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Bimetal composite catalyst, preparation method and application thereof, working electrode and battery system

A composite catalyst, working electrode technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as secondary pollution, achieve no secondary pollution, Simple operation, increased catalytic activity and effect of stability

Active Publication Date: 2021-12-21
TAIZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the catalytic hydrodechlorination products of the above-mentioned catalysts to chlorinated phenol compounds are all phenol, and phenol is also a toxic organic substance, causing secondary pollution

Method used

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  • Bimetal composite catalyst, preparation method and application thereof, working electrode and battery system
  • Bimetal composite catalyst, preparation method and application thereof, working electrode and battery system
  • Bimetal composite catalyst, preparation method and application thereof, working electrode and battery system

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preparation example Construction

[0027] The present invention provides the preparation method of bimetallic composite catalyst described in above-mentioned technical scheme, comprises the following steps:

[0028] Mixing the carbon material, nitric acid solution and hydrochloric acid solution, and performing acid treatment to obtain acid-treated carbon material;

[0029] The first water-soluble metal salt, the second water-soluble metal salt and water are mixed to obtain a mixed bimetallic salt solution; the bimetallic ions in the mixed bimetallic salt solution include palladium ions, platinum ions, silver ions, gold ions, Two of ruthenium ions, iron ions, cobalt ions, nickel ions and copper ions;

[0030] immersing the acid-treated carbon material in the mixed double metal salt solution and drying to obtain a catalyst precursor;

[0031] The catalyst precursor is activated by plasma to obtain a bimetallic composite catalyst.

[0032] In the invention, the carbon material, nitric acid solution and hydrochlo...

Embodiment 1

[0063](1) Mix 1 g of activated carbon, nitric acid solution (1mL, 2mol / L) and hydrochloric acid solution (3mL, 2mol / L), perform acid treatment and filter, and dry the obtained solid component at 80°C for 8h to obtain acid Treatment of activated carbon;

[0064] (2) Stir and mix palladium nitrate (10.85mg), chloroplatinic acid (13.27mg) and 30mL deionized water for 30min to obtain a mixed double metal salt solution;

[0065] (3) immerse 1 g of the acid-treated activated carbon and the mixed bimetallic salt solution obtained in step (2) at room temperature under stirring conditions for 12 hours, then place in a desiccator and dry at 120° C. for 12 hours to obtain a catalyst precursor;

[0066] (4) The catalyst precursor is placed in a plasma reaction furnace, and hydrogen gas is introduced after vacuuming, and the plasma is activated for 0.5h at a temperature of 100°C, an electric power of 250W, and a vacuum of 80Pa to obtain a bimetallic Composite catalyst (abbreviated as PdPt...

Embodiment 2

[0075] (1) Mix 1g of carbon nanotubes, nitric acid solution (1mL, 2mol / L) and hydrochloric acid solution (3mL, 2mol / L), perform acid treatment and filter, and dry the obtained solid component at 80°C for 8h, Obtain acid-treated carbon nanotubes;

[0076] (2) Palladium nitrate dihydrate (10.85 mg), nickel nitrate hexahydrate (246.61 mg) and 30 mL of deionized water were stirred and mixed for 30 min to obtain a mixed double metal salt solution;

[0077] (3) Immerse 1 g of the acid-treated carbon nanotubes and the mixed double metal salt solution obtained in step (2) at room temperature and under stirring conditions for 12 hours, and then place them in a desiccator and dry them at 120° C. for 12 hours to obtain a catalyst precursor body;

[0078] (4) The catalyst precursor is placed in a plasma reaction furnace, and hydrogen gas is introduced after vacuuming, and the plasma is activated for 0.6h at a temperature of 100°C, a voltage of 350W, and a vacuum of 80Pa to obtain a bimet...

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Abstract

The invention provides a bimetallic composite catalyst, a preparation method and application thereof, a working electrode and a battery system, and belongs to the technical field of catalysts. The bimetallic composite catalyst provided by the invention comprises a carbon material carrier and a bimetallic active component loaded on the surface of the carbon material carrier, the bimetallic active component comprises two of palladium, platinum, silver, gold, ruthenium, iron, cobalt, nickel and copper. The bimetallic composite catalyst provided by the invention has the advantages that the adsorption capacity to chlorinated phenol compounds is improved, so that dechlorination and hydrogenation of the chlorinated phenol compounds to form phenol compounds are accelerated, meanwhile, further hydrogenation of the phenol compounds to generate KA oil is promoted, and the selectivity and yield of the KA oil are improved through the synergistic effect of the two metals; and the carbon material is used as the carrier, so that the dispersity and the binding force of the bimetallic active components in the catalyst can be improved, and the catalytic activity and the stability of the bimetallic composite catalyst can be improved.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a bimetallic composite catalyst, a preparation method and application thereof, a working electrode and a battery system. Background technique [0002] As an important industrial raw material, chlorinated phenol compounds are widely used in the fields of medicine and hygiene, paper industry, pesticide production, dyestuff and chemical production. Since chlorinated phenols are a typical class of persistent organic pollutants, they are highly toxic, bioaccumulative, carcinogenic and resistant to natural degradation, and their extensive use has caused serious pollution to the environment. [0003] At present, the treatment methods of chlorinated phenols mainly include adsorption method, extraction method, high-temperature calcination method and catalytic hydrodechlorination. Among them, catalytic hydrodechlorination is a simple, safe and effective method, which has attracted extens...

Claims

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Application Information

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IPC IPC(8): B01J23/44B01J23/89B01J23/755B01J37/02B01J37/18B01J37/34C25B3/07C25B3/25C25B11/091H01M4/90
CPCB01J23/44B01J23/892B01J23/755B01J37/0201B01J37/0215B01J37/18B01J37/349H01M4/9041B01J35/33Y02E60/50
Inventor 陈先朗韩得满李嵘嵘武承林
Owner TAIZHOU UNIV
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