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Preparation method and application of porous carbon-based nanomaterials based on co(ii)-polyphenylurea coordination polymer

A technology of coordination polymers and nanomaterials, applied in the field of preparation of porous carbon-based nanomaterials, can solve the problems of little development, weak conductivity, poor electrocatalytic activity for oxygen evolution, etc., and achieve good stability and regular shape , cheap effect

Inactive Publication Date: 2019-12-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Organic polymers with a porous and high specific surface area structure are beneficial to the mass transfer and molecular diffusion of the electrolyte and the generated gas. However, their weak electrical conductivity leads to poor electrocatalytic activity for oxygen evolution. At present, organic-based There are very few researches and developments on polymer electrocatalytic oxygen evolution

Method used

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  • Preparation method and application of porous carbon-based nanomaterials based on co(ii)-polyphenylurea coordination polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 A method for preparing porous carbon-based nanomaterials based on Co(II)-polyphenylurea coordination polymers

[0030] (1) Dissolve 0.60g of cobalt nitrate in 4mL of ethanol, add 0.20g of polyphenylurea powder PU, stir evenly, then immerse overnight at 120 W for 12 minutes, and dry at 60°C to prepare porous Co(II)- Polyphenylurea coordination polymer material, the yield is 68%;

[0031] (2) Put the Co(II)-polyphenylurea coordination polymer material in a tube furnace under an air atmosphere at a heating rate of 3°C / min, heat it to 300°C, keep it warm for 1.5h, and then heat it at 2°C / min cooling rate to cool down to room temperature, the preparation of porous carbon-based nanomaterials based on Co(Ⅱ)-polyphenylurea coordination polymer.

Embodiment 2

[0032] Example 2 A method for preparing porous carbon-based nanomaterials based on Co(II)-polyphenylurea coordination polymers

[0033] (1) Dissolve 0.90 g of cobalt nitrate in 6 mL of ethanol, add 0.30 g of polyphenylurea powder PU, stir evenly, and ultrasonicate at 120 W for 15 min, impregnate overnight, and dry at 60 °C to prepare porous Co(II )-polyphenylurea coordination polymer material, the productive rate is 80%;

[0034](2) Put the Co(II)-polyphenylurea coordination polymer material in a tube furnace under an air atmosphere at a heating rate of 5°C / min, heat it to 400°C, keep it for 2 hours, and then heat it up at 2°C / min The cooling rate of min is to cool down to room temperature, and the porous carbon-based nanomaterials based on Co(Ⅱ)-polyphenylurea coordination polymers are prepared.

Embodiment 3

[0035] Example 3 A method for preparing porous carbon-based nanomaterials based on Co(II)-polyphenylurea coordination polymers

[0036] (1) Dissolve 1.20 g of cobalt nitrate in 8 mL of ethanol, add 0.40 g of polyphenylurea powder PU, stir evenly, and then ultrasonicate at 120 W for 15 min, impregnate overnight, and dry at 60 °C to prepare porous Co(II )-polyphenylurea coordination polymer material, the productive rate is 72%;

[0037] (2) Put the Co(Ⅱ)-polyphenylurea coordination polymer material in a tube furnace under an air atmosphere at a heating rate of 4°C / min, heat it to 500°C, keep it for 2.5 h, and then heat it at 2°C / min Cooling rate to cool to room temperature, prepared porous carbon-based nanomaterials based on Co(Ⅱ)-polyphenylurea coordination polymer.

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Abstract

The invention discloses a preparation method and application of porous carbon-based nanomaterials based on Co(Ⅱ)-polyphenylurea coordination polymer, and belongs to the technical fields of nanomaterials, high molecular polymers and catalysts. Porous carbon-based nanomaterials based on Co(Ⅱ)-polyphenylurea coordination polymer (Co 3 O 4 NPs@C) catalyst. The raw materials used in the preparation of the catalyst are low in cost, the preparation process is simple, the reaction energy consumption is low, and it has industrial application prospects. The catalyst is used to catalyze oxygen evolution and has good catalytic activity and chemical stability.

Description

technical field [0001] The invention relates to a preparation method and application of a porous carbon-based nanomaterial based on a Co(II)-polyphenylurea coordination polymer, and belongs to the technical field of nanomaterials, high molecular polymers and electrochemical oxygen evolution. Background technique [0002] With the rapid development of modern society, the energy consumption caused by the huge demand for energy has become an urgent problem to be solved in today's human society. As we all know, traditional fossil fuels such as coal, oil, and natural gas are non-renewable and have limited stocks on the earth. This energy not only cannot meet the needs of sustainable development of human beings, but also emits COx, SOx, NOx and other environmentally unfriendly gases, the resulting air pollution, greenhouse and acid rain effects have seriously affected the living environment of human beings and earth creatures. For this reason, it is urgent to research and develop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/75B01J37/02B01J37/08C25B1/02C25B11/03C25B11/06
CPCC25B1/02C25B11/04B01J23/75B01J37/0203B01J37/084C25B11/031B01J35/33
Inventor 李树生
Owner UNIV OF JINAN