A kind of synthesis method and application of p, s, n co-doped mesoporous carbon material with high s content

A synthesis method and co-doping technology, applied in the preparation/purification of carbon, hybrid capacitor electrodes, electrical components, etc., to achieve high specific capacity, good long-distance cycle ability, and increase the possibility of effect

CN106006599BActive Publication Date: 2018-06-12ZHEJIANG UNIV OF TECH
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-06-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a synthesizing method and application of a high-S-content P-S-N-codoped mesoporous carbon material. The preparation method of the material comprises the following steps that 2-aminothiazol and sodium dihydrogen phosphate are taken as raw materials, ZnCl2 is taken as a solvent and a catalyst, and 2-aminothiazol, sodium dihydrogen phosphate and ZnCl2 are put into a tubular furnace to be subjected to high-temperature carbonization through a one-step method to obtain the high-S-content P-S-N-codoped mesoporous carbon material SNPPC, wherein the specific surface area of the SNPPC-800 reaches up to 1,122.46 m<2> / g, the pore diameter ranges from 20 nm to 50 nm, the sulphur content reaches up to 12.58%, and the SNPPC-800 shows the excellent lithium battery performance, oxygen reduction performance and supercapacitor performance compared with low-S-content SNPC. In addition, the method is easy to operate and high in yield and has wide application prospects.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of inorganic nanometer materials and electrochemistry, and in particular relates to a synthesis method and application of a P, S, N co-doped mesoporous carbon material with high S content. Background technique

[0002] In recent years, porous carbon materials have attracted great interest due to their wide potential applications in catalysis, energy storage, gas separation, etc. It is mainly attributed to their unparalleled properties such as high specific surface area, chemical stability, tunable pore structure, and heteroatom modification. However, pristine porous carbons exhibit weak electrochemical activity due to the lack of active centers anchored on the surface. Due to the steric and electronic tunability of the specific surface area, various modifications to the carbon framework or surface can enhance adsorption, diffusion, and activation. Therefore, doping atoms into the carbon framework will chan...

Examples

Embodiment 1

[0046] The preparation of embodiment 1 mesoporous carbon material SNPPC-800

[0047] Weigh 2-aminothiazole (0.1282g), sodium dihydrogen phosphate (0.1536g), and mix evenly by hand, then put 2-aminothiazole on two layers of ZnCl2 (0.1736g each) in the middle of the material, in a sandwich shape, placed in a quartz boat, placed in a tube furnace, heated at 5°C / min to each temperature section for 2h under N2 (speed 30ml / min) atmosphere, Obtain black powder, wash off residual ZnCl with 35% hydrochloric acid 2 , washed three times with deionized water and ethanol, dried in a vacuum oven at 80°C for 3 h, and finally in a tube furnace for N 2 (speed 30ml / min) atmosphere, 200 ℃ for 2h, obtained high S content P, S, N co-doped mesoporous carbon material SNPPC-800, S content up to 12.58%, specific surface area up to 1122.46m 2 / g.

[0048] The S, N, P co-doped mesoporous carbon material obtained by the present invention is used as an oxygen reduction catalyst for a fuel cell, and its ...

Embodiment 2

[0055] The preparation of embodiment 2 mesoporous carbon material SNPPC-700

[0056] Weigh ZnCl 2 (0.8815g), 2-aminothiazole (0.1282g), ZnCl 2 (0.8815g), the ZnCl 2 2-aminothiazole placed on two layers of ZnCl 2 In the middle of the material, in a sandwich shape, placed in a quartz boat and placed in a tube furnaceN 2 (30ml / min) under the atmosphere, the temperature was raised to 700°C at 5°C / min, and kept for 8h to obtain a black powder, which was washed with 35% hydrochloric acid to remove the residual ZnCl 2 , washed five times with deionized water and ethanol, dried in a vacuum oven at 80°C for 3 h, and finally in a tube furnace with N 2 (30ml / min) atmosphere, keep at 200°C for 2h to obtain the final product S, N, P co-doped mesoporous carbon material SNPPC-700.

[0057] The test conditions for catalytic oxygen reduction reaction performance are the same as those in Example 1.

Embodiment 3

[0058] The preparation of embodiment 3 mesoporous carbon material SNPPC-600

[0059] Weigh ZnCl 2 (0.8815g), 2-aminothiazole (0.1282g), ZnCl 2 (0.8815g), the ZnCl 2 2-aminothiazole placed on two layers of ZnCl 2 In the middle of the material, in a sandwich shape, placed in a quartz boat and placed in a tube furnaceN 2 (30ml / min) under the atmosphere, the temperature was raised to 600°C at 5°C / min, and kept for 8h to obtain a black powder, which was washed with 35% hydrochloric acid to remove the residual ZnCl 2 , washed several times with deionized water and ethanol, dried in a vacuum oven at 80 °C for 3 h, and finally in a tube furnace for N 2 (30ml / min) atmosphere, keep at 200°C for 2h to obtain the final product S, N, P co-doped mesoporous carbon material SNPPC-600.

[0060] The test conditions for catalytic oxygen reduction reaction performance are the same as those in Example 1.