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Application of a mononuclear nickel complex as a catalyst for electrocatalytic hydrogen production and photocatalytic degradation of organic dyes

A nickel complex, electrocatalysis technology, applied in the direction of organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, organic chemistry, etc., can solve the problem of less research on mononuclear nickel complex photocatalysis, To achieve the effect of simple synthesis method, high synthesis yield and mild reaction conditions

Active Publication Date: 2020-09-01
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with its electrocatalytic hydrogen production research, the photocatalytic research of mononuclear nickel complexes is relatively less, and no one has combined the catalytic hydrogen production and organic dye degradation activities of the complexes to carry out research.

Method used

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  • Application of a mononuclear nickel complex as a catalyst for electrocatalytic hydrogen production and photocatalytic degradation of organic dyes
  • Application of a mononuclear nickel complex as a catalyst for electrocatalytic hydrogen production and photocatalytic degradation of organic dyes
  • Application of a mononuclear nickel complex as a catalyst for electrocatalytic hydrogen production and photocatalytic degradation of organic dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of mononuclear nickel complex containing N-substituted diphosphine ammonia and 1,2-benzenedithiophenate ligand, the chemical formula of the mononuclear nickel complex is (CH 3 O(CH 2 ) 3 N(PPh 2 ) 2 )Ni(bdt), its synthetic reaction is as follows:

[0034]

[0035] The synthetic method of the mononuclear nickel complex containing N-substituted bisphosphine ammonia and 1,2-benzenedithiophenate ligand is as follows:

[0036] In a round bottom flask equipped with a magnetic stirrer bar, 0.0711g H 2 bdt (0.5mmol), 0.2925g (CH 3 O(CH 2 ) 3 N(PPh 2 ) 2 )NiCl 2 (0.5mmol) and 20mL of dichloromethane were mixed and stirred at room temperature for 3 hours to obtain a purple solution. The solvent was removed by a rotary evaporator under reduced pressure, dissolved in an appropriate amount of dichloromethane, and separated by thin-layer chromatography using dichloromethane as a developing solvent. The red band was collected, and 0.2922 g was obtained after eluti...

Embodiment 2

[0038] A kind of mononuclear nickel complex containing N-substituted diphosphine ammonia and 1,2-benzenedithiophenate ligand, the chemical formula of the mononuclear nickel complex is (CH 3 S(CH 2 ) 3 N(PPh 2 ) 2 )Ni(bdt), its chemical structure is as follows:

[0039]

[0040] The synthetic method of the mononuclear nickel complex containing N-substituted bisphosphine ammonia and 1,2-benzenedithiophenate ligand is as follows:

[0041] In a round bottom flask equipped with a magnetic stirrer bar, 0.0711g H 2 bdt (0.5mmol), 0.3005g (CH 3 S(CH 2 ) 3 N(PPh 2 ) 2 )NiCl 2 (0.5mmol) and 20mL of dichloromethane were mixed and stirred at room temperature for 3 hours to obtain a purple solution. The solvent was removed by rotary evaporator under reduced pressure, dissolved with an appropriate amount of dichloromethane, and a 2:1 mixture of dichloromethane and petroleum ether was used as a developing solvent for thin-layer chromatography. The red band was collected and 0.2...

Embodiment 3

[0043] A kind of mononuclear nickel complex containing N-substituted diphosphine ammonia and 1,2-benzenedithiophenate ligand, the chemical formula of the mononuclear nickel complex is (CH 3 CH(Ph)N(PPh 2 ) 2 )Ni(bdt), its chemical structure is as follows:

[0044]

[0045] The synthetic method of the mononuclear nickel complex containing N-substituted bisphosphine ammonia and 1,2-benzenedithiophenate ligand is as follows:

[0046] In a round bottom flask equipped with a magnetic stirrer bar, 0.0711g H 2 bdt (0.5mmol), 0.3090g (CH 3 CH(Ph)N(PPh 2 ) 2 )NiCl 2 (0.5mmol) and 20mL of chloroform were mixed, stirred and reacted at room temperature for 2 hours to obtain a purple solution. The solvent was removed by rotary evaporator under reduced pressure, dissolved with an appropriate amount of chloroform, and a 3:1 mixture of dichloromethane and petroleum ether was used as a developing solvent for thin-layer chromatography. The red band was collected and 0.2606g was obtain...

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Abstract

The invention relates to the fields of hydrogen energy development and environmental protection. Specifically, it is a mononuclear nickel containing N-substituted bisphosphine amine and 1,2-dithiophenate ligand with the properties of electrocatalytic hydrogen production and photocatalytic degradation of organic dyes. Complex, which is composed of R-PNP and 1,2-benzenedithiophenolate (bdt) (or 4-methyl-1,2-benzenedithiophenolate (bdtMe)) ligand and metal nickel atom The chemical structure of a connected mononuclear nickel complex is as follows: The nickel complex exhibits efficient electrocatalytic hydrogen production activity in acidic media and has efficient photocatalytic degradation of organic dyes. The mononuclear nickel complex of the present invention has a simple synthesis method, mild reaction conditions and high yield, and is suitable for a series of N-substituted bisphosphine and substituted-1,2-containing bisphosphine amines with catalytic hydrogen production performance and photocatalytic degradation of organic dye activity. The synthesis of mononuclear nickel complexes with benzenedithiophenolate ligands has potential application value in the fields of hydrogen energy development and environmental protection.

Description

technical field [0001] The invention relates to the field of hydrogen energy development and environmental protection, specifically a kind of N-substituted bisphosphine ammonia (R-PNP) and 1,2-benzenedithiophenate (bdt) (or 4-methyl-1,2 - Benzene dithiophenate (bdtMe)) ligand and a metal nickel atom connected to a mononuclear nickel complex as an electrocatalytic hydrogen production catalyst and photocatalytic degradation of organic dyes. Background technique [0002] With the rapid development of social economy, not only the energy crisis has become increasingly prominent, but also the problem of environmental pollution has become more and more serious. Therefore, it is becoming more and more important to develop a catalyst that has both high-efficiency hydrogen production activity and organic dye degradation activity. [0003] As we all know, most of the natural energy that has been developed on the earth is non-renewable and often polluting. Hydrogen energy has the chara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/04B01J31/22C02F1/32C25B1/02C25B11/06C02F101/30C02F101/34C02F101/38C02F101/36
CPCC25B1/02C25B11/04C02F1/32C07F15/045B01J31/188B01J31/226C02F2101/36C02F2101/40C02F2101/38C02F2101/34C02F2101/308C02F2305/10B01J2531/847B01J35/39B01J35/33
Inventor 谢斌邓成龙李玉龙何娇马枭邹立科张栋梁吴宇冯建申胡殊鹏
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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