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A porous carbon material loaded feco 2 the s 4 Electrochemical oxygen evolution catalyst and preparation method thereof

A porous carbon material, electrochemical technology, applied in the field of electrocatalytic oxygen evolution

Active Publication Date: 2021-12-14
ZHEJIANG ZHIYUAN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a porous carbon material loaded FeCo 2 S 4 The electrochemical oxygen evolution catalyst and its preparation method solve the problems that the transition metal sulfide oxygen evolution catalyst has poor conductivity and low oxygen evolution efficiency, and at the same time solve the problem of poor chemical stability of the transition metal sulfide catalyst. The problem of easy loss or even decomposition in the electrolyte

Method used

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  • A porous carbon material loaded feco <sub>2</sub> the s <sub>4</sub> Electrochemical oxygen evolution catalyst and preparation method thereof
  • A porous carbon material loaded feco <sub>2</sub> the s <sub>4</sub> Electrochemical oxygen evolution catalyst and preparation method thereof
  • A porous carbon material loaded feco <sub>2</sub> the s <sub>4</sub> Electrochemical oxygen evolution catalyst and preparation method thereof

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preparation example Construction

[0026] The organic ligand is a naphthalimide m-dibenzoic acid derivative, and the preparation method comprises the following steps:

[0027] (1) Feed N into the reaction flask 2 Exhaust the air, add N,N-dimethylformamide (DMF) solvent, 1,4,5,8-naphthalene tetracarboxylic anhydride, 5-aminoisophthalic acid, stir well and then add activator triethylamine (TEA ), dehydrating agent 2-(7-azobenzotriazole)-N,N,N',N'-tetramethyluronium hexafluorophosphate (HATU), additive K 2 CO 3, the molar ratio of the five substances is 1:2.4-3:2-3:2-2.4:4-5, the reaction bottle is placed in the oil bath, the oil bath includes a base, and the top of the base is fixedly connected with an installation The top of the installation table is inlaid with a bath pot, the bottom of the bath pot is fixedly connected with a heating pipe, the bottom of the installation table and on the right side of the bath pot is fixedly connected with a vertical rod, and the outer side of the vertical rod is sleeved with...

Embodiment 1

[0035] (1) Preparation of organic ligand naphthalimide m-dibenzoic acid derivative 1: feed N into the reaction flask 2 Exhaust air, add N,N-dimethylformamide (DMF) solvent, 1,4,5,8-naphthalene tetracarboxylic anhydride, 5-aminoisophthalic acid, stir well and then add activator triethylamine (TEA ), dehydrating agent 2-(7-azobenzotriazole)-N,N,N',N'-tetramethyluronium hexafluorophosphate (HATU), additive K 2 CO 3 , the molar ratio of the five substances is 1:2.4:2:2:4, the reaction bottle is placed in the oil bath, the oil bath includes a base, the top of the base is fixedly connected with a mounting table, and the top of the mounting table is inlaid with Bathing pot, the bottom of the bathing pot is fixedly connected with a heating pipe, and the bottom of the installation platform is fixedly connected with a vertical rod on the right side of the heating pot. Rod, the left side of the horizontal rod is fixedly connected with a placement frame, the front and back of the slidin...

Embodiment 2

[0039] (1) Preparation of organic ligand naphthalimide m-dibenzoic acid derivative 2: feed N into the reaction flask 2 Exhaust air, add N,N-dimethylformamide (DMF) solvent, 1,4,5,8-naphthalene tetracarboxylic anhydride, 5-aminoisophthalic acid, stir well and then add activator triethylamine (TEA ), dehydrating agent 2-(7-azobenzotriazole)-N,N,N',N'-tetramethyluronium hexafluorophosphate (HATU), additive K 2 CO 3 , the molar ratio of the five substances is 1:2.4:3:2:4, the reaction bottle is placed in the oil bath, the oil bath includes a base, the top of the base is fixedly connected with an installation platform, and the top of the installation platform is inlaid with Bathing pot, the bottom of the bathing pot is fixedly connected with a heating pipe, and the bottom of the installation platform is fixedly connected with a vertical rod on the right side of the heating pot. Rod, the left side of the horizontal rod is fixedly connected with a placement frame, the front and bac...

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Abstract

The invention relates to the technical field of electrocatalytic oxygen evolution, and discloses a porous carbon material loaded FeCo 2 S 4 The electrochemical oxygen evolution catalyst, including the following formula raw materials: (CH 3 COO) 2 Co, (CH 3 COO) 2 Fe, organic ligands, thiourea. The porous carbon material loaded with FeCo 2 S 4 The electrochemical oxygen evolution catalyst, CoFe bimetallic MOFs as a template, react with thiourea as a precursor, and thermally crack to form porous carbon-coated nano-FeCo 2 S 4 core-shell structure, FeCo 2 S 4 It has low overpotential and high half-wave potential in alkaline electrolyte, showing good oxygen evolution activity, the specific surface area of ​​shell-core structure is huge, and there are many active sites, and N doping makes carbon materials show good Conductivity reduces the electron transfer resistance of the catalyst material, and O doping increases the layer spacing in the carbon material, making the carbon material form a rich mesopore and pore structure, generating a large number of catalytic active centers, and at the same time promoting electron transfer in the catalyst layer. Fast and continuous transmission in .

Description

technical field [0001] The invention relates to the technical field of electrocatalytic oxygen analysis, in particular to a porous carbon material loaded with FeCo 2 S 4 Electrochemical oxygen evolution catalyst and its preparation method. Background technique [0002] At present, human life and production activities are inseparable from the use of fossil energy. However, with the excessive use of non-renewable fossil energy, the problem of energy depletion and environmental pollution has become increasingly serious. Seeking new sustainable and clean energy has become an important task. Research hotspot, hydrogen energy is a resource-rich secondary energy source, which has the advantages of excellent combustion performance, high energy, green pollution-free and sustainable development, and has rich applications in hydrogen-powered vehicles, hydrogen power generation, fuel cells and other fields At present, the production of hydrogen energy mainly includes hydrogen producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/043B01J27/24B01J35/00B01J37/08C07D471/06C25B1/04C25B11/03C25B11/091
CPCB01J27/043B01J27/24B01J37/086B01J37/084B01J35/0033C07D471/06C25B1/04C25B11/091Y02E60/36
Inventor 倪澜
Owner ZHEJIANG ZHIYUAN ENVIRONMENTAL TECH CO LTD
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