Supercharge Your Innovation With Domain-Expert AI Agents!

Carbon material containing MN2O2 unit, preparation method and application in NO detection

A technology of MN2O2 and carbon materials, which is applied to the analysis of materials, electrochemical variables of materials, and material analysis through electromagnetic means, etc., which can solve the problems of limited catalytic activity of metal-salen materials, unfavorable nitric oxide sensor material research, difficult sensitive detection, etc. problems, to achieve the best detection results, reduce detection costs, and avoid pollution

Active Publication Date: 2021-11-09
SHANDONG UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Due to the instability of nitric oxide molecules, when preparing low-concentration nitric oxide, the lower limit of dilution is 5ppb, which is not conducive to the research of nitric oxide sensor materials
[0007] At present, metal-salen cross-linked materials are widely used in electrochemical methods for nitric oxide detection. For example, a Co-salen / Nafion modified electrode is disclosed in the prior art, and nitric oxide can be modified on the Co-salen / Nafion membrane. Electrocatalytic oxidation occurs on the electrode, which can then measure nitric oxide in natural seawater, but this metal-salen material is a homogeneous material, which is difficult to recover after application in aqueous solution, and the catalytic activity of the metal-salen material itself is limited, so in Difficult to detect sensitively at low levels of nitric oxide
In addition, the conductivity of metal-salen materials is not high, and the efficiency is low when used for electrochemical detection of nitric oxide

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
  • Carbon material containing MN2O2 unit, preparation method and application in NO detection
  • Carbon material containing MN2O2 unit, preparation method and application in NO detection
  • Carbon material containing MN2O2 unit, preparation method and application in NO detection

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The second aspect of the present invention provides the above-mentioned MN-containing 2 o 2 The preparation method of the carbon material of unit, comprises the steps:

[0039] The precursor M-Salen and carbon materials are ball milled at a certain ratio and calcined at high temperature to obtain MN-containing 2 o 2 unit carbon material.

[0040] Among them, during the calcination process, the structure of the precursor M-Salen changes to form MN 2 o 2 units, while attached in a carbon support, forming a composite.

[0041] The carbon material in the present invention is a carbon material, without special requirements, specifically including commercial carbon materials and carbon materials prepared by conventional experimental techniques, preferably one of acetylene black, carbon black, graphene, and carbon nanotubes or more.

[0042] In the above preparation process, containing MN 2 o 2 The addition ratio of the precursor of the unit to the carbon material has...

Embodiment 1

[0055] 1) Contains NiN 2 o 2 The preparation method of the unit carbon material: 1 gram of precursor M-Salen and 1 gram of commercial acetylene black are ball-milled for 15 minutes with a ball mill, and then calcined in a tube furnace at 300 degrees Celsius with a nitrogen stream for 2 hours. After the furnace was cooled to room temperature, the obtained black powder was washed with 30% hydrogen peroxide, deionized water and absolute ethanol, and dried in a vacuum oven at 60 degrees Celsius for 12 hours to obtain a NiN-containing powder. 2 o 2 The unit carbon material has a yield of 56% to 80%.

[0056] figure 2 The obtained NiN-containing 2 o 2 The high-resolution electron microscope image of the unit carbon material. It can be seen from the figure that the material presents a cloud-like morphology. image 3 It is the spherical aberration electron microscope picture of the material, and the nickel atoms dispersed in the form of single atoms can be clearly seen; Figur...

Embodiment 2

[0058] 1) Contains CuN 2 o 2 The preparation method of the unit carbon material: 1 gram of precursor Cu-Salen and 1 gram of graphene are ball-milled with a ball mill for 15 minutes, and then calcined in a tube furnace at 300 degrees Celsius with a nitrogen stream for 2 hours. After cooling to room temperature, the obtained black powder was washed with 30% hydrogen peroxide, deionized water and absolute ethanol, and dried in a vacuum oven at 60 degrees Celsius for 12 hours to obtain CuN-containing 2 o 2 The unit carbon material has a yield of 56% to 80%.

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 field of gas sensitive material synthesis technology and electrochemical detection, and particularly relates to a carbon material containing an MN2O2 unit, a preparation method and application in nitric oxide detection. The structure of the MN2O2 unit is shown as a formula I; in the formula I, M is Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn or Bi; R1 is equal to -CH2-CH2-,-Ph- or -Ch-. The carbon material containing the MN2O2 unit is used for detecting nitric oxide, and the MN2O2 unit with a special structure can provide excellent nitric oxide catalytic activity, so that the carbon material containing the MN2O2 unit has low detection limit and can realize sensitive detection when being applied to an actual nitric oxide detection process. Meanwhile, the material is a heterogeneous material, is insoluble in water and can be recycled when nitric oxide in an aqueous solution is detected, so that the detection cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of gas-sensitive material synthesis technology and electrochemical detection, in particular to an MN-containing 2 o 2 The carbon material of the unit, the preparation method and the application of detecting nitric oxide. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] As a newly recognized information molecule and "star molecule", nitric oxide has attracted widespread attention in life science and related disciplines due to its important physiological role in living organisms and one of the important factors for destroying the ozone layer. Recently, it has been reported that nitric oxide plays an important regula...

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): G01N27/30G01N27/48
CPCG01N27/308G01N27/304G01N27/48Y02A50/20
Inventor 邓伟侨周威杨丽谭怡吴昊
Owner SHANDONG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com