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

Copper nano-particle/black phosphorus nano-sheet composite material, preparation method and application thereof

A technology of copper nanoparticles and composite materials, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of complicated experimental process and limited popularization and application, and achieve enhanced catalytic activity and enhanced catalytic performance. High performance and catalytic activity

Active Publication Date: 2018-10-23
NANJING UNIV OF POSTS & TELECOMM
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although some two-dimensional nanomaterials such as graphene have been applied to CO 2 In the field of electrochemical reduction (Atomically dispersed Ni(i) as the active site for electrochemical CO2reduction, NatureEnergy, 2018, 3, 140-147), but the experimental process of this method is complicated, which limits its popularization and application

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
  • Copper nano-particle/black phosphorus nano-sheet composite material, preparation method and application thereof
  • Copper nano-particle/black phosphorus nano-sheet composite material, preparation method and application thereof
  • Copper nano-particle/black phosphorus nano-sheet composite material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The copper nanoparticle / black phosphorus nanosheet composite material of the present invention comprises a black phosphorus nanosheet carrier and copper nanoparticles loaded on the carrier, and the particle diameter of the copper nanoparticle is 2-4 nm.

[0022] The preparation method of composite material of the present invention comprises the steps:

[0023] (1) Weigh 10 mg block black phosphorus and 10 mg sodium hydroxide and disperse them in 30 ml N-cyclohexyl-2-pyrrolidone to obtain a mixed solution for subsequent use;

[0024] (2) Put the above mixed solution into the autoclave of the supercritical device, and when the temperature of the autoclave reaches 40°C, the CO 2 Pump into the autoclave, and when the pressure of the autoclave reaches 15MPa, the system reaches a supercritical state and is maintained for 3 hours;

[0025] (3) After the reaction is over, release the CO in the autoclave 2 , cooled to room temperature, then sonicated the mixed solution for 6 h...

Embodiment 2

[0038] The copper nanoparticle / black phosphorus nanosheet composite material of the present invention comprises a black phosphorus nanosheet carrier and copper nanoparticles loaded on the carrier. The particle size of the copper nanoparticles is 2-5 nm.

[0039] The preparation method of composite material of the present invention comprises the steps:

[0040] (1) Weighing 10 mg block black phosphorus and 15 mg sodium hydroxide are dispersed in 30 ml N-cyclohexyl-2-pyrrolidone to obtain a mixed solution for subsequent use;

[0041](2) Put the mixed solution into the autoclave of the supercritical device, and when the temperature of the autoclave reaches 40°C, the CO 2 Pump into the autoclave, and when the pressure of the autoclave reaches 15MPa, the system reaches a supercritical state and is maintained for 3 hours;

[0042] (3) After the reaction is over, release the CO in the autoclave 2 , cooled to room temperature, and then the mixture was sonicated at 150W for 4 hours,...

Embodiment 3

[0046] The copper nanoparticle / black phosphorus nanosheet composite material of the present invention comprises a black phosphorus nanosheet carrier and copper nanoparticles loaded on the carrier. The particle size of the copper nanoparticles is 2-5 nm.

[0047] The preparation method of composite material of the present invention comprises the steps:

[0048] (1) Weigh 10 mg block black phosphorus and 20 mg sodium hydroxide and disperse them in 30 ml N-cyclohexyl-2-pyrrolidone to obtain a mixed solution for subsequent use;

[0049] (2) Put the mixed solution into the autoclave of the supercritical device, and when the temperature of the autoclave reaches 40°C, the CO 2 Pump into the autoclave, and when the pressure of the autoclave reaches 15MPa, the system reaches a supercritical state and is maintained for 3 hours;

[0050] (3) After the reaction is over, release the CO in the autoclave 2 , cooled down to room temperature, and then the mixture was sonicated at 120W for 5...

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
Particle sizeaaaaaaaaaa
Diameteraaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a copper nano-particle / black phosphorus nano-sheet composite material, and a preparation method and an application thereof. The composite material includes a carrier, black phosphorus nano-sheet, and copper nano-particles supported thereon. The preparation method includes the steps of: firstly dispersing the black phosphorus and NaOH in organic solvent to obtain a mixture liquid, performing a reaction to the mixture liquid in a supercritical reaction kettle at 40-70 DEG C under 15-20 MPa for 3-4 h to obtain the black phosphorus nano-sheet; then mixing the black phosphorus nano-sheet with a copper phase solution to perform a reaction at 50-60 DEG C for 10-120 min to prepare the composite material which is applied to electrochemically catalytically reducing CO2. The composite material has large specific surface area, is large in support quantity of the copper nano-particle and has great crystallization performance and catalytic performance, is simple in preparation method and low in cost and is environment-friendly. The composite material, when being applied to electrochemically catalytically reduce CO2, is high in catalytic activity and stability and has lowimpressed voltage.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a composite material of copper nanoparticles / black phosphorus nanosheets and a preparation method and application thereof. Background technique [0002] CO 2 It is thermodynamically stable (the standard molar enthalpy of formation is -393.51kJ·mol-1), inert and difficult to activate (the bond energy of C=O bond is 750kJ·mol-1). Therefore, to achieve CO 2 Chemical transformation under mild conditions is an extremely challenging study. CO 2 Electrochemical reduction can further convert electrical energy converted from renewable energy such as solar energy and wind energy into chemical energy, which can be stored in high value-added fuels and chemicals. Although CO 2 Electrochemical reduction has gradually attracted the attention and research interest of scientists from all over the world, but there are still many problems to be solved in this field, such as: (1) ...

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): B01J27/18B01J35/10C25B1/00C25B11/06
CPCC25B1/00B01J27/18C25B11/075B01J35/393B01J35/33B01J35/61Y02P20/54
Inventor 晏善成郭伟兰宋海增徐欣王俊
Owner NANJING UNIV OF POSTS & TELECOMM
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