction.

Description

technical field [0001] The technical field of the electrocatalytic carbon dioxide reduction catalyst of the present invention, in particular relates to a halogen-doped basic copper chloride catalyst precursor and its preparation method and application. Background technique [0002] Electrocatalytic carbon dioxide reduction is of great research value due to its potential to simultaneously address issues such as clean energy development, greenhouse gas emission reduction, and industrial raw material preparation. Thanks to the rich d-electron structure of copper, copper catalysts can achieve multiple modes and strong adsorption of *CO, the initial product of carbon dioxide reduction, and can realize different CO activation modes and different reaction paths, which lead to copper catalysts being able to achieve Preparation of various reduction products. However, due to the complex reaction pathway of electrocatalytic carbon dioxide reduction and numerous competing products, it ...

Claims

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Application Information

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IPC IPC(8): B01J27/122B01J37/34C25B11/06C25B3/04
CPCB01J27/122B01J37/348B01J35/33
Inventor 彭慧胜张波白海鹏
Owner FUDAN UNIV
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