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A method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolysis 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. The effect of craftsmanship

Active Publication Date: 2022-07-15
山东济清科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • A method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolysis bio-oil
  • A method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolysis bio-oil
  • A method for preparing carbon-based transition metal sulfide composite electrode material based on pyrolysis bio-oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of carbon-based Ni based on bio-oil 3 S 2 / C-1-550-1 composite electrode material, including the following steps:

[0027] (1) Prepare a bio-oil absorption solution, in which the volume ratio of methanol and water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of the nickel sulfate solution 1%, and then stir with a magnetic stirrer for 40 min to make the solution. The nickel sulfate is fully dissolved evenly, and then takes 1 part of the quality of the solution and loads it into the bio-oil collecting device;

[0028] (2) Add 1 part mass of Plana sylvestris leaves into the tube furnace, connect the bio-oil collecting device, connect the bio-oil collecting device, then heat the tube furnace to 600 ℃ under nitrogen atmosphere, and keep it for 1 h;

[0029] (3) The collected bio-oil was dried in an explosion-proof blast drying oven at 80 °C for 18 h, and then the sample was transferred to a tube furnace for calcination. T...

Embodiment 2

[0031] Preparation of Ni based on bio-oil 3 S 2 / C-3-550-1 composite electrode material, including the following steps:

[0032] (1) Prepare a bio-oil absorption solution, wherein the volume ratio of methanol and water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of the nickel sulfate solution 3%, and then stir with a magnetic stirrer for 40 min to make the solution. The nickel sulfate is fully dissolved evenly, and then takes 1 part of the quality of the solution and loads it into the bio-oil collecting device;

[0033] (2) Add 1 part mass of Plana sylvestris leaves into the tube furnace, connect the bio-oil collecting device, connect the bio-oil collecting device, then heat the tube furnace to 600 ℃ under nitrogen atmosphere, and keep it for 1 h;

[0034] (3) The collected bio-oil was dried in an explosion-proof blast drying oven at 80 °C for 18 h, and then the sample was transferred to a tube furnace for calcination. The gas flow ra...

Embodiment 3

[0036] Preparation of Ni based on bio-oil 3 S 2 / C-5-550-1 composite electrode material, including the following steps:

[0037] (1) Prepare a bio-oil absorption solution, in which the volume ratio of methanol and water is 1:2, add nickel sulfate to the absorption solution to make the mass concentration of the nickel sulfate solution 5%, and then stir with a magnetic stirrer for 40 min to make the solution. The nickel sulfate is fully dissolved evenly, and then takes 1 part of the quality of the solution and loads it into the bio-oil collecting device;

[0038] (2) Add 1 part mass of Plana sylvestris leaves into the tube furnace, connect the bio-oil collecting device, connect the bio-oil collecting device, then heat the tube furnace to 600 ℃ under nitrogen atmosphere, and keep it for 1 h;

[0039] (3) The collected bio-oil was dried in an explosion-proof blast drying oven at 80 °C for 18 h, and then the sample was transferred to a tube furnace for calcination. The gas flow r...

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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 composite electrode material based on pyrolysis bio-oil. First, dissolving nickel sulfate or cobalt sulfate into an alcohol / water solution to prepare a bio-oil absorbing solution; then using the absorbing solution to capture the bio-oil produced by biomass pyrolysis, drying the absorbing solution after the pyrolysis reaction, and then passing After being calcined in a reducing atmosphere and cooled to room temperature, the composite electrode material can be prepared. The invention uses bio-oil produced by biomass pyrolysis as 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 above. In addition, the biomass raw material of the invention is cheap, green and sustainable, and the preparation process is simple, which provides a new approach and idea for the high-value conversion of biomass resources and the preparation of carbon-based transition metal sulfide composite electrode materials.

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, belonging to biomass resource utilization and electrode material preparation technical field. Background technique [0002] Electrochemical supercapacitors are a new type of energy storage device that rely 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 charging and discharging 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 properties, and have bec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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