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Nitrogen sulfur doped carbon nanosphere synthesized by solid-phase microwave method, preparation method and application thereof

A technology of carbon nanospheres and nitrogen doping, which is applied in the direction of nanotechnology, nanocarbon, and nanotechnology for materials and surface science, and can solve the problems of complicated experimental operation steps, expensive instruments and equipment, high energy consumption, etc., and achieve Good cycle stability, high specific capacity, and easy operation

Inactive Publication Date: 2018-09-21
MINNAN NORMAL UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

So far, there are many reports on single nitrogen-doped carbon nanospheres, but there are few reports on double-doped carbon nanospheres such as nitrogen-sulfur co-doped carbon nanospheres, and most of them use arc discharge method, laser sintering method, chemical vapor deposition method or Vacuum heat treatment method, these preparation methods require high energy consumption, expensive instruments and equipment, long reaction time and complicated experimental operation steps, etc., which limit the promotion of its materials in actual development and application

Method used

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  • Nitrogen sulfur doped carbon nanosphere synthesized by solid-phase microwave method, preparation method and application thereof
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  • Nitrogen sulfur doped carbon nanosphere synthesized by solid-phase microwave method, preparation method and application thereof

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preparation example Construction

[0032] The method for preparing nitrogen-sulfur-doped carbon nanospheres synthesized by solid-phase microwave method comprises the following steps:

[0033] (1) Mix carbon source, nitrogen source, sulfur source, and sodium α-alkenyl sulfonate in a molar ratio, and grind on an agate mortar for 10-20 minutes to obtain a mixture;

[0034] (2) Grinding graphene on an agate mortar for 10-20min to obtain powder, the obtained powder has a magnetic field strength of 6300-6800GS, an ultrasonic power of 500-600W, a temperature of 50-55°C, and a rotation speed of 200-300r / min, stirring for 30-40min to obtain graphene energy powder;

[0035] (3) Mix the mixture prepared in step (1), the graphene energy powder prepared in step (2), alkane coupling agent KH-57, and ethylene-acrylic acid copolymer in molar ratios, and grind them for 15 minutes in an agate mortar. -25min, to prepare the mixed powder, put the obtained mixed powder into a special glass beaker for microwave oven, then put the ...

Embodiment 1

[0040] A solid-phase microwave synthesis of carbon nanospheres doped with nitrogen and sulfur, in molar parts, including the following raw materials: 1 part of carbon source, 2.5 parts of nitrogen source, 2.3 parts of sulfur source, 0.09 part of graphene energy powder, silane di 0.03 parts of joint agent KH-57, 0.04 parts of sodium α-olefin sulfonate, and 0.2 parts of ethylene-acrylic acid copolymer.

[0041] The carbon source is glucose.

[0042] The nitrogen source is urea.

[0043] The sulfur source is thiourea.

[0044] The method for preparing nitrogen-sulfur-doped carbon nanospheres synthesized by solid-phase microwave method comprises the following steps:

[0045] (1) Mix carbon source, nitrogen source, sulfur source, and sodium α-alkenyl sulfonate in a molar ratio, and grind for 10 minutes on an agate mortar to obtain a mixture;

[0046] (2) Grinding graphene on the agate mortar for 10min to obtain powder, the obtained powder is 6500GS in magnetic field strength, 560W...

Embodiment 2

[0050] A solid-phase microwave synthesis of carbon nanospheres doped with nitrogen and sulfur, in molar parts, including the following raw materials: 1 part of carbon source, 3 parts of nitrogen source, 1.2 parts of sulfur source, 0.06 part of graphene energy powder, silane di 0.02 parts of joint agent KH-57, 0.05 parts of sodium α-olefin sulfonate, and 0.1 parts of ethylene-acrylic acid copolymer.

[0051] The carbon source is glucose.

[0052] The nitrogen source is urea.

[0053] The sulfur source is thiourea.

[0054] The method for preparing nitrogen-sulfur-doped carbon nanospheres synthesized by solid-phase microwave method comprises the following steps:

[0055] (1) Mix the carbon source, nitrogen source, sulfur source, and sodium α-alkenyl sulfonate in a molar ratio, and grind for 20 minutes on an agate mortar to obtain a mixture;

[0056] (2) Grinding on the agate mortar for 12min to make powder, the obtained powder is 6300GS in magnetic field strength, 500W in ult...

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Abstract

The invention discloses a nitrogen sulfur doped carbon nanosphere synthesized by solid-phase microwave method, a preparation method and application thereof. The carbon nanosphere comprises the following raw materials: a carbon source, a nitrogen source, a sulfur source, graphene energy powder, a silane coupling agent KH-57, alpha-sodium allylsulfonate and an ethylene-acrylic acid copolymer. The carbon nanosphere is prepared by steps: mixing, grinding, carrying out a microwave reaction and the like. The nitrogen sulfur doped carbon nanosphere disclosed by the invention has the characteristics of being simple and readily available in raw materials, simple in process, convenient to operate, green, environmentally friendly and capable of realizing high-efficiency and simple batch production. The carbon sphere prepared by the invention has a diameter of 30-60nm, and the nanosphere is expected to achieve huge application prospects in the fields of hydrogen storage, supercapacitors, photocatalysis and the like.

Description

【Technical field】 [0001] The invention relates to a new method for preparing nitrogen-sulfur co-doped carbon nanospheres, in particular to the preparation of nitrogen-sulfur double-doped carbon nanospheres by solid-phase grinding and microwave carbonization techniques. 【Background technique】 [0002] Carbon nanospheres have the advantages of low density, stable chemical properties, good electrical conductivity, large specific surface area, and strong biocompatibility. They have potential applications in the fields of electrode materials, catalysts, catalyst supports, composite material reinforcements, and drug packaging. prospect. Due to the structural defects of carbon materials, the improvement of their comprehensive performance is greatly affected, which limits their further applications. The properties of carbon materials are closely related to their crystallinity, microstructure, and surface properties. Doping can effectively reduce the defects of carbon materials them...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15B82Y30/00B82Y40/00C01B3/00H01G11/24H01G11/30H01G11/36H01G11/42H01G11/38H01G11/86B01J27/24B01J35/00B01J35/02B01J35/08
CPCH01G11/24H01G11/30H01G11/36H01G11/38H01G11/42H01G11/86B82Y30/00B82Y40/00C01B3/0078C01B32/15B01J27/24C01P2006/12C01P2004/64C01P2004/80C01P2004/32B01J35/51B01J35/40B01J35/39Y02E60/13Y02E60/32
Inventor 郭鸿旭何娜婷牛百通吴屹伟朱梅花张燕辉郑子山
Owner MINNAN NORMAL UNIV
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