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Preparation method and application of antimony-doped copper/cuprous oxide electro-catalytic material

An electrocatalytic material, cuprous oxide technology, applied in electrodes, electrolysis components, electrolysis processes, etc., can solve the problems of cumbersome steps, insufficient research on new high-efficiency copper and its oxide composite materials, long cycle, etc., and achieve rich synthesis and preparation. Technology, the effect of broadening application value

Active Publication Date: 2021-06-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0005] The invention provides an antimony-doped copper / cuprous oxide electrocatalytic material and its synthesis method and application, which solves the current problem of insufficient research on new high-efficiency copper and its oxide composite materials
[0006] The present invention aims at a series of problems such as long period, cumbersome steps and poor catalytic performance of current chemical synthesis methods of copper and its oxide composite nanomaterials, and provides a method for synthesizing antimony-doped copper / cuprous oxide nanoparticle composite materials by one-step reduction method method

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Embodiment 1

[0036] Preparation of antimony-doped copper / cuprous oxide nanoparticle composites

[0037] (1) Dissolve 10 mmol of anhydrous copper chloride powder in 100 mL of dilute hydrochloric acid solution (98 mL of deionized water, 2 mL of hydrochloric acid) to form solution A, and dissolve 2.5 mmol of antimony potassium tartrate powder in 100 mL of deionized water to form solution B.

[0038] (2) Dissolve 0.1 mol of sodium borohydride powder in 60 mL of deionized water at low temperature to form solution C. Pour solution B into solution A quickly, and stir at 0°C for 2 h to form solution D. Continue to keep 0°C constant, under vigorous stirring, solution C was dissolved in 1mLmin -1 Injected into solution C at the rate of 1, aged at this temperature for 9 hours, washed 3 times with absolute ethanol, deionized water, and acetone, and dried in vacuum at 60°C for 8 hours to obtain a typical antimony-doped copper / cuprous oxide Nanoparticle loose packing composites (Cu / Cu 2 O-Sb).

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Abstract

The invention provides a preparation method and application of an antimony-doped copper / cuprous oxide electro-catalytic material. The antimony-doped copper / cuprous oxide composite material is synthesized in one step by adopting a simple and controllable low-temperature co-reduction method, and the expression of the antimony-doped copper / cuprous oxide composite material is Cu / Cu2O-Sb. The invention belongs to the technical field of synthesis of new energy nano materials. Anhydrous copper chloride and antimony potassium tartrate are used as a copper source and an antimony source, sodium borohydride is used as a reducing agent, a one-step reduction process is completed at low temperature by controlling the pH value of a solution, the reduction rate of sodium borohydride and the precursor amount of antimony potassium tartrate, and the antimony-doped copper / cuprous oxide nanoparticle composite material is obtained. The synthesis method disclosed by the invention can solve the problems of multi-step complexity, poor uniformity and the like in the existing synthesis technical process, and enriches the further research and development of the copper-based electro-catalytic material. The material shows excellent electrocatalytic carbon dioxide reduction performance and is suitable for the field of new energy development.

Description

technical field [0001] The invention belongs to the technical field of new energy nanomaterial synthesis and electrochemistry, and in particular relates to an antimony-doped copper / cuprous oxide electrocatalytic material and its synthesis and application. Background technique [0002] The consumption of fossil energy by industrial production and human life has exacerbated the problem of energy shortage, and the accompanying continuous rise in the concentration of carbon dioxide has led to energy and environmental issues becoming two major problems that need to be solved urgently. As a green new energy technology for energy conversion and storage, electrocatalytic reduction of carbon dioxide technology can make full use of sustainable secondary power and effectively convert carbon dioxide into valuable fuels or chemical raw materials, which is of great significance to the sustainable development of the carbon cycle . However, the key challenge hindering the electrocatalytic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/23C25B1/50C25B11/091
CPCC25B1/00
Inventor 鲁效庆陈红宇王兆杰魏淑贤刘思远
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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