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

Preparation method and application of MOF-derived CuAl/N-C catalyst

A catalyst and cual-mofs technology, which is applied in the preparation and application of MOF-derived CuAl/N-C catalysts, can solve the problems of precise control or substitution of bimetallic difficult atoms, low current density, and poor Faraday efficiency, etc., to improve the product selective effect

Active Publication Date: 2021-03-19
HARBIN INST OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the existing double gold metals / carbides derived from MOFs as precursors. The doping between double metals is difficult to achieve precise control or substitution of atomic positions, and most of them are used for electrocatalytic reduction of CO. 2 CO is produced and cannot be further reduced to C 2 h 4 ; Solve the existing Cu catalytic reduction of CO 2 Product C 2 h 4 , there exists C 2 h 4 The Faraday efficiency is poor, the current density is low and the competition hydrogen evolution reaction is serious, and the preparation method and application of a MOF-derived CuAl / N-C catalyst are provided

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
  • Preparation method and application of MOF-derived CuAl/N-C catalyst
  • Preparation method and application of MOF-derived CuAl/N-C catalyst
  • Preparation method and application of MOF-derived CuAl/N-C catalyst

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0034] Specific embodiment one: present embodiment a kind of preparation method of CuAl / N-C catalyst derived from MOF, it is finished according to the following steps:

[0035] 1. Weighing:

[0036] Weighing deprotonating reagent, organic solvent, ligand, copper salt and aluminum salt;

[0037] The volume ratio of the amount of the substance of the deprotonating reagent to the organic solvent is (1.2~7.2)mmol:35mL; the volume ratio of the amount of the substance of the ligand to the organic solvent is (0.3~1.2)mmol: 35mL; the mol ratio of the copper salt and the aluminum salt is (0.1~99):1; the volume ratio of the sum of the amount of the copper salt and the aluminum salt to the organic solvent is (1.2~2.4)mmol: 35mL;

[0038] 2. Preparation of precursor salt solution:

[0039] Dissolving the ligand, copper salt and aluminum salt weighed in step 1 in an organic solvent to obtain a precursor salt solution;

[0040] 3. Preparation of CuAl-MOFs:

[0041] Adding the deprotona...

specific Embodiment approach 2

[0050] Embodiment 2: This embodiment differs from Embodiment 1 in that the deprotonating reagent described in step 1 is sodium hydroxide, triethylamine or sodium methoxide. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0051] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the copper salt described in step one is Cu(CH 3 COO) 2 , CuCl 2 2H 2 O or Cu(NO 3 ) 2 ·3H 2 O. Others are the same as in the first or second embodiment.

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
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and application of an MOF-derived CuAl / N-C catalyst, and relates to a preparation method and application of an MOF-derived catalyst. The invention aims tosolve the problems that in the existing bimetal / carbide derived by taking MOFs as a precursor, accurate control or substitution of atomic positions is difficult to realize due to doping between bimetals, and most bimetals are used for producing CO by electrocatalytic reduction of CO2 and cannot be further reduced into C2H4; by means of the technical scheme, the problems of poor Faraday efficiencyof C2H4, low current density and serious competitive hydrogen evolution reaction when CO2 is catalytically reduced by Cu to produce C2H4 in the prior art are solved. The preparation method comprises the following steps: 1, weighing raw materials; 2, preparing a precursor salt solution; 3, preparing CuAl-MOFs; and 4, preparing the CuAl / N-C. The technical scheme is used for the preparation method and the application of the MOF-derived CuAl / NC catalyst.

Description

technical field [0001] The invention relates to a preparation method and application of a MOF-derived catalyst. Background technique [0002] Electrochemical reduction of CO 2 The technology is a method that can be carried out under normal temperature and pressure, and can convert CO 2 Conversion to valuable fuels or chemicals such as CH 3 OH, CH 4 、C 2 h 4 etc., the reaction conditions are mild, no high temperature and high pressure are required, the equipment is flexible to operate, and the product selectivity and reaction speed can be regulated by simply changing the electrolysis conditions, which is considered as CO 2 It is the most promising transformation technology in resource utilization. However, due to CO 2 The molecular chemical properties are stable, and its activation and bond breaking require high energy. For example, thermal conversion, photochemical and electrochemical technologies all require external catalysts to reduce energy consumption and increas...

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): C25B11/091C25B3/25C25B3/03
Inventor 王志江单晶晶
Owner HARBIN INST OF TECH
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