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Method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolytic bio-oil

A transition metal and composite electrode technology, which is applied in the preparation/purification of carbon, chemical instruments and methods, hybrid capacitor electrodes, etc., can solve the problems of high cost and complicated preparation process, and achieve low price, simple preparation process and simplified preparation The effect of craft

Active Publication Date: 2021-03-26
山东济清科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the invention is complicated and the cost is high

Method used

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  • Method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolytic bio-oil
  • Method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolytic bio-oil
  • Method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolytic bio-oil

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Preparation of carbon-based Ni from bio-oil 3 S 2 / C-1-550-1 composite electrode material, including the following steps:

[0031] (1) Prepare bio-oil absorption solution, in which the volume ratio of methanol to water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of nickel sulfate solution 1%, and then stir with a magnetic stirrer for 40 min to make Nickel sulfate is fully dissolved evenly, then take 1 part of the quality of the solution and put it into a bio-oil collection device;

[0032] (2) Add 1 mass of sycamore leaves to the tube furnace, connect the bio-oil collection device, connect the bio-oil collection device, and then raise the temperature of the tube furnace to 600°C under nitrogen atmosphere, and keep it warm for 1 h;

[0033] (3) Dry the collected bio-oil in an explosion-proof blast drying oven at 80°C for 18 h, then transfer the sample to a tube furnace for calcination at a gas flow rate of 60 ml / min, where H 2 ...

Embodiment 2

[0035] Preparation of Ni from bio-oil 3 S 2 / C-3-550-1 composite electrode material, including the following steps:

[0036] (1) Prepare bio-oil absorption solution, in which the volume ratio of methanol to water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of nickel sulfate solution 3%, and then stir with a magnetic stirrer for 40 min to make Nickel sulfate is fully dissolved evenly, then take 1 part of the quality of the solution and put it into a bio-oil collection device;

[0037] (2) Add 1 mass of sycamore leaves to the tube furnace, connect the bio-oil collection device, connect the bio-oil collection device, and then raise the temperature of the tube furnace to 600°C under nitrogen atmosphere, and keep it warm for 1 h;

[0038] (3) Dry the collected bio-oil in an explosion-proof blast drying oven at 80°C for 18 h, then transfer the sample to a tube furnace for calcination at a gas flow rate of 60 ml / min, where H 2 :N 2 =30 ml:...

Embodiment 3

[0040] Preparation of Ni from bio-oil 3 S 2 / C-5-550-1 composite electrode material, including the following steps:

[0041] (1) Prepare bio-oil absorption solution, in which the volume ratio of methanol to water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of nickel sulfate solution 5%, and then stir with a magnetic stirrer for 40 min to make Nickel sulfate is fully dissolved evenly, then take 1 part of the quality of the solution and put it into a bio-oil collection device;

[0042] (2) Add 1 mass of sycamore leaves to the tube furnace, connect the bio-oil collection device, connect the bio-oil collection device, and then raise the temperature of the tube furnace to 600°C under nitrogen atmosphere, and keep it warm for 1 h;

[0043] (3) Dry the collected bio-oil in an explosion-proof blast drying oven at 80°C for 18 h, then transfer the sample to a tube furnace for calcination at a gas flow rate of 60 ml / min, where H 2 :N2 =30 ml: 3...

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Abstract

The invention belongs to the technical field of biomass resource utilization and electrode material preparation, and relates to a method for preparing a carbon-based transition metal sulfide compositeelectrode material based on pyrolysis bio-oil. The method comprises the following steps: firstly, dissolving nickel sulfate or cobalt sulfate into an alcohol / water solution to prepare a bio-oil absorption solution, capturing bio-oil generated by biomass pyrolysis by using the absorption liquid, drying the absorption liquid after the pyrolysis reaction is finished, calcining the absorption liquidin a reducing atmosphere, and cooling the absorption liquid to room temperature to obtain the composite electrode material. According to the invention, bio-oil generated by biomass pyrolysis is used as a raw material, and the prepared composite electrode material has excellent supercapacitor performance: under the current density of 1 A / g, the specific capacitance of the composite electrode material is as high as 1000 F / g or above. Besides, the biomass raw material is low in price, green and sustainable, the preparation process is simple, and a new way and idea are provided for biomass resource high-value conversion and preparation of the carbon-based transition metal sulfide composite electrode material.

Description

technical field [0001] The invention relates to a method for preparing a carbon-based transition metal sulfide composite electrode material, in particular to a method for preparing a carbon-based transition metal sulfide composite electrode material based on pyrolysis bio-oil, which belongs to the utilization of biomass resources and the preparation of electrode materials technology field. Background technique [0002] Electrochemical supercapacitor is a new type of energy storage device, which relies on electric double layer capacitance and Faraday pseudocapacitance to store energy. Electrochemical supercapacitors are expected to be widely used in daily life, aerospace, national defense and other fields due to their advantages such as ultra-long cycle life, ultra-fast charge and discharge speed, high power density and energy density. [0003] Transition metal sulfides have a 3d valence electron shell structure and excellent optical, electrical, magnetic and catalytic prope...

Claims

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Application Information

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IPC IPC(8): C01B32/05C01G51/00C01G53/11H01G11/32H01G11/86
CPCC01B32/05C01G53/11C01G51/30H01G11/86H01G11/32C01P2002/72C01P2004/80C01P2006/40Y02E60/13
Inventor 贾鹏李灿灿吕高金夏光美郑斌
Owner 山东济清科技服务有限公司
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