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Preparation method of nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material

A technology of co-doping and mesoporous carbon, which is applied in the manufacture of hybrid/electric double layer capacitors and electrodes of hybrid capacitors, etc., can solve the problem of limited improvement in the capacitance performance of mesoporous carbon materials, and achieve the effect of improving capacitance performance

Inactive Publication Date: 2018-07-17
QIQIHAR UNIVERSITY
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Problems solved by technology

So as to solve the problem that single heteroatom doping has limited improvement in the capacitance performance of mesoporous carbon materials

Method used

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  • Preparation method of nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material
  • Preparation method of nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material
  • Preparation method of nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material

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specific Embodiment approach 1

[0025] Specific Embodiment 1: In this embodiment, the preparation method of nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon materials is implemented according to the following steps:

[0026] 1. Synthesis of ordered mesoporous silica template (KIT-6) by hydrothermal synthesis method;

[0027] 2. (1) Dry KIT-6 is ultrasonically treated in deionized water to obtain a uniform dispersion; at the same time, add sucrose, phosphoric acid and thiosemicarbazide to deionized water and stir to obtain a uniform solution, and the mass ratio, m(KIT -6): m (sucrose): m (phosphoric acid): m (thiosemicarbazide) = 8: 8: (2~1): (2~1). (2) Transfer the latter to the former and continue stirring for 12 h at 40 °C in a fume hood. (3) Place the obtained paste compound in an oven to dry at 80°C for 12 hours, and then grind the dried solid into powder. (4) Pyrolyze the composite powder in a tube furnace at 800 °C for 2 h under high-purity nitrogen (50 ml / s), with a heatin...

specific Embodiment approach 2

[0029] Embodiment 2: This embodiment differs from Embodiment 1 to Embodiment 4 in that the pyrolysis temperature in Step 2 is 700° C., and other steps and parameters are the same as Embodiment 1 to Embodiment 4.

specific Embodiment approach 3

[0030] Embodiment 3: This embodiment differs from Embodiment 1 to Embodiment 1 in that the pyrolysis temperature in Step 2 is 900° C., and other steps and parameters are the same as Embodiment 1 to Embodiment 5.

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Abstract

The invention relates to a preparation method of a nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material and aims to solve the problem of limitation of existing single heteroatom doping on improvement of capacity of the mesoporous carbon material. The preparation method comprises the steps of preparing an ordered mesoporous silicon dioxide template (KIT-6); stirringand aging a sucrose, phosphoric acid and thiosemicarbazide mixed solution and a KIT-6 dispersion liquid for 10-14 hours under 40-60 DEG C; placing the obtained paste compound in a drying oven for drying for 10-14 hours under 70-90 DEG C; placing the product in a tubular furnace for pyrolysis for 1-3 hours under high-pure nitrogen (the nitrogen flowing rate is 50mL / s) at 700-900 DEG C, wherein theheating rate is 2 DEG C per minute; and immersing the carbonized composite material in an HF solution, performing stirring to remove the silicon dioxide template, performing filtering, washing with ultrapure water and ethyl alcohol, and obtaining the nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material (NPS-OMC) after drying. The nitrogen, phosphorus, and sulfur ternary co-doped ordered mesoporous carbon material is prepared by the template and by nanometer pouring, and the specific capacity of the material electrode can reach 343F / g.

Description

technical field [0001] The invention relates to a preparation method of nitrogen, phosphorus and sulfur ternary co-doped ordered mesoporous carbon materials. Background technique [0002] With the rapid development of the global economy, environmental problems and energy crises have become increasingly serious threats to human survival and social progress. Therefore, environmental pollution and energy supply have become the two most urgent problems in the world today. The two fields of environmental pollution and energy supply are closely related, and it is a brand-new solution to develop renewable new energy sources to replace fossil fuels through sustainable and environmentally friendly technologies. [0003] In order to obtain safe and renewable new energy sources and reduce greenhouse gas emissions, scientists have developed new materials and methods for energy storage. Supercapacitors, as well as advanced battery systems, have been considered as very promising energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/38
CPCH01G11/24H01G11/30H01G11/38H01G11/86Y02E60/13
Inventor 宋伟明徐立洋程晓宇邓启刚
Owner QIQIHAR UNIVERSITY
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