Unlock instant, AI-driven research and patent intelligence for your innovation.

Crystal red phosphorus fiber and efficient preparation method thereof

A technology for red phosphorus and crystal, applied in the field of crystalline red phosphorus fiber and its efficient preparation, can solve the problems of reducing the quality of crystalline red phosphorus fiber material, unable to realize large-scale single-phase crystalline phosphorus preparation, etc., achieving simple operation and ensuring unity , the effect of broad market prospects

Pending Publication Date: 2022-01-21
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each structure of crystalline phosphorus has unique properties. However, the method of mineralizer-assisted synthesis of crystalline phosphorus is limited by the type and application of mineralizers, and cannot achieve large-scale preparation of single-phase crystalline phosphorus.
Forcing phosphorus materials to be unable to be widely used in practical life such as photoelectrocatalytic hydrogen production, degradation of environmental pollutants and medical fields
[0003] In addition, in the prior art, iodine is often used as a mineralizer to prepare crystalline red phosphorus fiber materials, and the presence of the mineralizer will promote the transformation of the reactant to a specific energy structure, and the effect of different mineralizers on the same reactant will vary. There are differences that reduce the quality of crystal red phosphorus fiber material

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
  • Crystal red phosphorus fiber and efficient preparation method thereof
  • Crystal red phosphorus fiber and efficient preparation method thereof
  • Crystal red phosphorus fiber and efficient preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of crystalline red phosphorus fiber, comprising the following steps:

[0024] Add 100mg of red phosphorus powder into a glass ampoule, vacuum seal it, place it in a muffle furnace, raise the temperature to 580°C, and keep it warm for 30 minutes. After the reaction, lower the temperature to 120°C at a rate of 0.5°C / min. Then naturally cool to room temperature to obtain red crystal red phosphorus fiber.

[0025] figure 1 It is the SEM picture of the crystalline red phosphorus fiber prepared in Example 1 of the present invention. The SEM picture shows a material with a microribbon structure and has a larger aspect ratio; figure 2 The XRD spectrum of the crystalline red phosphorus fiber prepared in Example 1 of the present invention shows that the sample has a high degree of crystallinity, and the diffraction peaks correspond to the previously reported crystalline red phosphorus fiber.

Embodiment 2

[0027] A preparation method of crystalline red phosphorus fiber, comprising the following steps:

[0028] Add 150mg of red phosphorus powder into a glass ampoule, vacuum seal it, place it in a muffle furnace, raise the temperature to 700°C, and keep it warm for 2 hours. After the reaction, reduce the temperature to 100°C at a rate of 2°C / min. Then naturally cool to room temperature to obtain red crystal red phosphorus fiber.

Embodiment 3

[0030] A preparation method of crystalline red phosphorus fiber, comprising the following steps:

[0031] Add 100mg of red phosphorus powder into a glass ampoule, vacuum seal it, place it in a muffle furnace, raise the temperature to 650°C, and keep it warm for 5 hours. After the reaction, lower the temperature to 110°C at a rate of 1°C / min. Then naturally cool to room temperature to obtain red crystal red phosphorus fiber.

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 belongs to the technical field of crystal phosphorus material preparation, and particularly relates to a crystal red phosphorus fiber and an efficient preparation method thereof. The method comprises the following steps: adding red phosphorus powder into a closed environment, raising the temperature to 580 DEG C or above, carrying out heat preservation reaction for 0.5-5 hours, carrying out cooling to 120 DEG C or below after the reaction is finished, and finally, naturally carrying out cooling to room temperature to obtain the crystal phosphorus fiber. According to the method for efficiently preparing the crystal red phosphorus fiber, non-catalytic induced crystallization from amorphous red phosphorus to the crystal red phosphorus fiber is achieved for the first time, the material preparation process is easy to operate, stable synthesis can be achieved, and the market prospect is extremely wide.

Description

technical field [0001] The invention belongs to the technical field of phosphorus material preparation, and in particular relates to a crystal red phosphorus fiber and a high-efficiency preparation method thereof. Background technique [0002] As a two-dimensional material, single-element phosphorus has gradually emerged in a wide range of fields for its potential properties. Elemental phosphorus has various allotropes, and crystalline phosphorus can be obtained by catalyzing commercial amorphous red phosphorus with the assistance of mineralizers, including: black phosphorus, crystalline red phosphorus II, IV, V and polymeric red phosphorus [P12(4)]P2 [. Each structure of crystalline phosphorus has unique properties. However, the method of mineralizer-assisted synthesis of crystalline phosphorus is limited by the type and application of mineralizers, and cannot achieve large-scale preparation of single-phase crystalline phosphorus. Forcing phosphorus materials cannot be un...

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): C30B29/02C30B29/62C30B25/00
CPCC30B29/02C30B29/62C30B25/005
Inventor 许并社张帅马淑芳王嘉惠
Owner SHAANXI UNIV OF SCI & TECH