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

Porous three-dimensional phosphorene and its preparation method and application

A technology of three-dimensional phosphorene and black phosphorene, which is applied in the field of inorganic nanomaterials, can solve the problems of hindering application and reducing the contact area of ​​electrolyte, and achieve the effect of increasing wettability, high utilization rate and stable three-dimensional structure

Active Publication Date: 2022-01-14
HUBEI MOPHOS TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-dimensional structure of phosphorene is easy to recombine, which reduces the contact area with the electrolyte, which seriously hinders its application in electrocatalysis.

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
  • Porous three-dimensional phosphorene and its preparation method and application
  • Porous three-dimensional phosphorene and its preparation method and application
  • Porous three-dimensional phosphorene and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for preparing porous three-dimensional black phosphorene, comprising the steps of:

[0050] (1) Use 1*0.5*0.05cm black phosphorus crystal as cathode, 2*2*0.05cm platinum sheet as auxiliary electrode, N,N-dimethylformamide as intercalation agent, tetrabutyl Ammonium bromide is used as an auxiliary intercalation agent, the concentration of tetrabutylammonium bromide is 0.01M, and an H-type electrolytic cell is assembled;

[0051] (2) Using a direct current power supply to expand the black phosphorus crystal for 1min under the condition of a voltage of 10V, after the expansion is completed, the black phosphorus with a rough surface and doubled volume is obtained;

[0052] (3) Use a 400-mesh filter screen to filter the expanded black phosphorus, then use N,N-dimethylformamide, ethanol, acetone, and cyclohexane to wash the expanded black phosphorus for 3 times, and then wash the black phosphorus Phosphorus was soaked in cyclohexane for 30 minutes, then placed in li...

Embodiment 2

[0058] A method for preparing porous three-dimensional black phosphorene, comprising the steps of:

[0059] (1) Use 2*1*0.05cm black phosphorus crystal as cathode, 2*2*0.05cm carbon cloth as auxiliary electrode, N-methylpyrrolidone as intercalation agent, tetrapentyl ammonium iodide as Auxiliary intercalation agent, the concentration of tetrapentyl ammonium iodide is 0.025M, assembled into an H-type electrolytic cell;

[0060] (2) Adopting DC power supply to carry out expansion treatment to black phosphorus crystal under the condition of voltage of 10V for 3min, obtain rough surface and black phosphorus with doubled volume after the expansion is completed;

[0061] (3) Adopt 400 mesh filter screens to filter the expanded black phosphorus, then use N-methylpyrrolidone, ethanol, acetone, carbon tetrachloride to wash the expanded black phosphorus 3 times respectively, then place the washed black phosphorus in Soak in carbon tetrachloride for 30 minutes, then place in liquid nitr...

Embodiment 3

[0065] A method for preparing porous three-dimensional black phosphorene, comprising the steps of:

[0066] (1) Use 2.5*1.5*0.05cm black phosphorus crystal as cathode, 3*3*0.05cm titanium mesh as auxiliary electrode, dimethyl sulfoxide as intercalation agent, and tetrahexylammonium bromide as auxiliary The intercalation agent, the concentration of tetrahexyl ammonium bromide is 0.05M, assembled into an H-type electrolytic cell;

[0067] (2) Adopting DC power supply to expand the black phosphorus crystal for 5min under the condition of voltage of 20V, after the expansion is completed, obtain the black phosphorus with rough surface and multiplied volume;

[0068] (3) Use 400 mesh filter screens to filter the expanded black phosphorus, then use dimethyl sulfoxide, ethanol, acetone, and cyclohexane to wash the expanded black phosphorus for 3 times, then place the washed black phosphorus in the ring Soak in hexane for 30 minutes, then place in liquid nitrogen and freeze at -50°C f...

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
porosityaaaaaaaaaa
porosityaaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a porous three-dimensional phosphorene and its preparation method and application. The porous three-dimensional phosphorene has a stable three-dimensional structure formed by the self-crosslinking assembly of black phosphorene, the porosity is 50% to 98%, and the specific surface area is 200~2000m 2 / g. In the present invention, a strong electric field is applied in a two-electrode or multi-electrode system through an electrochemical method, and the intercalation agent and the auxiliary intercalation agent move directionally to the black phosphorus crystal and enter the interlayer, destroying the interlayer force of the black phosphorus crystal, and making the black phosphorus crystal The phosphorus layers maintain cross-linking but the interlayer distance increases, so that the black phosphorus crystals expand and the pores become larger, and the expanded black phosphorus is treated by freeze-drying to obtain porous three-dimensional black phosphorene. The porous three-dimensional black phosphorene has excellent physical and chemical properties, which can not only increase the wettability of the electrolyte to the electrode material, but also facilitate the adsorption and diffusion of reactants and metabolites during the reaction process, which can be applied to electrochemical catalytic hydrogen production field.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanometer materials, and specifically relates to a porous three-dimensional phosphorene and a preparation method thereof, as well as the application of the porous three-dimensional phosphorene as a catalyst for electrolyzing water to produce hydrogen. Background technique [0002] With the development of the economy, the increasing consumption of fossil energy is facing the problem of depletion. Environmental pollution and temperature changes caused by fossil energy consumption have become urgent problems to be solved, and it is imminent to seek renewable green energy. Solar energy and wind energy are representative renewable energy sources, and they are applied on a large scale in many countries and regions. However, when these clean energy sources are used as fossil energy sources on a global scale, there are two problems. Solar and wind power generation relies on uncontrollable sun or wind,...

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): C01B25/02
CPCC01B25/02
Inventor 喻学锋刘丹妮王佳宏黄浩
Owner HUBEI MOPHOS TECH CO LTD
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