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A kind of copper complex with electrocatalytic activity to hydrogen peroxide and preparation method thereof

A technology of copper complexes and compounds, applied in the field of copper complexes and their preparation, can solve the problems of poor stability of semiconductor oxides, many by-products, complex catalyst preparation process, etc., and achieve good electrocatalytic activity

Active Publication Date: 2015-11-18
菏泽建数智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Semiconductor oxides have relatively poor stability and low catalytic activity, and are still in the research and development stage; phthalocyanine and porphyrin macrocyclic conjugated complexes have good electrocatalytic activity due to their special macrocyclic conjugated structures. And it can be structurally adjustable by changing the substituent on its conjugated ring and the central metal atom and molecular aggregation mode, which endows it with a broad space for the development of electrocatalyst performance, and is one of the promising substitutes for platinum-based catalysts. One, but the preparation process of the catalyst is too complicated and there are many by-products

Method used

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  • A kind of copper complex with electrocatalytic activity to hydrogen peroxide and preparation method thereof
  • A kind of copper complex with electrocatalytic activity to hydrogen peroxide and preparation method thereof
  • A kind of copper complex with electrocatalytic activity to hydrogen peroxide and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] Weigh CuSO 4 ·5H 2 O (2.497g, 10mmol), H 4 Add L (0.269g, 1.0mmol) and 1,10-phenanthroline (0.180g, 1.0mmol) to 5.0mL distilled water, stir to dissolve; seal the reaction device and heat at 60°C for 60min, then take it out and cool to Room temperature; then use dilute KOH solution to adjust the mixed solution to be weakly acidic (pH=5); let it stand at room temperature, and slowly evaporate the solvent until crystals are precipitated. The solution was removed, and the massive crystals obtained by natural air drying were copper complexes.

[0021] Wherein, the ligand 5-(bis(carboxymethyl)amino)-2-hydroxybenzoic acid (H 4 L) Preparation method: KOH solution (12M, 20mL) was added dropwise into sodium chloroacetate (13.978g, 0.12mol) aqueous solution (20mL) and stirred, then 5-aminosalicylic acid (4.59g, 0.03mmol) Slowly added to the above mixture, reacted at 85°C for 30h. After the reaction, cool to room temperature, acidify with HCl solution (6mol / L) until precipitat...

Embodiment 2

[0023] Weigh CuCl 2 2H 2 O (0.170g, 1.0mmol), H 4 Add L (2.692g, 10mmol) and 1,10-phenanthroline (1.802g, 10mmol) to 40mL of distilled water, stir to dissolve; seal the reaction device and heat at 90°C for 15min, then take it out and cool to room temperature; Use dilute KOH solution to adjust the mixed solution to be weakly acidic (pH=7); let it stand at room temperature, and slowly evaporate the solvent until crystals are precipitated. The solution was removed, and the massive crystals obtained by natural air drying were copper complexes.

Embodiment 3

[0025] Weigh Cu(NO 3 ) 2 ·3H 2 O (0.483g, 2.0mmol), H 4 Add L (2.692g, 10mmol) and 1,10-phenanthroline (1.802g, 10mmol) to 15mL of distilled water, stir to dissolve; seal the reaction device and heat at 80°C for 30min, then take it out and cool to room temperature; Use dilute KOH solution to adjust the mixed solution to be weakly acidic (pH=6); let it stand at room temperature, and slowly evaporate the solvent until crystals are precipitated. The solution was removed, and the massive crystals obtained by natural air drying were copper complexes.

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Abstract

The invention discloses a copper complex and a preparation method thereof, and the copper complex is characterized by having good electrocatalytic activity on hydrogen peroxide, the molecular formula of the copper complex is C46H34N6O14Cu2, the crystal system is clinorhomboidal, the space group is P-1, the cell parameters are as follows: alpha is equal to 99.90 degrees, beta is equal to 101.2 degrees and gamma is equal to 93.69 degrees. The copper complex is prepared from a mixing reaction of a copper salt, 5-(di(carboxymethyl) amino)-2-hydroxybenzoic acid and 1,10-phenanthroline according to a certain proportion, the copper complex has a specific spatial structure and an accurate molecular formula, the synthesis steps are simple, and the yield can reach 30-70%. The copper complex prepared in the invention has good electrocatalytic activity, thereby having a broad application prospect of being used as a potential electrocatalytic active material.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a copper complex having electrocatalytic activity for hydrogen peroxide and a preparation method thereof. Background technique [0002] Electrocatalysis is a kind of catalysis that accelerates the reaction by charge transfer at the electrode-electrolyte interface. Electrocatalysis covers two aspects of electrode reaction and catalysis, so electrocatalysts must have these two functions at the same time: (1) be able to conduct electricity and transfer electrons relatively freely; (2) be able to effectively catalytically activate the substrate . Mainly used in electrocatalytic treatment of fuel cells and organic sewage; electrocatalytic degradation of chromium-containing wastewater; electrolytic desulfurization of flue gas and raw coal; simultaneous removal of NO by electrocatalysis x and SO 2 ; Electrolytic reduction of carbon dioxide; Electrolytic reduction of formaldehyde, hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F1/08
Inventor 李星赵亚云赵秀华张洁康晶燕
Owner 菏泽建数智能科技有限公司
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