Method for synthesizing an S and N synergistic mesoporous carbon material with excellent ORR and lithium-ion electric performance through one-step method

A synergistic, mesoporous carbon technology, applied in nanotechnology, circuits, electrical components, etc. for materials and surface science, can solve problems such as high cost, low yield, and difficulty in industrialization, and achieve high lithium battery performance, The effect of high yield, huge economic benefit and social benefit

Active Publication Date: 2015-12-30
嘉善县国创新能源研究院
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The traditional synthesis is based on carbon materials and precursors containing S and N such as organic molecules and ionic liquids, but the yield is low, the cost is high, and industrialization is difficult. A new method is used to obtain cost reduction and yield Higher porous carbon solves the above problems, which will be of great significance for solving my country's energy crisis and sustainable development of the country

Method used

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  • Method for synthesizing an S and N synergistic mesoporous carbon material with excellent ORR and lithium-ion electric performance through one-step method
  • Method for synthesizing an S and N synergistic mesoporous carbon material with excellent ORR and lithium-ion electric performance through one-step method
  • Method for synthesizing an S and N synergistic mesoporous carbon material with excellent ORR and lithium-ion electric performance through one-step method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The preparation of embodiment 1 mesoporous carbon material SNPC-800

[0069] Weigh ZnCl 2 (0.8815g), 2-aminothiazole (0.1282g), ZnCl 2 (0.8815g), 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, placed in a tube furnace, N 2 (The speed is 30ml / min) under the atmosphere, the temperature is raised to 800°C at 5°C / min, and kept for 8h, a black powder is obtained, and the residual ZnCl is washed 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 ° C for 2 hours, to obtain the final product S, N co-doped mesoporous carbon material SNPC-800.

[0070] Mix the prepared S, N co-doped mesoporous carbon material SNPC-800, ethanol and nafion at a ratio of 2mg: 1.8mL: 200μL, ultrasonically disperse evenly, drop it on the electrode, and then Dry and make a...

Embodiment 2

[0072] Preparation of Example 2 mesoporous carbon material SNPC-700

[0073] Weigh ZnCl 2 (0.8815g), 2-aminothiazole (0.1282g), ZnCl 2 (0.8815g), 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 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, 200°C for 2h, the final product S, N co-doped mesoporous carbon material SNPC-700 was obtained.

[0074] The test conditions for catalytic oxygen reduction reaction performance are the same as those in Example 1.

Embodiment 3

[0075] Example 3 Preparation of Mesoporous Carbon Material SNPC-600

[0076] Weigh ZnCl 2 (0.8815g), 2-aminothiazole (0.1282g), ZnCl 2 (0.8815g), 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 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, 200°C for 2h, the final product S, N co-doped mesoporous carbon material SNPC-600 was obtained.

[0077] The test conditions for catalytic oxygen reduction reaction performance are the same as those in Example 1.

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Abstract

The invention relates to a method for synthesizing an S and N synergistic mesoporous carbon material with excellent ORR and lithium-ion electric performance through a one-step method. The preparation method includes the following steps that 2-aminothiazole is used as the raw material, ZnCl2 is used as the solvent and catalyst, and the 2-aminothiazole and the ZnCl2 are placed into a tube furnace, so that the high-yield S and N co-doped mesoporous carbon material is obtained at different temperatures through the one-step method (SNPC-500, SNPC-600, SNPC-700 and SNPC-800 are obtained at the temperatures of 500 DEG C, 600 DEG C, 700 DEG C and 800 DEG C respectively). The specific surface area of the SNPC-800 reaches up to 1235 m<2>/g, the pore diameter ranges from 10 nm to 45 nm, and the S and N synergistic mesoporous carbon material has the ORR performance which compares favorably with the performance of Pt/C, high lithium-ion electric reversible capacity, excellent recycling stability and rate capability. The method is easy to operate, low in production cost, high in yield, wide in industrial prospect, and capable of bringing huge economic benefits and social benefits if being industrialized.

Description

technical field [0001] The invention belongs to the field of inorganic nanometer materials and electrochemistry, and specifically relates to a one-step method for synthesizing a mesoporous carbon material with S and N synergistic effects with excellent ORR and lithium battery performance. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy isothermally, efficiently, and environmentally friendly. Due to its high energy conversion efficiency, low pollution, low noise, high continuity and reliability, it has been regarded as the most environmentally friendly and reliable power generation device. However, due to its high cost and immature technology, industrialization is difficult. The cathodic oxygen reduction reaction is an important part of the fuel cell. The commercial cathodic oxygen reduction catalyst mainly uses Pt and Pt alloys. However, the price is relatively ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/96B82Y30/00
CPCB82Y30/00H01M4/8605H01M4/96Y02E60/50
Inventor 庄桂林王建国柏家奇
Owner 嘉善县国创新能源研究院
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