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

A sensor based on black phosphorus electrode and its preparation method

A sensor, black phosphorus technology, applied in the direction of material electrochemical variables, can solve problems such as hindering the application of black phosphorus, and achieve the effect of excellent performance and broad application prospects

Active Publication Date: 2018-02-27
杭州稻美科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, one problem encountered in the application of black phosphorus nanoflakes is that they will degrade rapidly when they encounter water or oxygen, which hinders the application of black phosphorus in sensors.

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

[0027] The preparation of black phosphorus electrode, concrete steps are:

[0028] (1) Preparation of black phosphorus:

[0029] The raw materials are red phosphorus, white phosphorus, tin and tin tetraiodide. 25g of red phosphorus, 18g of white phosphorus, 47g of tin and 10g of tin tetraiodide are mixed and loaded into the high pressure reactor, and the pressure in the high pressure reactor is evacuated until the pressure in the high pressure reactor is 2.5GPa. Heat to make the temperature in the reactor 300°C, react for 50 minutes, cool down to 80°C within 1 hour, keep the temperature for 20 minutes, and cool down to room temperature within 1 hour to obtain black phosphorus.

[0030] (2) Preparation of black phosphorus impregnated with organic solvent PCL: grind black phosphorus to black phosphorus particles with a particle size of 30nm, disperse 20mg of black phosphorus particles into 120mL polycaprolactone (PCL) and ultrasonically shake for 50min to form a uniform solution...

Embodiment 2

[0033] The preparation of black phosphorus electrode, concrete steps are:

[0034] (1) Preparation of black phosphorus:

[0035] The raw materials are red phosphorus, white phosphorus, tin and tin tetraiodide. Mix 30g of red phosphorus, 15g of white phosphorus, 50g of tin and 5g of tin tetraiodide into a high-pressure reactor, add mercury as a catalyst, and vacuum into the high-pressure reactor. The pressure is 2.8GPa, heat the reactor to 400°C, react for 50 minutes, cool down to 60°C within 1.2 hours, keep warm for 25 minutes, and cool down to room temperature within 1.5 hours to obtain black phosphorus.

[0036] (2) Preparation of black phosphorus impregnated with organic solvent PLGA: grind black phosphorus to black phosphorus particles with a particle size of 50nm, disperse 25mg of black phosphorus particles into 100mL lactic acid-glycolic acid copolymer (PLGA) and ultrasonically shake for 100min to form a uniform Add ethylenediaminetetraacetic acid (EDTA) to the above so...

Embodiment 3

[0039] A sensor consisting of a measuring element, a conducting element, an intelligent analysis element and a display element.

[0040] The measuring element is composed of three sections, the first section is a dryer, which absorbs the moisture of the gas to be measured, the second section is a deoxygenation device, which absorbs oxygen in the gas to be measured, and reduces the oxygen concentration to 100ppm, and the third section is Black phosphorus electrode.

[0041] Information such as the amount of water absorbed by the dryer, the amount of oxygen absorbed by the oxygen removal device, and the amount of target gas absorbed by the black phosphorus electrode is transmitted to the intelligent analysis element through the conduction element. conducted to the display element.

[0042] Among them, the black phosphorus electrode of the measuring element, the specific preparation steps are:

[0043] (1) Preparation of black phosphorus:

[0044] The raw materials are red phosp...

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 diameteraaaaaaaaaa
ignition pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sensor based on a black phosphorus electrode and a preparation method thereof. The main steps include: 1. preparing black phosphorus, 2. impregnating the black phosphorus with an organic solvent, 3. preparing a black phosphorus electrode, and 4. preparing a sensor. The sensor based on the black phosphorus electrode involved in the present invention can prevent oxygen or oxides from directly contacting the black phosphorus, exert the excellent performance of the black phosphorus in electrochemical detection, and provide a good solution for the application of the black phosphorus electrode and the sensor based on the black phosphorus electrode basis and has broad application prospects.

Description

technical field [0001] The invention relates to a black phosphorus electrode and a preparation method thereof, in particular to a sensor based on the black phosphorus electrode and a preparation method thereof. Background technique [0002] Black Phosphorus (Black Phosphorus) is the most dense (2.69g / cm3) among the four common allotropes of phosphorus (ie: red phosphorus, white phosphorus, purple phosphorus, black phosphorus) 3 ), the most stable one, with metallic luster and good electrical conductivity. It has a layered structure similar to graphite, and the layers are combined by van der Waals force. The biggest feature of black phosphorus structure that is different from graphite is that the phosphorus atoms in the same layer are not in the same plane, arranged in wrinkled layers along the b-axis, and the interlayer distance is larger than that of graphite (about 5 angstroms). In addition, black phosphorus is a direct band gap semiconductor with good electron mobility ...

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): G01N27/30
Inventor 林曦
Owner 杭州稻美科技有限公司
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