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Preparation method of born-nitrogen miscellaneous graphene hydrogel

A graphene hydrogel, boron-nitrogen technology, applied in the field of nanomaterials, can solve problems such as not being unfolded, and achieve the effects of good electrical conductivity, simple synthesis process, and short cycle.

Inactive Publication Date: 2015-09-09
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, so far, the self-assembly research of boron nitrogen heterogeneous graphene hydrogels has not been carried out. Therefore, it is particularly important to develop a boron nitrogen heterogeneous graphene hydrogel with low cost, simple operation and mild conditions. necessary

Method used

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  • Preparation method of born-nitrogen miscellaneous graphene hydrogel

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Embodiment 1

[0020] Preparation of boron-nitrogen homoheterographene hydrogels ：

[0021] 3 mL of graphite oxide (1 mg / mL) and 50 mg of ammonium pentaborate were added to the beaker, and the resulting mixture was sonicated for 0.5 h and then transferred to a reaction kettle at 120 o After reacting for 12 h at C, a boron-nitrogen iso-doped graphene hydrogel was prepared by self-assembly.

Embodiment 2

[0023] Preparation of boron nitrogen homoheterographene hydrogel:

[0024] 3 mL of graphite oxide (3 mg / mL) and 100 mg of ammonium pentaborate were added to the beaker, and the resulting mixture was sonicated for 0.5 h and then transferred to a reaction kettle at 160 o After reacting for 12 h at C, a boron-nitrogen iso-doped graphene hydrogel was prepared by self-assembly.

[0025] figure 1 It is the optical photo of the boron nitrogen heterogeneous graphene hydrogel obtained in the present embodiment, by figure 1 (a) and (b), it can be seen that boron nitrogen iso-heterographene hydrogel has been successfully prepared macroscopically;

[0026] figure 2 It is the scanning electron micrograph of the boron nitrogen heterogeneous graphene hydrogel that the present embodiment obtains, from figure 2 It can be seen that boron nitrogen homogeneous graphene hydrogel with porous structure has been successfully prepared;

[0027] image 3 It is the X-ray photoelectron energy s...

Embodiment 3

[0029] Preparation of boron nitrogen homoheterographene hydrogel:

[0030] 3 mL of graphite oxide (5 mg / mL) and 250 mg of ammonium pentaborate were added to the beaker, and the resulting mixture was sonicated for 0.5 h and then transferred to a reaction kettle at 200 o After reacting for 12 h at C, a boron-nitrogen iso-doped graphene hydrogel was prepared by self-assembly.

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Abstract

The invention relates to a preparation method of born-nitrogen miscellaneous graphene hydrogel, and belongs to the technical field of nano materials. According to the preparation method, firstly, graphite oxide is taken as a carbon source, and ammonium pentaborate is used as a born source and a nitrogen source, so that the born-nitrogen miscellaneous graphene hydrogel is prepared by one step under a gentle hydrothermal condition. The synthesis method of the born-nitrogen miscellaneous graphene hydrogel provided by the invention is simple in synthesis process; the required raw materials are low in cost; the conditions are gentle; the prepared born-nitrogen miscellaneous graphene hydrogel has a rich pore structure, and has good application prospect in the application fields such as a capacitor with double electric layers, a hydrogen storage carrier and a biological sensor.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of boron-nitrogen homoheterographene hydrogel. Background technique [0002] Graphene is a new type of carbon material. Since Novoselov of the University of Manchester used adhesive tape to obtain single-atom thin layers through numerous peelings in 2004, and proved the existence of graphene through experiments, it has aroused the world. There is a storm of research on graphene in various fields. At present, graphene is being widely used in the fields of sensors, electrode materials, and functional polymer-based composite materials due to its excellent properties. In order to expand its application field, the performance of graphene needs to be further modified, and the more effective method is the doping of heteroatoms such as (N, B, etc.). It is reported that graphene has superior physical and chemical properties compared with hete...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 蒋鼎王坤杜晓娇钱静
Owner JIANGSU UNIV
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