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Bimetal co-doped composite material for improving catalytic activity of fully-electrolyzed water

A technology of composite materials and catalytic activity, applied in the direction of electrolysis process, electrolysis components, electrodes, etc., can solve the problems of poor activity and stability, and achieve the effect of simple synthesis route and suitable for large-scale production

Active Publication Date: 2018-09-07
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In general, single cobalt metal has poor activity and stability for HER

Method used

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  • Bimetal co-doped composite material for improving catalytic activity of fully-electrolyzed water
  • Bimetal co-doped composite material for improving catalytic activity of fully-electrolyzed water
  • Bimetal co-doped composite material for improving catalytic activity of fully-electrolyzed water

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Embodiment 1

[0028] Cut 1 piece (2×5cm 2 ) foam copper, ultrasonically washed with hydrochloric acid (1M), water, and ethanol for 15 minutes respectively. Then take by weighing 8 grams of sodium hydroxide and 2.282 grams of ammonium persulfate and pour it into 80 milliliters of water to form a uniform solution, react with the foamed copper after washing for 20 minutes, and the solution turns blue from colorless. Dissolve citric acid (2mmol), ammonium metavanadate (2mmol) and cobalt acetate (1mmol) in 60ml of water. After dissolving evenly, add the prepared copper hydroxide nanowires and react in a hydrothermal kettle at 180°C for 2h . After the reaction, blow dry and weigh, and react to get Cu(OH) 2 @CoV / CF.

[0029] Analysis and characterization

[0030] The morphology and structure of the samples were observed by using Hitachi S-4800 scanning electron microscope (SEM) and JEM-2100UHR transmission electron microscope (TEM) and EDS mapping.

[0031] Results and Analysis:

[0032] fi...

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Abstract

The invention relates to a bimetal co-doped composite material for improving catalytic activity of fully-electrolyzed water. A composite material (Cu(OH)2@CoV / CF) of bimetal coated Cu(OH)2 nanowires is formed by adding cobalt salts and vanadium salts; cobalt-vanadium bimetal is coated in a certain proportion to show excellent catalytic performance and stability. The bimetal co-doped composite material disclosed by the invention has the beneficial effects that the bimetal doped material (Cu(OH)2@CoV / CF) is prepared by adopting a two-step method; in addition, the composite material shows excellent catalytic performance and stability when being applied to an anode and a cathode of electrolytic water. Compared with single metal, bimetal has the advantage of great difference in morphology and performance; the experimental result shows that the cobalt-vanadium bimetal is combined and coated according to a certain proportion; the synergistic effect of the bimetal promotes the improvement of catalytic performance, so that the water is fully electrolyzed more easily.

Description

technical field [0001] The invention relates to the preparation of composite materials, in particular to a composite material used for electrolyzing water anodes and cathodes and its application to total water splitting tests. Background technique [0002] In recent years, with the rapid development of the world economy, the reserves of traditional fossil energy are decreasing day by day, while the demand for energy is increasing year by year, and the energy crisis is deepening day by day. Although the energy conversion of traditional fossil energy has brought great convenience to modern life and promoted the great development of modern industry. But at the same time, due to the conversion of traditional fossil energy into electricity, heat and other energy, a large amount of CO is produced. 2 , SO 2 The air, water, soil and other environmental pollution problems caused by pollutants such as air pollution are also becoming more and more serious. In order to solve the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/06
CPCC25B1/04C25B11/057C25B11/091Y02E60/36
Inventor 李忠涛杨俊魏良勤杨甜甜赵伟楠吴明铂
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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