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Preparation method and application of three-dimensional nitrogen-phosphorus-sulfur doped honeycomb carbon

A honeycomb, sulfur-doped technology, applied in the manufacture of hybrid/electric double layer capacitors, nanotechnology for materials and surface science, nanotechnology, etc., can solve problems such as high cost, equipment corrosion, and environmental pollution, and achieve Large energy density, reduced waste liquid generation, high specific surface area effect

Active Publication Date: 2022-01-18
CHUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common preparation method of carbon materials is the template coupling strong alkali activation method, which is easy to cause corrosion of equipment, and needs to use strong acid for neutralization in the post-processing process, which not only costs high, but also pollutes the environment.

Method used

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  • Preparation method and application of three-dimensional nitrogen-phosphorus-sulfur doped honeycomb carbon
  • Preparation method and application of three-dimensional nitrogen-phosphorus-sulfur doped honeycomb carbon
  • Preparation method and application of three-dimensional nitrogen-phosphorus-sulfur doped honeycomb carbon

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Embodiment 1

[0034] The present invention proposes that the specific preparation process of the three-dimensional nitrogen, phosphorus and sulfur doped honeycomb carbon constructed by two-dimensional carbon nanosheets is as follows:

[0035] S1: Preparation of nitrogen source and phosphorus source precursors: first heat deionized water to 60°C, add melamine with constant temperature stirring, slowly add phytic acid after dissolving, react for 6 hours, freeze, filter, and dry to obtain nitrogen source and phosphorus source Precursor;

[0036] S2: Pretreatment of reactants: Grinding and uniformly mixing phenanthrene, potassium sulfate, oxalic acid and the product obtained in step S1 according to a certain mass ratio;

[0037] S3: Transfer the reactants obtained in step S2 to a tube furnace, react under the protection of argon, and allow to cool to room temperature, and remove impurities to obtain a three-dimensional nitrogen, phosphorus and sulfur doped honeycomb constructed of two-dimension...

Embodiment 2

[0041] The present invention proposes that the specific preparation process of the three-dimensional nitrogen, phosphorus and sulfur doped honeycomb carbon constructed by two-dimensional carbon nanosheets is as follows:

[0042] S1: Preparation of nitrogen source and phosphorus source precursors: first heat deionized water to 70°C, add melamine with constant temperature stirring, slowly add phytic acid after dissolving, react for 9 hours, freeze, filter, and dry to obtain nitrogen source and phosphorus source Precursor;

[0043] S2: Pretreatment of reactants: Grinding and uniformly mixing phenanthrene, potassium sulfate, activator and the product obtained in step S1 according to a certain mass ratio;

[0044] S3: Transfer the reactants obtained in step S2 to a tube furnace, react under the protection of argon, and allow to cool to room temperature, and remove impurities to obtain a three-dimensional nitrogen, phosphorus and sulfur doped honeycomb constructed of two-dimensional...

Embodiment 3

[0048] The present invention proposes the specific preparation process of the three-dimensional nitrogen, phosphorus and sulfur doped honeycomb carbon constructed of two-dimensional carbon nanosheets as follows:

[0049] S1: Preparation of nitrogen source and phosphorus source precursors: first heat deionized water to 80°C, stir at constant temperature and add melamine, slowly add phytic acid after dissolving, react for 12 hours, freeze, filter, and dry to obtain nitrogen source and phosphorus source Precursor;

[0050] S2: Pretreatment of reactants: Grinding and uniformly mixing phenanthrene, potassium sulfate, activator and the product obtained in step S1 according to a certain mass ratio;

[0051] S3: Transfer the reactants obtained in step S2 to a tube furnace, react under the protection of argon, and allow to cool to room temperature, and remove impurities to obtain a three-dimensional nitrogen, phosphorus and sulfur doped honeycomb constructed of two-dimensional carbon nan...

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Abstract

The invention discloses a preparation method and application of three-dimensional nitrogen-phosphorus-sulfur doped honeycomb carbon. The preparation method comprises the following steps: S1, preparing a nitrogen source precursor and a phosphorus source precursor: firstly reacting melamine with phytic acid according to a certain molar ratio, and obtaining the nitrogen source precursor and the phosphorus source precursor after the reaction is finished; S2, pretreating reactants: grinding phenanthrene, a melamine and phytic acid polymer, potassium sulfate and a potassium oxalate activating agent according to a certain mass ratio, and uniformly mixing; and S3, preparing the three-dimensional nitrogen-phosphorus-sulfur-doped honeycomb carbon constructed by the two-dimensional carbon nanosheets: transferring the reactants obtained in step S2 into a tubular furnace, reacting, and removing impurities to obtain the three-dimensional nitrogen-phosphorus-sulfur-doped honeycomb carbon constructed by the two-dimensional carbon nanosheets. The invention provides a universal path for the preparation of the heteroatom-doped carbon positive electrode material for the zinc ion hybrid capacitor with high area specific capacitance.

Description

technical field [0001] The invention relates to the technical field of carbon material preparation, in particular to a preparation method and application of three-dimensional nitrogen, phosphorus and sulfur doped honeycomb carbon. Background technique [0002] For zinc-ion hybrid capacitors, its performance largely depends on the performance of the positive electrode material. The common preparation method of carbon materials is template-coupled strong alkali activation method, which is easy to cause corrosion of equipment, and needs to use strong acid for neutralization in the post-processing process, which not only costs high, but also pollutes the environment. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a preparation method and application of three-dimensional nitrogen, phosphorus and sulfur doped honeycomb carbon, and adopts a simple green and environmentally friendly process t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/34H01G11/86H01G11/36H01G11/30H01G11/26B82Y30/00B82Y40/00
CPCH01G11/34H01G11/86H01G11/26H01G11/36H01G11/30B82Y30/00B82Y40/00Y02E60/13
Inventor 魏风庄京龙吴豪冉松林
Owner CHUZHOU UNIV
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