A kind of preparation method and application of cuo nanoparticle doped cu-mof/carbon dot composite catalyst

A technology of composite catalysts and nanoparticles, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as resource constraints and high costs, and achieve low cost , high rate and increased activity

Inactive Publication Date: 2021-07-30
UNIV OF JINAN
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has been proved that NH 3 Feasibility of electrochemical synthesis of , but their high cost and limited resources limit their large-scale application, therefore, the development of cheap room temperature N 2 reduced to NH 3 Catalysts are important

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 A preparation method of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0033] (1) Preparation of raw material mixture

[0034] 0.10 g H 6 L ligand was dissolved in 8 mL N,N-dimethylacetamide DMA, 5 mL dimethyl sulfoxide DMSO, 0.3 mL H 2 In the mixed solvent composed of O, add 3.5 mL of HBF with a mass fraction of 40% 4 solution, a clear ligand solution was obtained; continue to add 0.64 g of Cu (NO3 ) 2 ·3H 2 O and the glucose blend of 0.2 g, obtain raw material mixed solution;

[0035] (2) Preparation of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0036] The raw material mixture was heated at 90 ºC for 2 days to prepare glucose-doped polynitrogen Cu-MOF crystals; after washing the Cu-MOF crystals with water, they were oxidized-pyrolyzed in a tube furnace at 300 ℃ for 2 h to obtain CuO Nanoparticle-doped Cu-MOF / carbon dot composite catalyst.

Embodiment 2

[0037] Example 2 A preparation method of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0038] (1) Preparation of raw material mixture

[0039] 0.12 g H 6 L ligand was dissolved in 10 mL N,N-dimethylacetamide DMA, 8.5 mL dimethyl sulfoxide DMSO, 0.4 mL H 2 In the mixed solvent composed of O, add 3.7 mL of HBF with a mass fraction of 40% 4 solution, a clear ligand solution was obtained; continue to add 0.68 g of Cu (NO 3 ) 2 ·3H 2 O and the glucose blend of 0.25 g, obtain raw material mixed solution;

[0040] (2) Preparation of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0041] The raw material mixture was heated at 90 ºC for 2 days to prepare glucose-doped polynitrogen Cu-MOF crystals; after washing the Cu-MOF crystals with water, they were oxidized-pyrolyzed in a tube furnace at 300 ℃ for 2 h to obtain CuO Nanoparticle-doped Cu-MOF / carbon dot composite catalyst.

Embodiment 3

[0042] Example 3 A preparation method of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0043] (1) Preparation of raw material mixture

[0044] 0.14 g H 6 L ligand was dissolved in 12 mL N,N-dimethylacetamide DMA, 12 mL dimethyl sulfoxide DMSO, 0.5 mL H 2 In the mixed solvent composed of O, add 4.0 mL of HBF with a mass fraction of 40% 4 solution, a clear ligand solution was obtained; continue to add 0.70 g of Cu (NO 3 ) 2 ·3H 2 O and the glucose blend of 0.30 g, obtain raw material mixed solution;

[0045] (2) Preparation of CuO nanoparticles doped Cu-MOF / carbon dot composite catalyst

[0046] The raw material mixture was heated at 90 ºC for 2 days to prepare glucose-doped polynitrogen Cu-MOF crystals; after washing the Cu-MOF crystals with water, they were oxidized-pyrolyzed in a tube furnace at 300 ℃ for 2 h to obtain CuO Nanoparticle-doped Cu-MOF / carbon dot composite catalyst.

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 discloses a preparation method of a Cu-MOF / carbon dot composite catalyst doped with CuO nanoparticles and the application of the catalyst for electrocatalytic nitrogen reduction at room temperature, belonging to the technical fields of catalytic technology and nanocomposite materials. The main step is to convert the ligand H 6 L solution and Cu(NO 3 ) 2 3H 2 O and glucose were blended to obtain a raw material mixture; the raw material mixture was heated at 90°C for 2 days to obtain a glucose-doped polynitrogen Cu-MOF crystal; the glucose-doped polynitrogen Cu-MOF crystal was placed in the air atmosphere of a tube furnace Oxidation-pyrolysis at 300 °C for 2 h to prepare CuO nanoparticles-doped Cu-MOF / carbon dot composite catalyst. The raw materials used in the preparation of the catalyst have low cost and simple process, and the catalyst is used for electrocatalytic reduction of nitrogen into ammonia at room temperature, and has good catalytic performance and industrial prospect.

Description

technical field [0001] The invention discloses a preparation method of a Cu-MOF / carbon dot composite catalyst doped with CuO nanoparticles and the application of the catalyst to electrocatalyze the reduction of nitrogen at room temperature into ammonia, belonging to the technical fields of catalyst technology and nanocomposite materials. Background technique [0002] NH 3 It is one of the most important chemicals at present, and its annual output ranks first among all kinds of chemicals, and our country is the first to synthesize NH 3 As a large industrial country, as a high-energy-consuming industry, the synthesis of NH 3 Industry consumes 1-2% of the global energy, NH 3 Its downstream products are mainly agricultural chemical fertilizers, and others such as synthetic fibers, explosives, and industrial fuels are also important downstream products. modern synthetic NH 3 The industrialization of technology began in 1905. The German chemist Haber proved through a large num...

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): B01J31/28B01J35/10C25B1/27C25B11/095
CPCB01J31/28B01J35/0033B01J35/10C25B1/00C25B11/091
Inventor 侯莹匡轩
Owner UNIV OF JINAN
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