Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An electrolytic cell for electrochemical reduction of carbon dioxide and its application

A carbon dioxide and electrolytic cell technology, applied in the direction of electrolytic process, electrolytic components, electrolytic organic production, etc., can solve the problems of ineffective improvement of CO2 conversion rate, unsuitable for large-scale application, intensified side reaction of hydrogen evolution, etc., to expand the electrochemical reaction area, increase the electrochemical reaction speed, and control the effect of simplicity

Active Publication Date: 2017-11-14
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the gas diffusion electrode can alleviate the mass transfer polarization to a certain extent, it is still affected by the CO 2 The limitation of low solubility in aqueous solution, and the hydrogen evolution side reaction will be intensified with the increase of the reaction area, so that the CO cannot be effectively improved. 2 conversion rate of
However, the use of organic solvents, including ionic liquids, as catholytes is not only expensive, but also some reagents are toxic and involve environmental issues, so they are not suitable for large-scale applications.

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
  • An electrolytic cell for electrochemical reduction of carbon dioxide and its application
  • An electrolytic cell for electrochemical reduction of carbon dioxide and its application
  • An electrolytic cell for electrochemical reduction of carbon dioxide and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 1) Seal the foamed copper material with a porosity of 85%, a pore diameter of 0.1 mm, and a thickness of 1 mm with a material coated with a thermosetting resin to obtain a working electrode with an exposed geometric area of ​​3 cm 2 .

[0063] 2) Place the working electrode between the flanges of the upper and lower chambers of the cathode chamber made of plexiglass with a thickness of 4mm, use silica gel material as the sealing element, and place the upper chamber, the working electrode and the lower chamber of the cathode chamber Make connections and fastenings to ensure that there is no leakage of liquids and gases;

[0064] 3) The cathode chamber is connected with the anode chamber made of plexiglass, and the NF115 produced by Dupont is used as the ion exchange membrane, and the seal is checked until there is no gas and liquid leakage;

[0065] 4) Pour 0.5M NaHCO into the cathode chamber 3 Aqueous solution, pour 0.1M H into the anode chamber 2 SO 4 aqueous solut...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an electrolytic cell for electrochemical reduction of carbon dioxide and its application, comprising a cathode chamber, an anode chamber and a gas-liquid separator; It is a container with an open lower end, the upper cavity is placed above the lower cavity, and a first flange is provided at the opening ends of the two cavities, and the two cavities are connected through the first flange; it is different from the traditional H Compared with the type electrolytic cell, it can significantly improve the conversion rate of carbon dioxide, increase the electrochemical reaction speed, and at the same time, it is easy to operate and convenient to calculate.

Description

technical field [0001] The invention belongs to the technical field of carbon dioxide electrochemical reduction, in particular to an electrolytic cell for electrochemical reduction of carbon dioxide. Background technique [0002] Electrochemical reduction of CO 2 (ERC) technology is the use of electricity to convert CO 2 Reduction to various organic chemicals to achieve CO 2 A technology for resource utilization. with other COs 2 Compared with the conversion technology, the outstanding advantage of the ERC technology is that water can be used as the hydrogen source for the reaction, and CO can be realized at normal temperature and pressure. 2 High-efficiency conversion, so there is no need for energy consumption caused by hydrogen production, heating, and pressurization required by chemical conversion technology, and the investment in equipment is small. [0003] Currently, in CO 2 The electrolytic cell used in the electrochemical research is a conventional H-type, as ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C25B9/06C25B9/00C25B11/03C25B3/04C25B9/17C25B3/25
Inventor 邱艳玲张华民钟和香毛景霞
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com