Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydrophobic carbon-coated copper microsphere as well as preparation method and application thereof

A hydrophobic, carbon-coated technology, applied in electrolytic organic production, electrolytic components, electrodes, etc., which can solve the problems of CO2 leakage, hindering the commercialization of large-scale CCS deployment, high energy consumption of carbon capture and storage technology, and achieving mild conditions. , is conducive to large-scale industrial applications, and is conducive to the effect of popularization and application

Active Publication Date: 2021-02-02
EAST CHINA UNIV OF SCI & TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon capture and storage technology is an energy-intensive and expensive technology
Furthermore, a major problem facing CCS is the stored CO 2 Risk of leakage, which hinders commercialization of large-scale CCS deployment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrophobic carbon-coated copper microsphere as well as preparation method and application thereof
  • Hydrophobic carbon-coated copper microsphere as well as preparation method and application thereof
  • Hydrophobic carbon-coated copper microsphere as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1, preparation of hydrophobic carbon-coated copper microspheres

[0035]Dissolve 0.435 g of copper nitrate trihydrate and 0.676 g of polyvinylpyrrolidone in 15 mL and 30 mL of ethylene glycol, respectively. Subsequently, the copper nitrate solution was slowly dropped into the polyvinylpyrrolidone solution under vigorous stirring, and finally 0.322 g of chitosan was added. The solution was transferred to a polytetrafluoroethylene-lined steel jacket, and heated in an oven at 180° C. for 2 hours. After naturally cooling to room temperature, they were centrifuged and washed with deionized water and ethanol, and dried in a vacuum oven at 60 °C to obtain hydrophobic multilayer core-shell structure composite microspheres Cu x O@C.

[0036] Step 2. Performance Characterization Test

[0037] Through CHI660 electrochemical workstation, standard three-electrode system, CO 2 Saturated 0.1M KHCO 3 Solution (pH=6.8) was used as the electrolyte to support the glassy carbon e...

Embodiment 2

[0050] Dissolve 0.2 g of copper nitrate trihydrate and 0.3 g of polyvinylpyrrolidone in 5 mL and 10 mL of ethylene glycol, respectively. Subsequently, the copper nitrate solution was slowly dropped into the polyvinylpyrrolidone solution under vigorous stirring, and finally 0.2 g of chitosan was added. Transfer the solution to a polytetrafluoroethylene-lined steel jacket, and heat it in an oven at 210° C. for 1 hour. After naturally cooling to room temperature, they were centrifuged and washed with deionized water and ethanol, and dried in a vacuum oven at 60 °C to obtain hydrophobic multilayer core-shell structure composite microspheres Cu x O@C. Features and properties are similar to Example 1.

Embodiment 3

[0052] Dissolve 0.6 g of copper nitrate trihydrate and 0.9 g of polyvinylpyrrolidone in 30 mL and 60 mL of ethylene glycol, respectively. Then the copper nitrate solution was slowly dropped into the polyvinylpyrrolidone solution under the condition of vigorous stirring, and finally 0.6 g of chitosan was added. Transfer the solution to a polytetrafluoroethylene-lined steel jacket, and heat it in an oven at 150° C. for 4 hours. After naturally cooling to room temperature, they were centrifuged and washed with deionized water and ethanol, and dried in a vacuum oven at 60 °C to obtain hydrophobic multilayer core-shell structure composite microspheres Cu x O@C. Features and properties are similar to Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hydrophobic carbon-coated copper microsphere as well as a preparation method and application thereof. The particle size of the multilayer core-shell structure composite microsphere CuxO-coating C is about 1 micron, the interior is a metal copper / cuprous oxide compound with a core-shell structure, the outer layer is coated with a carbon layer with the thickness of about 50nanometers, and the contact angle between an assembled electrode and water is 148.2 degrees. Chitosan is used as a reducing agent and a carbon source, polyvinylpyrrolidone is used as a morphology control agent, and the hydrophobic composite microsphere CuxO-coating C with the multilayer core-shell structure is prepared through a hydrothermal method. The hydrophobic multilayer core-shell structurecomposite microsphere disclosed by the invention can be used for generating methane CH4 by electrocatalytic reduction of carbon dioxide CO2.

Description

technical field [0001] The invention relates to a hydrophobic carbon-coated copper microsphere. The composite microsphere is prepared by a hydrothermal method. The composite microsphere is used as a catalyst in the electrocatalytic reduction of CO 2 Preparation of CH 4 It has excellent performance, and also has potential application value in other fields of energy development and environmental protection. Background technique [0002] In the past few decades, fossil fuels have been partially replaced by clean and renewable energy sources, such as wind energy, tidal energy, solar energy, etc., to reduce CO 2 emissions. Despite the increasing rate of growth of renewable energy sources, the percentage of these renewable energy sources in total energy consumption today is still low (<5%). Furthermore, most of these renewable resources are geographical, oceanic and intermittent. Therefore, getting the most out of renewable energy often involves energy conversion and storag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25B3/03C25B3/26C25B11/091C25B11/065C25B11/052
Inventor 杨化桂张馨予刘鹏飞袁海洋毛芳欣杨晓华
Owner EAST CHINA UNIV OF SCI & TECH