Catalyst for carbon dioxide reduction through electrocatalysis and preparation method thereof

A carbon dioxide and catalyst technology, which is applied in the field of electrocatalytic carbon dioxide reduction catalysts and its preparation, can solve the problems of low selectivity of target products, increased catalyst cost, poor catalyst stability, etc., to improve Faradaic efficiency, increase contact specific surface area, The effect of energy efficiency

Inactive Publication Date: 2019-09-27
INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Electrocatalyst is the key to realize the electrocatalytic reduction of carbon dioxide. At present, the choice of electrode materials is mostly concentrated in noble metals or transition metals with high prices, which greatly increases the cost of catalysts. At the same time, the electrocatalytic process also has poor catalyst stability and the target product Therefore, it is of great research significance to prepare efficient and cheap carbon dioxide electrochemical reduction catalysts.

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
  • Catalyst for carbon dioxide reduction through electrocatalysis and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of the catalyst for the electrocatalytic reduction of carbon dioxide is characterized in that it comprises the following steps:

[0019] (1) Preparation of MXene: Immerse 1 g of ground MAX phase ceramic powder into 20 mL of HF solution with a mass fraction of 40%, raise the temperature to 80°C, and centrifuge to obtain the product after magnetic stirring for 18 hours, wash with deionized water until neutral , placed in an oven and dried at 70°C for 18 hours to obtain MXene, in which the MAX phase ceramic is Ti 3 AlC 2 、Ti 2 AlC, Cr 2 At least one of AlC; the resulting MXene is Ti 3 C 2 T x (T x -OH, -F and other functional groups), Ti 2 CT x (T x -OH, -F and other functional groups), Cr 2 CT x (T x is at least one of functional groups such as -OH, -F);

[0020] (2) Preparation of indium zinc sulfide-MXene composite material: Take 0.5g of indium nitrate, 1g of thiourea, 1g of zinc nitrate and 0.1g of MXene prepared in step (1) and diss...

Embodiment 2

[0022] The preparation method of the catalyst for the electrocatalytic reduction of carbon dioxide is characterized in that it comprises the following steps:

[0023] (1) Preparation of MXene: Immerse 1 g of ground MAX phase ceramic powder into 20 mL of HF solution with a mass fraction of 30%, raise the temperature to 50°C, and centrifuge to obtain the product after magnetic stirring for 12 hours, wash with deionized water until neutral , placed in an oven and dried at 60°C for 12 hours to obtain MXene, in which the MAX phase ceramic is Ti 3 AlC 2 、Ti 2 AlC, Cr 2 At least one of AlC; the resulting MXene is Ti 3 C 2 T x (T x -OH, -F and other functional groups), Ti 2 CT x (T x -OH, -F and other functional groups), Cr 2 CT x (T x is at least one of functional groups such as -OH, -F);

[0024] (2) Preparation of indium zinc sulfide-MXene composite material: Dissolve 1g of indium nitrate, 2g of thiourea, 2g of zinc nitrate and 0.5g of MXene prepared in step (1) in 100...

Embodiment 3

[0026] The preparation method of the catalyst for the electrocatalytic reduction of carbon dioxide is characterized in that it comprises the following steps:

[0027] (1) Preparation of MXene: Immerse 1 g of ground MAX phase ceramic powder into 20 mL of HF solution with a mass fraction of 50%, raise the temperature to 90°C, and centrifuge to obtain the product after magnetic stirring for 24 hours, wash with deionized water until neutral , placed in an oven and dried at 80°C for 24 hours to obtain MXene, in which the MAX phase ceramic is Ti 3 AlC 2 、Ti 2 AlC, Cr 2 At least one of AlC; the resulting MXene is Ti 3 C 2 T x (T x -OH, -F and other functional groups), Ti 2 CT x (T x -OH, -F and other functional groups), Cr 2 CT x (T x is at least one of functional groups such as -OH, -F);

[0028] (2) Preparation of indium zinc sulfide-MXene composite material: Take 0.8g of indium nitrate, 1.5g of thiourea, 1.5g of zinc nitrate and 0.3g of MXene prepared in step (1) and ...

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

No PUM Login to view more

Abstract

The invention belongs to the technical field of carbon dioxide reduction through electrocatalysis, and particularly relates to a catalyst for carbon dioxide reduction through electrocatalysis and a preparation method thereof. The catalyst is an indium zinc sulfide-MXene composite material. The catalyst has high electrocatalytic activity and selectivity on the carbon dioxide reduction, and significantly improves the energy efficiency for carbon dioxide utilization.

Description

technical field [0001] The invention belongs to the technical field of electrocatalytic reduction of carbon dioxide, and in particular relates to a catalyst for electrocatalytic reduction of carbon dioxide and a preparation method thereof. Background technique [0002] With the rapid development of industry and the massive consumption of fossil fuels, CO in the atmosphere 2 The content of carbon dioxide has continued to increase in the past few decades, from 280ppm before the industrial revolution to the current 400ppm. From an economic point of view, carbon dioxide has become an important C1 raw material in organic synthesis because of its high functionality, abundance, renewable carbon source, and environmental friendliness. Therefore, how to resource carbon dioxide and convert it into liquid fuel or other useful chemicals, so as to achieve energy saving and emission reduction, CO 2 Recycling and CO in a macro sense 2 "Zero emission" has become a focus of everyone's att...

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 Applications(China)
IPC IPC(8): B01J27/22B01J35/10C25B3/04C25B11/06C25B3/25
CPCB01J35/0033B01J27/22B01J35/0073C25B11/04B01J35/1004C25B3/25
Inventor 钊妍王加义
Owner INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap